A network monitor or method provide network security specific to equipment of a building automation system (BAS) and server assessment of network communication directed thereto. A server couples to a building management network of the building automation system. The server monitors communication that is on the building management network, and determines whether such communication is directed to specific devices of the building automation system. The server determines a security assessment, a security-centric assessment, and/or a geo-location-based server assessment of a server that originated the incoming communication directed to specific device(s) of the building automation system.
Multiple air handling units feeding into a common air distribution system are used to provide both latent and sensible temperature control. When dehumidification without sensible cooling is required, different air handling units feeding into a common distribution system may be operated in different modes so that both cooling and reheating are occurring simultaneously. The result is an energy efficient means of controlling both ambient air temperature and relative humidity. Air handling units such as water source heat pumps and variable refrigerant flow (VRF) units may be employed.
A01G 9/24 - Dispositifs de chauffage, d'aération, de régulation de la température ou d'irrigation dans les serres, les châssis ou les installations similaires
3.
BASELINE ELECTRICAL LOAD OPERATION FOR A CLIMATE CONTROL SYSTEM OF A COMMERCIAL BUILDING
An embodiment of a climate control system for conditioning an interior space includes an interior space heat exchange circuit that is configured to circulate a working fluid to cool an airflow that is directed to the interior space. In addition, the climate control system includes a chiller that is configured to cool the working fluid. Further, the climate control system includes a thermal energy storage (TES) assembly further including a source of low-temperature fluid and a heat exchanger that is coupled to the interior space heat exchange circuit such that the heat exchanger is upstream of the chiller along the interior space heat exchange circuit. The heat exchanger is configured to receive a flow of the low-temperature fluid from the source to cool the working fluid to thereby supplement an output cooling capacity of the chiller.
A method and apparatus for controlling a climate control system with a wet injection bypass line during heating mode for maintaining efficient operating temperatures and compressor ratio of a compressor at low ambient temperature. The process may include selectively routing a portion of a refrigerant through a wet-injection bypass line and controlling a flow rate of the portion of refrigerant flow through the wet-injection bypass line. Controlling the flow rate of the refrigerant flowing through the bypass line includes adjusting a valve or valves coupled the at least one wet-injection bypass line or multiple wet-injection bypass lines based on measured parameters of the refrigerant fluid, outdoor conditions, indoor conditions, and the operating map for the compressor.
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
F25B 5/02 - Machines, installations ou systèmes à compression, avec plusieurs circuits d'évaporateurs, p. ex. pour faire varier la puissance frigorifique disposés en parallèle
F25B 41/20 - Disposition des soupapes, p. ex. de soupapes marche-arrêt ou de soupapes de régulation de débit
An oil-free compressor includes a compressor housing with a suction inlet and a discharge outlet, a compression mechanism and a liquid-vapor separation volume disposed within the compressor housing, a crankshaft. The compression mechanism has an inlet fluidly connected to the suction inlet and a discharge volume fluidly connected to the discharge outlet. The crankshaft is engaged with the compression mechanism. The liquid-vapor separation volume is configured to separate a mixed phase of working fluid into liquid working fluid and gaseous working fluid. The liquid working fluid is supplied to the bearing. A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a refrigerant circuit with an oil-free compressor, a condenser, one or more expanders, and an evaporator.
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 29/02 - LubrificationSéparation du lubrifiant
F25B 1/04 - Machines, installations ou systèmes à compression à cycle irréversible à compresseur rotatif
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Downloadable and recorded software for optimizing the design of a building's heating, ventilating and air conditioning system, for comprehensive energy load design and energy analysis of a building, and for data analysis of building heating, ventilating and air conditioning system performance. Computerized engineering, energy consumption analysis of building air conditioning systems; Providing non-downloadable online web-based software for optimizing the design of a building's heating, ventilating and air conditioning system, for comprehensive energy load design and energy analysis of a building, and for data analysis of building heating, ventilating and air conditioning system performance.
7.
COATING LAYER HAVING A CONFORMING MATERIAL FOR A COMPRESSOR AND METHOD OF USING THE SAME
A method, HVACR system, and positive displacement compressor that includes a compressor housing and a rotating component and at least one second component. Each of the rotating component and the at least one second component have a contacting surface that define a meshing location between the rotating component and the at least one second component to form a compression chamber. Additionally, a coating layer is provided on the contacting surface of at least one of the rotating component or the at least one second component, in which the coating layer includes at least a first applied layer and a second applied layer. The first layer and the second layer are separate layers and both the first layer and the second layer include a conforming material, in which the conforming material in the first applied layer has a different particle size than the conforming material in the second applied layer.
F04C 15/00 - Parties constitutives, détails ou accessoires des "machines", des pompes ou installations de pompage non couverts par les groupes
F04C 2/02 - Machines ou pompes à piston rotatif du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 2/16 - Machines ou pompes à piston rotatif du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés d'un autre type qu'à axe interne avec des pistons rotatifs dentés à dents hélicoïdales, p. ex. du type ayant la forme d'un chevron, du type à vis
A method and system allow a near-field wireless connection between a climate control system and a service edge device to be established for servicing the climate control system. A request to establish the near-field wireless connection is sent from the service edge device to a server or other processor associated with the climate control system. The server may verify the service edge device is permitted to connect to the climate control system. The server requests, to an owner edge device, authorization to allow the near-field wireless connection. The server receives authorization from the owner edge device to allow the near-field wireless connection. The server sends instruction to the climate control system to allow the near-field wireless connection.
H04W 4/80 - Services utilisant la communication de courte portée, p. ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
H04W 76/14 - Établissement de la connexion en mode direct
9.
SYSTEMS AND METHODS FOR DEHUMIDIFICATION USING CLIMATE CONTROL SYSTEMS
An embodiment of a climate control system includes an indoor unit including a first heat exchanger to transfer heat between a refrigerant and an airflow provided to a conditioned space. In addition, the system includes an outdoor unit that further includes a second heat exchanger to transfer heat between the refrigerant and an outdoor environment and a compressor to circulate the refrigerant through the first and second heat exchangers. Further, the system includes a thermostat to determine a relative humidity of the conditioned space and to output a dehumidification signal in response to a determination that the relative humidity is above a threshold. Still further, the system includes an electrical switch coupled to the indoor and outdoor units that is actuatable based on the dehumidification signal to conduct electrical current from the indoor unit to the outdoor unit to increase a speed of the compressor.
F24F 11/62 - Aménagements de commande ou de sécurité caractérisés par le type de commande ou par le traitement interne, p. ex. utilisant la logique floue, la commande adaptative ou l'estimation de valeurs
F24F 3/14 - Systèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par humidificationSystèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par déshumidification
F24F 11/77 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de l’apport en air traité, p. ex. commande de la pression pour la commande du débit d'air ou de la vitesse de l’air en commandant la vitesse de rotation des ventilateurs
Embodiments of systems and methods for power demand management are described herein. More specifically, embodiments comprise systems and methods for powering, controlling, and/or operating various types of controllable load for integration with power fluctuations from intermittent power generation plants, such as photovoltaic arrays and wind turbine farms.
G06F 1/3203 - Gestion de l’alimentation, c.-à-d. passage en mode d’économie d’énergie amorcé par événements
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
Architectures and techniques are presented that can more efficiently route excess air flow by intelligently selecting the zones to which the excess air flow is to be routed. Excess air flow results from an HVAC device providing (e.g., at a minimum setting) a volume of air that is greater than what is demanded by a zone that triggers activation of the HVAC device. As one example, excess air flow can be routed to a zone or zones that are determined to be most likely to trigger a subsequent activation condition that would cause the HVAC device to be activated again at a future time.
F24F 11/72 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de l’apport en air traité, p. ex. commande de la pression
F24F 3/044 - Systèmes dans lesquels tout le traitement est fait dans une centrale, c.-à-d. systèmes "tout-air"
A method and a first apparatus for controlling a load facility in response to a demand event. The method includes, by the first apparatus: establishing a response strategy for the demand event based on a plurality of resources of the load facility that are defined based on user input of a user associated with the load facility; and causing a second apparatus at the load facility to execute the response strategy to reduce demand on the power grid from the load facility during the demand event. The first apparatus being remote to the load facility.
H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
A heat pump system for a building can include thermal energy storage tanks, a first air source heat pump for providing energy to the system, a second air source heat pump for providing energy to the system under cold climate conditions, and an additional heat source for supporting defrost operations and/or to provide energy under extreme cold conditions. The system can further include a controller configured to provide efficient use of energy sources to meet heating demands under extreme cold conditions.
