Fuel elements having distinct zones or concentration gradients of fuel material along the axial direction, the radial direction, or both the axial and radial direction. An additive manufacturing process may be used to produce the fuel elements. The additive manufacturing process may facilitate production of the distinct zone or concentration gradient arrangement of the fuel elements, and may further allow both fuel and non-fuel material to be incorporated into any of the zones or within the gradients.
G21C 3/326 - Bundles of parallel pin-, rod-, or tube-shaped fuel elements comprising fuel elements of different compositionComprising, in addition to the fuel elements, other pin-, rod-, or tube-shaped elements, e.g. control rods, grid support rods, fertile rods, poison rods or dummy rods
B33Y 80/00 - Products made by additive manufacturing
G21C 21/02 - Manufacture of fuel elements or breeder elements contained in non-active casings
Fuel elements having distinct zones or concentration gradients of fuel material along the axial direction, the radial direction, or both the axial and radial direction. An additive manufacturing process may be used to produce the fuel elements. The additive manufacturing process may facilitate production of the distinct zone or concentration gradient arrangement of the fuel elements, and may further allow both fuel and non-fuel material to be incorporated into any of the zones or within the gradients.
G21C 3/326 - Bundles of parallel pin-, rod-, or tube-shaped fuel elements comprising fuel elements of different compositionComprising, in addition to the fuel elements, other pin-, rod-, or tube-shaped elements, e.g. control rods, grid support rods, fertile rods, poison rods or dummy rods
Fuel elements having distinct zones or concentration gradients of fuel material along the axial direction, the radial direction, or both the axial and radial direction. An additive manufacturing process may be used to produce the fuel elements. The additive manufacturing process may facilitate production of the distinct zone or concentration gradient arrangement of the fuel elements, and may further allow both fuel and non-fuel material to be incorporated into any of the zones or within the gradients.
G21C 3/16 - Details of the construction within the casing
G21C 3/326 - Bundles of parallel pin-, rod-, or tube-shaped fuel elements comprising fuel elements of different compositionComprising, in addition to the fuel elements, other pin-, rod-, or tube-shaped elements, e.g. control rods, grid support rods, fertile rods, poison rods or dummy rods
G21C 21/02 - Manufacture of fuel elements or breeder elements contained in non-active casings
01 - Chemical and biological materials for industrial, scientific and agricultural use
35 - Advertising and business services
Goods & Services
Nuclear fuel, namely, fuel for nuclear reactors Marketing services of nuclear fuel for others; wholesale distributorships featuring nuclear fuel in the nature of fuel for nuclear reactors
01 - Chemical and biological materials for industrial, scientific and agricultural use
35 - Advertising and business services
Goods & Services
Nuclear fuel, namely, fuel for nuclear reactors Marketing services of nuclear fuel for others; wholesale distributorships featuring nuclear fuel in the nature of fuel for nuclear reactors
A fuel assembly for use in a core of a nuclear power reactor. The assembly includes a frame shaped and configured to fit within the nuclear reactor internal core structure; and a plurality of helically twisted fuel elements supported by the frame in a fuel rod bundle. Each of the fuel elements includes fissile material. When viewed in a cross-section that is perpendicular to an axial direction of the fuel assembly, the outermost fuel elements of the fuel rod bundle define a substantially circular perimeter. Other features, and a nuclear reactor, are also described.
A fuel assembly for use in a core of a nuclear power reactor. The assembly includes a frame shaped and configured to fit within the nuclear reactor internal core structure; and a plurality of helically twisted fuel elements supported by the frame in a fuel rod bundle. Each of the fuel elements includes fissile material. When viewed in a cross-section that is perpendicular to an axial direction of the fuel assembly, the outermost fuel elements of the fuel rod bundle define a substantially circular perimeter. Other features, and a nuclear reactor, are also described.
A fuel assembly for use in a core of a nuclear power reactor. The assembly includes a plurality of helically twisted fuel elements supported by a frame in a fuel rod bundle. Each of the fuel elements includes fissile material. When viewed in a cross-section that is perpendicular to an axial direction of the fuel assembly, the outermost fuel elements of the fuel rod bundle define a substantially circular perimeter. The fuel elements are arranged in a mixed grid pattern that includes a first, rectangular grid pattern and a second, triangular grid pattern.
G21C 3/328 - Relative disposition of the elements in the bundle lattice
G21C 1/20 - Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being substantially not pressurised, e.g. swimming-pool reactor moderator and coolant being different or separated, e.g. sodium-graphite reactor coolant being pressurised moderator being liquid, e.g. pressure-tube reactor
G21C 3/08 - CasingsJackets provided with external means to promote heat-transfer, e.g. fins, baffles, corrugations
G21C 3/322 - Means to influence the coolant flow through or around the bundles
G21C 3/326 - Bundles of parallel pin-, rod-, or tube-shaped fuel elements comprising fuel elements of different compositionComprising, in addition to the fuel elements, other pin-, rod-, or tube-shaped elements, e.g. control rods, grid support rods, fertile rods