F28D 20/00 - Appareils ou ensembles fonctionnels d'accumulation de chaleur en généralAppareils échangeurs de chaleur de régénération non couverts par les groupes ou
(1) Commercial air conditioners, namely, chiller systems; air conditioners and air and water heaters; air conditioning and heating systems, namely, refrigeration chillers, compressors, condensers, evaporators, purge units and commercial and industrial air conditioners, ventilators and heating units
Commercial air conditioners, namely, chiller systems; air conditioners and air and water heaters; air conditioning and heating systems, namely, refrigeration chillers, compressors, condensers, evaporators, purge units and commercial and industrial air conditioners, ventilators and heating units
Architectures or techniques are presented that can improve operation of permanent magnet (PM) motors, which can be part of a compressor or other heating, ventilation, and air conditioning (HVAC) device. Such improvements can be achieved by integration of inductive filtering into the motor assembly. For example a first architecture can include a ferromagnetic core element in the PM motor that can cause a non-torque-producing reluctance path to the shaft. A second architecture can integrate a signal filter, which is customarily external, into a housing of the PM motor. A third architecture can couple an inductor (e.g., of the signal filter) to the shaft.
H02K 11/02 - Association structurelle de machines dynamo-électriques à des organes électriques ou à des dispositifs de blindage, de surveillance ou de protection pour la suppression des parasites d’origine électromagnétique
H02K 1/276 - Aimants encastrés dans le noyau magnétique, p. ex. aimants permanents internes [IPM]
H02K 1/278 - Aimants montés en surfaceAimants sertis
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
H02K 21/14 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
H03H 1/00 - Détails de réalisation des réseaux d'impédances dont le mode de fonctionnement électrique n'est pas spécifié ou est applicable à plus d'un type de réseau
17.
HYBRID FREE COOLING WITH CONDENSER SURFACE CONTROL
A condenser includes valves allowing the total condensing surface of the condenser to be varied. The valves are controlled to maintain suitable pressure differentials in a mechanical cooling circuit while in a hybrid mode combining mechanical cooling by the mechanical cooling circuit with free cooling. Fan speeds for condenser/free cooling can be controlled in concert with the valves, allowing the fan speeds to be increased without causing the pressure differential to fall below requirements for operation of the mechanical cooling circuit.
F24F 11/84 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur au moyen de valves
An autocascade heat transfer fluid circuit includes one or more concentration sensors. The concentration sensors allow the determination of a current composition of a blended working fluid containing multiple components that separate during operation of the autocascade heat transfer fluid circuit. The current composition allows determination of a dew point for the current composition, and a superheat can be calculated based on the determined dew point and pressure and temperature readings. The determined superheat can in turn be used to control operations of the autocascade heat transfer fluid circuit, for example by control of an expander thereof.
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
F25B 7/00 - Machines, installations ou systèmes à compression fonctionnant en cascade, c.-à-d. avec plusieurs circuits, l'évaporateur d'un circuit refroidissant le condenseur du circuit suivant
An embodiment of a method of moving a motor within an enclosure of an air handler of a climate control system includes (a) suspending the motor from a first lifting support and a second lifting support via lifting line, the first lifting support being laterally spaced from the second lifting support in the enclosure. In addition, the method includes (b) shortening the lifting line extending between the motor and the second lifting support. Further, the method includes (c) lengthening the lifting line extending between the motor and the first lifting support. Still further, the method includes (d) moving the motor laterally within the enclosure as a result of (b) and (c).
A heat pump system includes a heat pump and an auxiliary heat source. A heating coefficient of performance is determined for the heat pump based on ambient outdoor air temperatures, and the heat pump is operated to heat a process fluid an output temperature based on the heating coefficient of performance and a reference heating coefficient of performance. The auxiliary heat source can be operated to bring the process fluid to a target temperature for heating a load, with the target temperature being a function of the ambient outdoor air temperatures.
A method is provided for controlling an HVAC system. The method includes obtaining observations of a measured temperature by at least one temperature sensor, and accessing a lumped-element model of the at least one temperature sensor in which a change in the measured temperature is expressed as a function of one or more independent variables including the measured temperature, and unknown parameter(s) including an ambient temperature of the conditioned space. A regression analysis of the lumped-element model is performed using observations of the one or more independent variables including the observations of the measured temperature, and estimates of the unknown parameter(s), to determine updated estimates of the unknown parameter(s) including an updated estimate of the ambient temperature. A value of the ambient temperature is determined from the updated estimate of the ambient temperature, and HVAC equipment is controlled using the value of the ambient temperature.
TRANE AIR CONDITIONING SYSTEMS (CHINA) CO., LTD. (Chine)
TRANE INTERNATIONAL INC. (USA)
Inventeur(s)
Xia, Kui
Jin, Zi Xia
Chen, Bin Bin
Yue, Jian Jun
Raimbault, Yves Jacques
Abrégé
A fin-and-tube heat exchanger and a fin are disclosed. The fin includes a corrugated plate having a first side and a second side opposing the first side, the corrugated plate having a plurality of alternative peaks and valleys relative to the first side of the corrugated plate; one of a plurality of elliptical collar bases protruding from the first side of the corrugated plate; and a first airfoil and a second airfoil extending between a major axis and a minor axis of, and curving around, the one of the plurality of elliptical collar bases. The first airfoil is disposed in a first quadrant for the one of the plurality of elliptical collar bases. The second airfoil is disposed in a second quadrant for the one of the plurality of elliptical collar bases, the second quadrant is adjacent to the first quadrant at the major axis.
F28F 3/02 - Éléments ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des évidements, avec des ondulations
F28F 1/30 - Éléments tubulaires ou leurs ensembles avec moyens pour augmenter la surface de transfert de chaleur, p. ex. avec des ailettes, avec des saillies, avec des évidements ces moyens étant uniquement à l'extérieur de l'élément tubulaire et s'étendant transversalement les moyens pouvant être fixés à l'élément
23.
LIQUID LEVEL CONTROL OF EXPANSION VALVES IN CLIMATE CONTROL SYSTEMS
An example method of controlling a component of a climate control system includes discharging a multiphase fluid from a condenser of the climate control system. In addition, the method includes flowing the multiphase fluid though a conduit that is downstream of the condenser, the multiphase fluid including a liquid portion and a gas portion and diverting a portion of the multiphase fluid out of the conduit and into a receptacle. Further, the method includes determining a parameter of the multiphase fluid in the receptacle, the parameter corresponding to a composition of the liquid portion and the gas portion of the multiphase fluid. Still further, the method includes controlling the component of the climate control system based at least in part on the parameter.
Methods and related systems for controlling indoor relative humidity are disclosed. In an embodiment, the method includes (a) determining a target dew point temperature based on desired indoor conditions for the indoor space, and (b) determining an initial dew point temperature based on an initial set of current indoor conditions of the indoor space. In addition, the method includes (c) determining a target coil temperature of a coil of an indoor heat exchanger of the climate control system based on the target dew point temperature and the initial dew point temperature, and (d) adjusting a speed of air flowing across the coil or a speed of a compressor of the climate control system after (c) based on the target coil temperature to reduce a difference between a coil temperature of the coil and the target coil temperature.
F24F 11/30 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p. ex. pour la sécurité ou la surveillance
F24F 3/14 - Systèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par humidificationSystèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par déshumidification
F24F 11/86 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des compresseurs dans les circuits de pompes à chaleur ou de réfrigération
Methods and related systems for controlling an indoor air temperature for a heat pump system are disclosed. In an embodiment, the method includes (a) determining an outdoor coil temperature of an outdoor heat exchanger and a speed of a compressor of a heat pump system. In addition, the method includes (b) determining a target indoor coil temperature of the indoor coil based on the outdoor coil temperature and the speed of the compressor. Further, the method includes (c) adjusting a speed of air flowing across the indoor coil based on a difference between a current indoor coil temperature and the target indoor coil temperature to reduce the difference between the current indoor coil temperature and the target indoor coil temperature.
Methods and related systems are disclosed for determining a temperature of an indoor space with a plurality of onboard sensors of a device of a climate control system. In an embodiment, the method includes detecting raw temperatures with the plurality of sensors. In addition, the method includes determining a combined temperature offset for a first sensor of the plurality of sensors based on outputs of a plurality of models. The plurality of models are to determine a plurality of temperature offsets for the first sensor based on different airflow directions relative to the device. Further, the method includes adjusting the raw temperature detected by the first sensor with the combined temperature offset.
G05B 13/04 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques impliquant l'usage de modèles ou de simulateurs
G06F 17/18 - Opérations mathématiques complexes pour l'évaluation de données statistiques
27.
METHOD AND SYSTEM FOR CONTROLLING DIFFERENTIAL PRESSURE FOR AN EXTERNALLY PRESSURIZED GAS BEARING APPARATUS
A heat transfer circuit includes a compressor, a condenser, an expander, and an evaporator that are fluidly connected together. The compressor includes a housing and a shaft rotatable relative to the housing to compress a working fluid received at a suction inlet, in which the shaft is supported by a gas bearing, and the gas bearing including a bearing housing having a fluid inlet and an outlet. A high pressure gas source is fluidly connected to the fluid inlet of the bearing housing for supplying high pressure fluid to the fluid inlet of the gas bearing such that the gas bearing supports the shaft when the shaft is rotating. A pressure reducer is connected to the outlet of the gas bearing is provided for reducing a vent pressure of the gas bearing.
F04D 29/063 - Lubrification spécialement adaptée aux pompes pour fluides compressibles
F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
F16C 32/06 - Paliers non prévus ailleurs comprenant un élément mobile supporté par un coussinet de fluide engendré, au moins en grande partie, autrement que par la rotation de l'arbre, p. ex. paliers hydrostatiques à coussinet d'air
28.
COOLING-HEATING UNITS WITH PRIORITIZED LOADING, SYSTEM THEREOF, AND METHOD THEREOF
A heating-cooling system includes cooling-heating units fluidly connected to a heating flow path for a first process fluid and to a cooling flow path for a second process fluid. The cooling-heating units include one or more primary cooling-heating units and one or more secondary cooling-heating units. The primary cooling-heating unit(s) and secondary cooling-heating unit(s) are fluidly connected to the heating flow path such that when active, a heating load is prioritized to the primary cooling-heating unit(s) over the secondary cooling-heating unit(s). A method of controlling a heating-cooling system includes selectively operating the heating-cooling system in a plurality of modes. In a mode, secondary cooling-heating unit(s) and primary cooling-heating unit(s) each heat the first process fluid and cool the second process fluid, and the one or more of the primary cooling-heating units operate at or about maximum conditioning capacity.
TRANE AIR CONDITIONING SYSTEMS (CHINA) CO., LTD. (Chine)
TRANE INTERNATIONAL INC. (USA)
Inventeur(s)
Du, Terry Yu Qing
Li, Jie Karen
Wan, Wangshu
Chen, Even
Sun, Ning
Xu, Xinlei
Cunningham, Patrick J.
Abrégé
A flow reversing device is provided for a heating, ventilation, air conditioning, and refrigeration (HVACR) system having a heat exchanger. The flow reversing device included a first flow control device, a second flow control device, a third flow control device, and a fourth flow control device, each flow control device being a two-way flow control device. When the first flow control device and the fourth flow control device are opened and the second flow control device and the third flow control device are closed, a first flow is formed. When the second flow control device and the third flow control device are opened and the first flow control device and the fourth flow control device are closed, a second flow is formed. The first flow and the second flow are in opposite directions.
A test probe inserted in a specific heat exchanger tube is used to produce test data of non-destructive testing of the specific heat exchanger tube. The test data of the non-destructive testing of the specific heat exchanger tube is accessed. A structural health assessment of the specific heat exchanger tube is determined, using the accessed test data of the non-destructive testing of the specific heat exchanger tube in comparison to calibration data from testing of at least one calibration standard heat exchanger tube that is more closely related to the specific heat exchanger tube than to a generic tube.
A controller for a climate control system that is operatively coupled to a compressor and that includes control circuitry. The control circuitry is configured to receive a diameter of at least one of the one or more refrigerant lines, and adjust a minimum operating speed of the compressor based at least in part on the diameter to provide a minimum flow velocity for the refrigerant to return oil to the compressor through the fluid circuit during operation of the climate control system.
A control input represents directed flow rate of refrigerant through a virtual refrigerant metering device. For a plurality of parallel-connected, real, non-virtual, refrigerant metering devices, control input is determined for each, based on refrigerant flow characteristic of each refrigerant metering device, to produce individual flow rates through the refrigerant metering devices that provide an aggregate flow rate equivalent to the directed flow rate. Control signals are sent to the refrigerant metering devices.
An air handler includes a housing with a heat exchanger core. The housing includes a faceplate, a roof panel, a base panel, a first side panel, and a second side panel. A first tunnel and a second tunnel are connected to the housing at the faceplate. A septum protrudes from the faceplate and connects the core at a front edge. The air handler further includes a first recirculation path and a second recirculation path inside the housing. The first and second recirculation paths are defined by the septum, the housing, and the core. The first and second recirculation paths are configured to direct a portion of airflow from the first tunnel to the second tunnel. The air handler further includes a first damper and a second damper disposed on the faceplate and configured to obstruct the first recirculation path and the second recirculation path respectively.
A free cooling system includes a circulation path including a pump and one or more heaters. The free cooling system can further include an isolation valve to isolate the circulation path from an active free cooling circulation path. The pump is configured to circulate a process fluid when the free cooling system is deactivated, and the one or more heaters are configured to add heat to the process fluid in the circulation path such that the process fluid remains above a freezing temperature of said process fluid.
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) Downloadable software for predicting the performance and efficiency of air conditioning and chilling equipment and to measure the energy efficiency of commercial air conditioners and heat pumps
09 - Appareils et instruments scientifiques et électriques
Produits et services
Downloadable software for predicting the performance and efficiency of air conditioning and chilling equipment and to measure the energy efficiency of commercial air conditioners and heat pumps
37.
BUFFER TANK ASSEMBLIES FOR CLIMATE CONTROL SYSTEMS
An embodiment of a buffer tank for a hydronic climate control system includes a buffer tank including an inlet port and an outlet port, an inlet line connected to the inlet port, and an outlet line connected to the outlet port. In addition, the buffer tank assembly includes a bypass line connected to the inlet line and the outlet line so that the buffer tank assembly defines a first flow path from the inlet line to the outlet line through the buffer tank and a second flow path from the inlet line to the outlet line through the bypass line. Further, the buffer tank assembly includes a flow control device in fluid communication with the buffer tank and the bypass line, wherein the flow control device is actuatable to control fluid flow along the first flow path and the second flow path.
F24F 11/84 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur au moyen de valves
F24F 5/00 - Systèmes ou appareils de conditionnement d'air non couverts par ou
F24F 140/20 - Température du fluide échangeur de chaleur
38.
TECHNIQUES FOR FIRMWARE UPDATES IN BUILDING AND EQUIPMENT CONTROLLERS
Devices, systems, and methods are described for updating firmware in building and equipment controllers. Several embodiments include a fleet manager configured to simplify and automate remote firmware updates to connected (e.g., cloud-connected) embedded equipment and building control devices. The updates may be performed immediately or scheduled, such as based on user preferences, constraints, and conditions and/or device parameters and capabilities. In many embodiments, the fleet manager may engage in an interactive process, such as with a client, to schedule and perform updates.
An embodiment of a system includes a pipeline of a wastewater system, an equalization tank that is configured to receive wastewater from the pipeline, and a return line extending from the equalization tank to the pipeline. In addition, the system includes an electricity generation assembly in fluid communication with the return line that is configured to generate electrical power using a flow of wastewater through the return line. The electricity generation assembly includes a flow channel, a water wheel that is partially inserted into the flow channel such that a portion of the water wheel is extended outside of the flow channel, and an electrical generator connected to the water wheel.
A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a compressor with a gas bearing supplied with compressed gas and a controller. The controller is configured to determine an inlet pressure and outlet pressure of the gas bearing, determine a maximum speed limit based on the inlet pressure and the outlet pressure, and prevent the compressor from operating at a speed that is greater than the maximum speed limit. A method of controlling a compressor includes calculating a maximum speed limit based on an inlet pressure and an outlet pressure of the gas bearing. The method also includes in response to determining that a speed setting is greater than the maximum speed limit, adjusting operation of the compressor such that a speed of the compressor is at or below the maximum speed limit.
F04D 29/063 - Lubrification spécialement adaptée aux pompes pour fluides compressibles
F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
F16C 32/06 - Paliers non prévus ailleurs comprenant un élément mobile supporté par un coussinet de fluide engendré, au moins en grande partie, autrement que par la rotation de l'arbre, p. ex. paliers hydrostatiques à coussinet d'air
Energy generation system for converting combustible fluid from nontraditional combustible fluid source to useable energy. The energy generation system including a fluid storage system including a compressor and at least one storage tank, the compressor configured to pressurize a combustible fluid from a combustible fluid source for storage in the one or more storage tanks; and an energy recovery system configured to receive the combustible fluid from the at least one storage tank, the energy recovery system including: turboexpander configured to depressurize the combustible fluid received from the at least one storage tank; motor-generator configured to input the combustible fluid as depressurized by the turboexpander, and generate electrical energy from the combustible fluid; and organic Rankine cycle (ORC) system configured to generate electrical energy based on a temperature differential between the combustible fluid input to the motor-generator and a waste heat produced by the motor-generator.
F01K 7/16 - Ensembles fonctionnels de machines à vapeur caractérisés par l'emploi de types particuliers de machines motricesEnsembles fonctionnels ou machines motrices caractérisés par un circuit de vapeur, un cycle de fonctionnement ou des phases particuliersDispositifs de commande spécialement adaptés à ces systèmes, cycles ou phasesUtilisation de la vapeur soutirée ou de la vapeur d'évacuation pour le réchauffage de l'eau d'alimentation les machines motrices étant uniquement du type turbine
F01K 15/00 - Adaptations des ensembles fonctionnels de machines à vapeur à des usages particuliers
F01K 23/06 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle
F01K 23/10 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle le fluide à la sortie de l'un des cycles chauffant le fluide dans un autre cycle
F02C 1/02 - Ensembles fonctionnels de turbines à gaz caractérisés par l'utilisation de gaz chauds ou de gaz sous pression non chauffés, comme fluide de travail le fluide de travail étant un gaz sous pression non chauffé
F02C 6/14 - Ensembles fonctionnels de turbines à gaz comportant des moyens pour emmagasiner l'énergie, p. ex. pour faire face à des pointes de charge
F17C 5/06 - Procédés ou appareils pour remplir des récipients sous pression de gaz liquéfiés, solidifiés ou comprimés pour le remplissage avec des gaz comprimés
Re-calibrating a bearing system of a compressor includes analyzing environmental data pertaining to a compressor to detect occurrence of a calibration threshold event, and re-calibrating the bearing system based on the detected calibration threshold event by controlling placement of a shaft relative to the bearing system of the compressor.
A compressor includes a lubricant pump and a shaft having a lubricant vent extending through the shaft. The vent has an outlet, which can be provided below a stator-rotor assembly of a motor of the compressor. The shaft can be used in a variable speed compressor to convey excess lubricant when the pump is over-supplying lubricant due to operation at speeds greater than the minimum speed. The vent can be positioned at a center of the shaft. The outlet of the vent can direct gas and/or lubricant onto windings of the stator so as to provide cooling.
F04C 29/02 - LubrificationSéparation du lubrifiant
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
45.
DEVICES, SYSTEMS, AND METHODS FOR CONTROLLING LIQUID LEVELS USING ISOLATION RESISTANCE
Devices, systems, and methods are disclosed for reducing leakage current in compressors, such as for heating, ventilation, and air conditioning, and refrigeration (HVAC/HVACR) systems. Several embodiments include a sensor for measuring the isolation resistance of an enclosure of a compressor. The sensor can be electronically coupled to a controller that is configured to activate a heating element mechanically coupled to the enclosure when the controller determines that the isolation resistance measured by the sensor falls indicates that the compressor is at risk of faulting. Activating the heating element causes the refrigerant mixed within the oil to evaporate, which lowers the liquid level within the compressor.
An embodiment of an outdoor unit for a climate control system includes a refrigerant compressor. In addition, the outdoor unit includes a plurality of refrigerant lines coupled to the refrigerant compressor. Further, the outdoor unit includes an enclosure positioned around the refrigerant compressor, wherein the enclosure includes an inner jacket and an outer jacket, the inner jacket being engaged with the outer jacket such that the inner jacket is configured to deform independently from the outer jacket to dissipate vibration emitted from the refrigerant compressor.
An air conditioning unit includes a housing, a partition disposed in the housing, a refrigerant circuit, a blower, an air valve, and a refrigerant leak detection system configured to detect a refrigerant leak within the air conditioning unit. The housing includes a first compartment and a second compartment, and the partition separates the first compartment and the second compartment. The refrigerant circuit disposed in the first compartment. The air valve extending through the partition or through the housing to the second compartment. The air valve configured to open in response to the refrigerant leak detection system detecting the refrigerant leak. A method of ventilating an air conditioning unit includes detecting, via a refrigerant leak detection system, for a refrigerant leak within the air conditioning unit, and in response to detecting the refrigerant leak, opening an air valve.
Methods and systems for an air conditioning unit is provided. The air conditioning unit includes a housing having a first compartment and a second compartment separated from the first compartment by a partition disposed in the housing, the housing including an air inlet and an air outlet. A refrigerant circuit includes a compressor disposed in the first compartment. An air flow path extends through the second compartment. The air flow path is arranged to route air flow from the air inlet to the air outlet, and a blower is disposed in the air flow path. A refrigerant leak detection system is configured to detect a refrigerant leak within the housing. An inducer is disposed in the housing. The inducer is configured to move air from the first compartment into the air flow path upon detection of the refrigerant leak by the refrigerant leak detection system.
F24F 11/36 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p. ex. pour la sécurité ou la surveillance réagissant aux dysfonctionnements ou aux situations critiques aux fuites de fluides échangeurs de chaleur
An embodiment of a heating system for a camp includes at least one heat exchanger bed. Each heat exchanger bed includes a bed frame defining a chamber therein, a bedding assembly positioned on top of the bed frame, and a heat exchanger positioned in the chamber that is configured to transfer heat to or from the bedding assembly.
F24D 7/00 - Systèmes de chauffage central utilisant des fluides échangeurs de chaleur non couverts par les groupes , p. ex. de l'huile, un sel ou un gaz
F24D 13/04 - Systèmes de chauffage électrique utilisant le chauffage électrique d'un fluide échangeur de chaleur dans des éléments du système séparés
F24D 19/00 - SYSTÈMES DE CHAUFFAGE DE LOCAUX DOMESTIQUES OU D'AUTRES LOCAUX, p. ex. SYSTÈMES DE CHAUFFAGE CENTRALSYSTÈMES D'ALIMENTATION EN EAU CHAUDE À USAGE DOMESTIQUELEURS ÉLÉMENTS OU PARTIES CONSTITUTIVES Détails
HVAC components having improved efficiency are described. In one embodiment, excessive sleep current draw in a battery-powered device having a microcontroller is detected by measuring a voltage drop across a MOSFET device coupled in a forward-conducting orientation in series between the battery and the microcontroller, causing a transistor to conduct when the voltage drop exceeds a predetermined threshold to generate a first trigger signal, integrating the first trigger signal to generate a second trigger signal, and generating an interrupt to the microcontroller. In another embodiment, a battery-saving method of operating an HVAC component includes maintaining the HVAC device in the sleep mode, receiving a user input to wake the device, transmitting a data request and returning the HVAC component to the sleep mode, waking up the HVAC device to poll an adjacent network node storing a cached response, displaying the response, and returning the HVAC device to sleep.
G01R 19/165 - Indication de ce qu'un courant ou une tension est, soit supérieur ou inférieur à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée
H02H 7/18 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour pilesCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour accumulateurs
52.
MULTI-FEED CHILLER-HEATER PRODUCTION MODULE AND METHOD OF CONTROLLING THE SAME
A packaged heating and/or cooling unit for a production module for a heating, ventilation, air conditioning, and refrigeration (HVACR) system. The packaged unit includes a heat pump configured to provide heating and/or cooling; a connection to a piping distribution system to selectively connect to a hot fluid circuit and/or a cold fluid circuit; and a controller. The controller is configured to connect to and receive a signal from a building automation system for a heating requirement or a cooling requirement, and further configured to selectively control connection to either the hot fluid circuit or the cold fluid circuit and independently control the packaged heating and/or cooling unit based on the signal from the building automation system for either the heating requirement or the cooling requirement.
Methods and related systems for controlling an indoor air temperature for a heat pump system are disclosed. The method includes (a) determining an outdoor coil temperature of an outdoor heat exchanger and a speed of a compressor of a heat pump system, (b) determining a target indoor coil temperature of the indoor coil based on the outdoor coil temperature and the speed of the compressor, and (c) adjusting a speed of air flowing across the indoor coil based on a difference between a current indoor coil temperature and the target indoor coil temperature to reduce the difference between the current indoor coil temperature and the target indoor coil temperature.
Methods and related systems for controlling indoor relative humidity include (a) determining a target dew point temperature based on desired indoor conditions for the indoor space, and (b) determining an initial dew point temperature based on an initial set of current indoor conditions of the indoor space. The method includes (c) determining a target coil temperature of a coil of an indoor heat exchanger of the climate control system based on the target dew point temperature and the initial dew point temperature, and (d) adjusting a speed of air flowing across the coil or a speed of a compressor of the climate control system after (c) based on the target coil temperature to reduce a difference between a coil temperature of the coil and the target coil temperature.
F24F 11/30 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p. ex. pour la sécurité ou la surveillance
F24F 3/14 - Systèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par humidificationSystèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par déshumidification
F24F 11/86 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des compresseurs dans les circuits de pompes à chaleur ou de réfrigération
Generally, management of refrigerant in an evaporator of an HVAC chiller is described. Methods, systems, and apparatuses to manage refrigerant in an evaporator can include one or combination of the following approaches: (1) by use of a refrigerant displacement array to physically prevent refrigerant from residing where the array is positioned; (2) by control of the interstitial velocity of refrigerant flow within the volume of the shell of an evaporator; (3) by a phase biased distribution of the refrigerant mixture, so that a gaseous portion is uniformly distributed into the evaporator shell, while liquid refrigerant and oil is distributed into the evaporator shell at a designated area; and (4) by preventing or reducing the occurrence of foaming inside the evaporator through anti-foaming surfaces, such as by the use of refrigerant phobic and lubricant phobic material(s). Refrigerant management can in turn improve the thermal performance and overall efficiency of the evaporator.
F28D 3/02 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique s'écoule sous forme de pellicule continue ou ruisselle librement sur les canalisations avec canalisations tubulaires
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
F28F 9/013 - Supports auxiliaires pour les éléments pour les tubes ou les assemblages de tubes
F28F 13/02 - Dispositions pour modifier le transfert de chaleur, p. ex. accroissement, diminution en influençant la couche limite
F28F 13/18 - Dispositions pour modifier le transfert de chaleur, p. ex. accroissement, diminution par application de revêtements, p. ex. absorbant les radiations ou les réfléchissantDispositions pour modifier le transfert de chaleur, p. ex. accroissement, diminution par application d'un traitement de surface, p. ex. un polissage
56.
HVAC control device with animated graphical user interface
An evaporator includes a heat exchanger configured to subcool received working fluid and a distribution device configured to provide the working fluid to one or more expanders provided within the shell of the evaporator, with the expanders configured to expand the working fluid and provide said working fluid into bundles of heat exchange tubes provided within the shell of the expander.
F28D 7/16 - Appareils échangeurs de chaleur comportant des ensembles de canalisations tubulaires fixes pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation les canalisations étant espacées parallèlement
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
59.
INTEGRATED HEATING SYSTEM USING A STIRLING HEAT PUMP
Examples of the present disclosure relate to systems and methods for providing hot water for a hot water heater and heating capacity for a climate control system by utilizing a Stirling heat pump system. The Stirling heat pump may be partially integrated into an indoor unit of the climate control system and a hot water heater. An additional indoor heat exchanger may receive heating fluid from the Stirling heat pump system to provide heating capacity in addition to another indoor heat exchanger of the climate control system. Further, the heating fluid circuit of the Stirling heat pump system may be partially integrated into a hot water tank for heating water. A controller may direct the flow of heating fluid from the Stirling heat pump to the hot water tank and/or the climate control system based on a request for heating.
F25B 9/14 - Machines, installations ou systèmes à compression dans lesquels le fluide frigorigène est l'air ou un autre gaz à point d'ébullition peu élevé caractérisés par le cycle utilisé, p. ex. cycle de Stirling
A compressor includes a driveshaft, a bearingless motor, one or more magnetic bearings, and a controller for the bearingless motor. The bearingless motor configured to rotate the driveshaft to compress a working fluid. The one or more magnetic bearings magnetically support the driveshaft when rotating. The controller is configured to adjust magnetic support provided by the bearingless motor to the driveshaft based on operation of the compressor. A method of operating a compressor includes rotating, with a bearingless motor, a driveshaft to compress a working fluid and magnetically supporting, with one or more magnetic bearings, the driveshaft. The method also includes magnetically supporting, with the bearingless motor, the driveshaft in which the magnetic support provided by the bearingless motor is adjusted based on operation of the compressor.
A refrigerant composition includes R1132(E) refrigerant, a second refrigerant, and a third refrigerant. The second refrigerant is one of R1234ze(E) refrigerant, R134a refrigerant, or R1234yf refrigerant. The third refrigerant is one of R32 refrigerant, R1132a refrigerant, R1123 refrigerant, and CO2. The refrigerant composition has a GWP of at or about or less than 750. A method of making a refrigerant composition for an HVACR system includes mixing an amount of R1132(E) refrigerant, an amount of a second refrigerant, and an amount of a third refrigerant. A method of retrofitting an HVACR system having an existing refrigerant composition includes adding at least one of R1132(E) refrigerant, a second refrigerant, and a third refrigerant to the existing refrigerant composition to obtain a retrofit refrigerant composition.
A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a liquid refrigerant control valve fluidly connecting a liquid refrigerant line to a connection point downstream of an expansion device. A controller monitors a pressure or a mode change in the system, and activates the liquid refrigerant control valve to temporarily inject liquid refrigerant into the connection point downstream of the expansion device for refrigerant compensation.
F24F 11/84 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur au moyen de valves
F25B 41/20 - Disposition des soupapes, p. ex. de soupapes marche-arrêt ou de soupapes de régulation de débit
Method and systems for controlling electrical loads of a power source from a load facility are provided. The method includes determining a set of electrical loads, determining a set of conditions, predicting energy consumption using a machine learning model based on the set of electrical loads and the set of conditions, visualizing the energy consumption on a display device, and controlling the set of electrical loads under the set of conditions.
H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
Examples of the present disclosure relate to systems and methods for controlling the positioning of a modulating valve of a heat pump based on a discharge temperature setpoint of a compressor during periods of low ambient outdoor temperatures. A supervisory switching controller may determine that the climate control system should use a discharge temperature controller or a superheat controller to control the modulating valve. Upon detection of ambient outdoor temperatures below a minimum threshold and the detection of discharge temperatures of a compressor above a maximum threshold a discharge temperature controller may control the modulating valve. The discharge temperature controller may control the positioning of the modulating valve based on a discharge temperature setpoint and a map-based controller. The map-based controller may map a calculated discharge temperature error to a position of the modulating valve as a function of a calculated superheat value and a measured suction pressure.
F24F 11/84 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur au moyen de valves
66.
Systems and methods for operating a climate control system on a microgrid
Examples of the present disclosure relate to systems and methods for operating a climate control system on a microgrid utilizing renewable sources of power including solar panels and wind turbines. In general, this disclosure focuses on utilizing a range of stepped or discrete demand responses for the climate control system to adjust power consumption levels in response to variable levels of power input associated with renewable power sources attached to the microgrid. These stepped or discrete demand responses of the climate control system may allow the microgrid to react to linear, continuous, or non-discrete fluctuations in the input power while reducing the likelihood of damage to the climate control system. Some examples may also allow the climate control system to more consistently maintain comfort settings of conditioned spaces. Some examples utilize a direct current (DC) microgrid and climate control system.
Process fluid from a hydronic system can be directed to an air-to-fluid heat exchanger in a heat exchange relationship with an outdoor heat exchanger of a thermal system connected to the hydronic system. The flow from the hydronic system to the air-to-fluid heat exchanger can be controlled using one or more valves. The process fluid at the air-to-fluid heat exchanger can defrost the outdoor heat exchanger, be used for free heating or cooling by being directed to a secondary load, or be used for balancing of cascade systems. A reversible fan can be provided at the outdoor heat exchanger and the air-to-fluid heat exchanger to facilitate these operations.
F25B 7/00 - Machines, installations ou systèmes à compression fonctionnant en cascade, c.-à-d. avec plusieurs circuits, l'évaporateur d'un circuit refroidissant le condenseur du circuit suivant
F25B 41/20 - Disposition des soupapes, p. ex. de soupapes marche-arrêt ou de soupapes de régulation de débit
68.
REFRIGERANT RECOVERY SYSTEM AND RECOVERY CART THEREOF
A refrigerant recovery system includes a refrigerant circuit with a vacuum pump, a first connection port, a second connection port, an exhaust port, and multiple-way valves that selectively fluidly connect said ports to the vacuum pump. The multiple-way valves have a first configuration, a second configuration, and a third configuration for fluidly connecting the ports to a suction inlet and a discharge outlet of the vacuum pump. A method is for recovering refrigerant from a refrigerant circuit using a refrigerant recovery system. The method includes operating the refrigerant recovery system in a liquid recovery configuration to transfer liquid refrigerant in a refrigerant circuit into one or more recovery cylinders and operating the refrigerant recovery system in a gas recovery configuration to transfer gaseous refrigerant in the refrigerant circuit into the one or more recovery cylinders. A recovery cart includes a transfer circuit of a refrigerant recovery system.
An embodiment of a crimped joint for tubing of a climate control system includes a central axis and a first tube including a throughbore, an outer end, and an annular projection. The projection forms an annular chamber within the throughbore extending radially outward from the central axis. In addition, the joint includes an annular seal member positioned within the annular chamber, and a second tube including an end and a radially outer surface. The end of the second tube is inserted into the throughbore of the first tube such that the annular seal member is engaged with the radially outer surface of the second tube and the second tube axially overlaps with the first tube in a region between the end of the second tube and the annular projection of the first tube along the central axis. Still further, the joint includes one or more crimps positioned within the region.
F16L 13/14 - Raccords de tuyaux non démontables, p. ex. raccords soudés, collés ou matés réalisés par déformation plastique du matériau du tuyau, p. ex. par déformation des brides, par laminage
F16L 13/16 - Raccords de tuyaux non démontables, p. ex. raccords soudés, collés ou matés réalisés par déformation plastique du matériau du tuyau, p. ex. par déformation des brides, par laminage le raccord consistant en des extrémités se superposant et munies de collets en prise les uns avec les autres
70.
REFRIGERANT RECOVERY SYSTEM AND RECOVERY CART THEREOF
A refrigerant recovery system includes a refrigerant circuit with a vacuum pump, a first connection port, a second connection port, an exhaust port, and multiple-way valves that selectively fluidly connect said ports to the vacuum pump. The multiple-way valves have a first configuration, a second configuration, and a third configuration for fluidly connecting the ports to a suction inlet and a discharge outlet of the vacuum pump. A method is for recovering refrigerant from a refrigerant circuit using a refrigerant recovery system. The method includes operating the refrigerant recovery system in a liquid recovery configuration to transfer liquid refrigerant in an refrigerant circuit into one or more recovery cylinders and operating the refrigerant recovery system in a gas recovery configuration to transfer gaseous refrigerant in the refrigerant circuit into the one or more recovery cylinders. A recovery cart includes a transfer circuit of a refrigerant recovery system.
A method is for operating an expansion valve in a refrigerant circuit that includes a compressor, a condenser, the expansion valve, an evaporator, and a working fluid. The method includes determining a modified subcooling value based on a condenser working fluid discharge temperature, a condenser discharge subcooling setpoint, and one or more of a compressor discharge temperature and an evaporator approach temperature. The method also includes adjusting the expansion valve according to the modified subcooling value. A refrigerant circuit for a heating, ventilation, air conditioning, and refrigeration system includes a controller configured to operate the expansion valve according to a modified subcooling value.
A method is directed to controlling superheat in a refrigerant circuit containing working fluid. The method includes directing a suction stream of the working fluid from the evaporator through the suction heat exchanger and directing the working fluid compressed by the compressor to the suction heat exchanger. The method also includes controlling a flowrate of the compressed working fluid through the suction heat exchanger. The controlling includes modulating a working fluid control valve based on a determined target saturation temperature for the compressed working fluid. A refrigerant circuit includes a main flow path, a bypass flow path, a working fluid control valve, and a controller for the refrigerant circuit. The controller configured to determine a target saturation temperature for the working fluid flowing through the suction heat exchanger in the bypass flow path, and modulate the working fluid control valve based on the target saturation temperature.
TRANE AIR CONDITIONING SYSTEMS (CHINA) CO., LTD. (Chine)
TRANE INTERNATIONAL INC. (USA)
Inventeur(s)
Wang, Wuchao
Yu, Xiaorui
Zhao, Qingxuan
Abrégé
A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a suction adjust valve fluidly connecting an outlet of the evaporator to a suction port of the compressor. The suction adjust valve is to control a refrigerant flow from the outlet of the evaporator to the suction port of the compressor, and control a refrigerant pressure drop based on a result of monitoring at least one of (i) a refrigerant pressure difference at the expansion device and (ii) a refrigerant superheat downstream of the suction adjust valve.
TRANE AIR CONDITIONING SYSTEMS (CHINA) CO., LTD. (Chine)
TRANE INTERNATIONAL INC. (USA)
Inventeur(s)
Wan, Wang Shu
Sun, Ning
Wang, Min
Abrégé
An HVACR unit is disclosed. The HVACR unit includes a circuit having a compressor, a first heat exchanger, a second heat exchanger, and an expander. A heat exchanger assembly includes a fan and one of the first heat exchanger and the second heat exchanger, the fan being configured to draw air through the heat exchanger assembly for exchanging thermal energy with a working fluid in the circuit. The frame includes a unit support disposed on a base, the unit support being configured to laterally support the heat exchanger assembly, and the base being configured to vertically support the heat exchanger assembly. A forklift receptacle disposed in the HVACR unit, including one or more channels configured to respectively receive one or more tines of a forklift. The forklift receptacle is overlapped, in a longitudinal direction of the HVACR unit, with a center of mass of the HVACR unit.
A piping package is provided for connecting a heating, ventilation, air conditioning, and refrigeration (HVACR) system to a building variable air volume (VAV) system. The piping package includes an enclosure containing a supply pipe and a return pipe. Each of the supply pipe and the return pipe include an air vent and a blow-down valve. The piping package can be configured such that it is flip-able and can be positioned on either side of a main unit of the HVACR system. The piping package can further include a heat exchanger configured to exchange heat between the HVACR system and the process fluid distributed to the building VAV system.
A receiver assembly for a heat pump system is provided including a first receiver volume and a second receiver volume. The first receiver volume is configured to accommodate an amount of refrigerant based on a difference between a refrigerant charge for cooling operations of the heat pump system and a refrigerant charge for heating operations of the heat pump system. The second receiver volume has a first fluid connection configured to receive a hot gas injection and a second fluid connection. An expander is disposed along the second fluid connection. The receiver assembly further includes a fluid line configured to connect the first receiver volume and the second receiver volume and a controllable valve configured to regulate flow between the first receiver volume and the second receiver volume disposed along the fluid line.
Trane Air Conditioning Systems (China) Co. Ltd. (Chine)
Inventeur(s)
Shi, Ying
Stewart, Jeffrey L.
Abrégé
Examples of the present disclosure relate to systems and methods for incorporating an auxiliary heat exchanger into a refrigerant fluid circuit of a side-discharge outdoor unit of a climate control system, and operating the climate control system in combination with the auxiliary heat exchanger. The auxiliary heat exchanger may be configured to reduce refrigerant fluid temperatures at points in the refrigerant fluid circuit before reaching a primary outdoor heat exchanger of the outdoor unit. In general, available space along the top portion of an outdoor side-discharge unit may be utilized to house the auxiliary heat exchanger. In some examples, a bypass valve may be provided to include or exclude the auxiliary heat exchanger from the refrigerant fluid circuit during operation of the climate control system in various modes.
Examples of the present disclosure relate to systems and methods for monitoring the conditions that contribute to condensate formation along exterior surfaces of climate control systems and components thereof located in humid unconditioned spaces. Examples also relate to determining a likelihood of condensate formation and then providing measures to reduce or prevent condensate formation in the humid unconditioned space. Some examples for determining the conditions include utilizing temperature and humidity sensors with the climate control system and components thereof located in the humid unconditioned space. Some examples include monitoring conditions of the humid unconditioned space with sensors and then estimating conditions along the exterior component surfaces using calculations. Based on the conditions of the climate control system and of the unconditioned space the climate control system may operate with adjusted minimum settings to reduce the likelihood of condensate formation.
F24F 13/22 - Moyens pour éviter la condensation ou pour évacuer le condensat
F24F 11/65 - Traitement électronique pour la sélection d'un mode de fonctionnement
F24F 11/86 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des compresseurs dans les circuits de pompes à chaleur ou de réfrigération
79.
Systems and methods for detecting air filter fouling in a climate control system
Methods and related systems for operating a climate control system for an indoor space are disclosed. In an embodiment, the method includes increasing a speed of a fan of the climate control system, and determining a first fitted external static pressure (ESP) function from a first plurality of airflow values and a first plurality of ESP values. Additionally, the method includes obtaining a baseline ESP from the first fitted ESP function, and determining a second fitted ESP function from a second plurality of airflow values and a second plurality of ESP values collected at least one week after the first plurality of airflow values and the first plurality of ESP values are collected. Further, the method includes comparing the first calculated ESP obtained from the second fitted ESP function to the baseline ESP to determine a condition of an air filter of the climate control system.
F24F 11/39 - Surveillance de la performance des filtres
F24F 11/74 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de l’apport en air traité, p. ex. commande de la pression pour la commande du débit d'air ou de la vitesse de l’air
A scroll compressor includes a compressor housing containing an orbiting scroll member, a non-orbiting scroll member, a pair of bands disposed between the non-orbiting scroll member and the compressor housing, a suction chamber, a discharge chamber, and an intermediate injection chamber defined by the pair of bands. The non-orbiting scroll member includes an intermediate injection port fluidly connecting the intermediate injection chamber to at least one compression pocket formed by the intermeshed scroll members. A heating, ventilation, air conditioning, and refrigeration system including a refrigerant circuit with a condenser, at least one expander, an evaporator, and the scroll compressor fluidly connected. A method of making a scroll compressor includes placing an upper portion of a compressor housing over a non-orbiting scroll member with bands disposed therebetween, and interference fitting the upper portion onto the non-orbiting scroll member via the bands.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 2/02 - Machines ou pompes à piston rotatif du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
Methods are directed to on-site recovery and repurposing of refrigerant. The on-site recovery and/or repurposing recovers an original refrigerant and converts, in-situ, the original refrigerant into a converted refrigerant different from the original refrigerant. The converted refrigerant has a relatively lower global warming potential than the original refrigerant.
F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquidesDispositions pour la vaporisation des résidus de fluides frigorigènes, p. ex. par la chaleur
F25B 45/00 - Dispositions pour l'introduction ou l'évacuation du frigorigène
A scroll compressor includes a compressor housing containing an orbiting scroll member, a non-orbiting scroll member, bands disposed between the non-orbiting scroll member and the compressor housing, a suction chamber, a discharge chamber, and one or more intermediate injection chamber defined by the bands. The non-orbiting scroll member includes one or more intermediate injection ports fluidly connecting the one or more intermediate injection chambers to at least one compression pocket formed by the intermeshed scroll members. A heating, ventilation, air conditioning, and refrigeration system includes a refrigerant circuit with a condenser, an expander, an evaporator, and the scroll compressor fluidly connected. A method of making a scroll compressor includes placing an upper portion of a compressor housing over a non-orbiting scroll member with bands disposed therebetween, and interference fitting the upper portion onto the non-orbiting scroll member via the bands.
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 29/02 - LubrificationSéparation du lubrifiant
Methods and related systems for diagnosing a loss of capacity of a heating, ventilation, and air conditioning (HVAC) system are disclosed. In an embodiment, the method includes summing a runtime of an auxiliary heat source of the HVAC system over a plurality of time blocks. Additionally, the method includes summing an expected runtime of the auxiliary heat source over the plurality of time blocks. Further, the method includes comparing the runtime sum with the expected runtime sum, wherein the expected runtime for each of the plurality of time blocks is a function of an outdoor ambient temperature over a time-delay block beginning before the corresponding time block.
Methods and related systems for operating a climate control system for an indoor space are disclosed. In an embodiment, the method includes operating an indoor fan of the climate control system to rotate an impeller of the indoor fan in a reverse rotational direction opposite a nominal rotational direction of the impeller. Additionally, the method includes determining an airflow of the indoor fan when the impeller of the indoor fan is rotated in the reverse rotational direction. Further, the method includes determining a duct leakage rate associated with at least one duct of the climate control system based on the determined airflow, wherein the at least one duct is sealed-off at an end thereof.
G01M 3/28 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour tuyaux, câbles ou tubesExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour raccords ou joints d'étanchéité de tuyauxExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour soupapes
F24F 11/32 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p. ex. pour la sécurité ou la surveillance réagissant aux dysfonctionnements ou aux situations critiques
85.
Layered control panel design to provide separation of high/low voltage
A layered control panel for a heating, ventilation, air conditioning, and refrigeration (HVACR) unit includes an outer layer on which low-voltage components are placed, and an inner layer on which high-voltage components are placed. The outer layer is capable of taking a closed position where it blocks access to the inner layer, and an open position where the outer layer does not block access to the inner layer. The outer layer can include a lock to keep the outer layer in the closed position. The outer layer can be one or two or more panels mounted on hinges that allow the outer layer to swing between closed and open positions.
An air handler includes a housing with a heat exchanger core. The housing includes a faceplate, a roof panel, a base panel, a first side panel, and a second side panel. A first tunnel and a second tunnel are connected to the housing at the faceplate. A septum protrudes from the faceplate and connects the core at a front edge. The air handler further includes a first recirculation path and a second recirculation path inside the housing. The first and second recirculation paths are defined by the septum, the housing, and the core. The first and second recirculation paths are configured to direct a portion of airflow from the first tunnel to the second tunnel. The air handler further includes a first damper and a second damper disposed on the faceplate and configured to obstruct the first recirculation path and the second recirculation path respectively.
A compressor for a heat transfer circuit includes a variable frequency drive (VFD), an electric motor that rotates a driveshaft, bearing(s) for supporting the driveshaft, a backup gas supply, and a power supply. During a utility power interruption, the backup gas supply operates utilizing DC electrical power generated by a back electromotive force of the electric motor. A method of operating an electric power supply system for a compressor includes operating in a utility power mode and operating in a backup power mode during a utility power interruption. In the utility power mode, AC electrical power is supplied from the VFD to the motor. In the backup power mode, DC electrical power generated in the VFD by a back electromotive force of the motor it used to operate a backup gas supply to supply compressed working fluid to gas bearing(s) of the compressor.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
04 - Huiles et graisses industrielles; lubrifiants; combustibles
07 - Machines et machines-outils
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
36 - Services financiers, assurances et affaires immobilières
37 - Services de construction; extraction minière; installation et réparation
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Refrigerant; cleaning chemicals. Oils and lubricants. Compressors, electric motors for machines, and engines; generators, standby generators; and parts of the foregoing. Thermostats and controls; moitors; sensors; smart thermostats; building automation systems; software; software for managing HVAC and building automation systems; climate control systems; batteries; and parts of the foregoing; Photovoltaic solar panels for the production of electricity. Heating and cooling apparatus; air conditioners; heat pumps; heat exchangers; furnaces; air handlers; climate control systems; packaged heating and cooling systems; Chillers; rooftop units; variable refrigerant flow systems; Air purifiers; ventilators; humidifiers; dehumidifiers; water heaters; refrigeration units; lighting equipment; and parts of the foregoing. Financing services for heating, ventilating, and air conditioning systems; arranging of rebates and incentives for energy-efficient HVAC systems. Installation, maintenance, and repair of heating, ventilating, air conditioning, lighting, and building automation systems; HVAC system inspections; HVAC system cleaning; HVAC system tune-ups. Rental of heating, ventilating, and air conditioning apparatus; rental of chillers; rental of air handlers; provision of temporary HVAC equipment for events. Training services for technicians in the field of HVAC systems; providing online information and resources for the maintenance and repair of HVAC systems. Design and development of HVAC systems; energy efficiency consulting services; integration of building automation systems; online non-downloadable software for managing HVAC and building automation systems; Design of solar photovoltaic systems; and Technical planning of photovoltaic/solar thermal hybrid installations.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
04 - Huiles et graisses industrielles; lubrifiants; combustibles
07 - Machines et machines-outils
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
36 - Services financiers, assurances et affaires immobilières
37 - Services de construction; extraction minière; installation et réparation
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Refrigerant; cleaning chemicals. Oils and lubricants. Compressors, electric motors for machines, and engines; generators, standby generators; and parts of the foregoing. Thermostats and controls; monitors; sensors; smart thermostats; building automation systems; software; software for managing HVAC and building automation systems; climate control systems; batteries; and parts of the foregoing; Photovoltaic solar panels for the production of electricity. Heating and cooling apparatus; air conditioners; heat pumps; heat exchangers; furnaces; air handlers; climate control systems; packaged heating and cooling systems; Chillers; rooftop units; variable refrigerant flow systems; Air purifiers; ventilators; humidifiers; dehumidifiers; water heaters; refrigeration units; lighting equipment; and parts of the foregoing. Financing services for heating, ventilating, and air conditioning systems; arranging of rebates and incentives for energy-efficient HVAC systems. Installation, maintenance, and repair of heating, ventilating, air conditioning, lighting, and building automation systems; HVAC system inspections; HVAC system cleaning; HVAC system tune-ups. Rental of heating, ventilating, and air conditioning apparatus; rental of chillers; rental of air handlers; provision of temporary HVAC equipment for events. Training services for technicians in the field of HVAC systems; providing online information and resources for the maintenance and repair of HVAC systems. Design and development of HVAC systems; energy efficiency consulting services; integration of building automation systems; online non-downloadable software for managing HVAC and building automation systems; Design of solar photovoltaic systems; and Technical planning of photovoltaic/solar thermal hybrid installations.
An air handling unit (AHU) for a heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a housing and a combustion heater disposed within the housing. The housing includes a combustion section with a first channel and a second channel. The combustion heater includes heat exchanger tubes and a tube support that supports heat exchanger tubes within the combustion section. The tube support slidably disposed in the first channel and the second channel. The combustion heater configured to be slidably removable from the AHU. An AHU for an HVACR system includes a housing with a fan section and a fan assembly disposed within the housing. The fan assembly including a pair of grooves slidably disposed on a pair of rails of the housing. The fan assembly configured to be both slidably removable from the AHU and liftably removable from the AHU.
F24H 3/08 - Appareils de chauffage d'air à circulation forcée l'air étant maintenu séparé de l'agent chauffant, p. ex. par circulation forcée de l'air sur des radiateurs par tubes
F23D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
F24H 9/06 - Disposition des fixations ou des supports
F24H 9/1854 - Disposition ou montage des grilles ou des éléments chauffants pour appareils de chauffage d’air
91.
PRIORITIZNG EFFICIENT OPERATION OVER SATISFYING AN OPERATIONAL DEMAND
Architectures or techniques are presented that can prioritize operating a consumption device in a manner that is efficient in terms of consumption of a resource over satisfying a specified demand assigned to the consumption device. This re-prioritizing can be performed in response to a price of the resource exceeding a threshold.
Methods and related systems of detecting a temperature deviation in a heat exchanger coil of a climate control system are disclosed. In an embodiment, the method includes determining an enthalpy of the indoor space. In addition, the method includes detecting a coil temperature of the heat exchanger. Further, the method includes detecting a coil temperature deviation based on the enthalpy and the detected coil temperature.
F24F 11/83 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur
An apparatus and method for controlling the conditioning mode of a climate control device, such as a rooftop unit, that is servicing multiple connected terminal unit. The improved process may include determining a conditioning mode error for the connected terminal units. The conditioning mode error may be an integrated error value that is based on a temperature deviation integrated over the duration of the temperature deviation. The process may also determine a cooling mode error and a heating mode error. The cooling mode error and the heating mode error may be based on the conditioning mode error for the terminal units associated with cooling conditions and heating conditions, respectively. The process may further compare the cooling mode error and the heating mode error, and it may also adjust the conditioning mode of the climate control device based on the comparison.
F24F 11/67 - Basculement entre les modes de chauffage et de refroidissement
F24F 11/32 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p. ex. pour la sécurité ou la surveillance réagissant aux dysfonctionnements ou aux situations critiques
F24F 11/523 - Aménagements pour l’indication, p. ex. écrans pour l’affichage de la température
F24F 11/64 - Traitement électronique utilisant des données mémorisées au préalable
F24F 11/83 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur
94.
REACTIVE NETWORK SECURITY FOR A BUILDING AUTOMATION SYSTEM
A method provides reactive network security of a building automation system that includes a controller and a network of electronic devices connected in electronic communication. The method includes monitoring, by the controller, external electronic communications received by the network. The monitoring includes comparing, by the controller, a traffic property of the external electronic communications to a corresponding baseline traffic property. The method also includes instituting a traffic communication protocol based on said comparison. Said instituting of the traffic communication protocol causes one or more of restricting of type of incoming external electronic communication to the network, using a virtual private network to communicate within the network, and encrypting of the electronic communication within the network. A building automation system includes a controller, a plurality of electronic devices, and a network. The plurality of electronic devices and the controller are in electronic communication via the network.
A lubricant supply system is for a compressor that compresses a first working fluid in a heat transfer circuit. The lubricant supply system includes a lubricant tank, a lubricant pathway for supplying lubricant from the lubricant tank to one or more bearings of the compressor, and a lubricant refrigeration system with a lubricant heater and a lubricant cooler. The lubricant heater configured to heat the lubricant discharged from the one or more bearings and the lubricant cooler configured to cool the lubricant flowing through the lubricant pathway. A method of lubricating a compressor includes heating the lubricant, directing the lubricant from a lubricant tank through a lubricant pathway to one or more bearings of the compressor, and cooling the lubricant passing through the lubricant pathway.
There is disclosed a reversible heat pump system 100 and a method of operating a reversible heat pump system to control the temperature of a process fluid of a chiller system 500. In a cooling mode, a working fluid is circulated for co-current flow with a process fluid at a heat exchanger 104 functioning as an evaporator heat exchanger, whereas in a heating mode, the working fluid is circulated for counter-current flow with the process fluid at the same heat exchanger 104 functioning as a condenser heat exchanger.
According to an embodiment of the present disclosure, an apparatus includes a transformer having a set of input terminals, a first set of output terminals, and a second set of output terminals. First and second rectifiers are coupled to the first and second sets of output terminals, respectively. The transformer is configured to transform three phase alternating current (AC) provided to the set of input terminals into first and second three phase AC outputs at the first and second sets of output terminals, respectively. The first three phase AC output is phase shifted from the second three phase AC output.
H02P 23/04 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur spécialement adaptés pour amortir les oscillations des moteurs, p. ex. pour la réduction du pompage
H02P 25/18 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de moteur ou par des détails de structure caractérisés par des dispositions de circuit ou par le type de câblage avec des dispositions pour la commutation des enroulements, p. ex. par des interrupteurs mécaniques ou des relais
H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
An oil-free compressor includes a compressor housing with a suction inlet and a discharge outlet, a compression mechanism and a liquid-vapor separation volume disposed within the compressor housing, a crankshaft. The compression mechanism has an inlet fluidly connected to the suction inlet and a discharge volume fluidly connected to the discharge outlet. The crankshaft is engaged with the compression mechanism. The liquid-vapor separation volume is configured to separate a mixed phase of working fluid into liquid working fluid and gaseous working fluid. The liquid working fluid is supplied to the bearing. A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a refrigerant circuit with an oil-free compressor, a condenser, one or more expanders, and an evaporator.
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 29/02 - LubrificationSéparation du lubrifiant
F25B 1/04 - Machines, installations ou systèmes à compression à cycle irréversible à compresseur rotatif
99.
Devices, systems, and methods for reducing leakage current in power converters
Devices, systems, and methods are disclosed for reducing leakage current in power converters, such as for HVAC systems, to facilitate compatibility with GFCI devices. In various embodiments, the power converter may include components to filter and/or reduce common mode noise, such as by removing high frequency components of the common mode noise, while maintaining leakage current below a trip threshold of a GFCI device.
H02M 7/04 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques
H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
H02M 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
100.
Tunable acoustic metamaterials for sound dampening of HVAC equipment
Example embodiments of the present disclosure relate to improved sound attenuation configurations and methods of manufacturing the same. An example embodiment includes a low noise climate control device. This device may include a housing and a noise producing component within the housing. Further, the device may include an acoustic metamaterial stack arranged in the housing. The acoustic metamaterial stack may include a perforated layer arranged over a spacer layer, and the spacer layer arranged over another perforated layer. Each of the perforated layers may include a plurality of perforations creating a percentage of open area (POA). The perforated layers may further include set(s) of sheets that each including a plurality of openings. These set(s) of sheets may be arranged such that the plurality of openings in the sheets for each perforated layer are coordinate to create the plurality of perforations in each of the perforated layers.
F24F 13/24 - Moyens pour éviter ou supprimer le bruit
B32B 3/26 - Produits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche continue dont le périmètre de la section droite a une allure particulièreProduits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche comportant des cavités ou des vides internes
B32B 3/30 - Produits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche continue dont le périmètre de la section droite a une allure particulièreProduits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche comportant des cavités ou des vides internes caractérisés par une couche comportant des retraits ou des saillies, p. ex. des gorges, des nervures
B32B 15/08 - Produits stratifiés composés essentiellement de métal comprenant un métal comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique de résine synthétique
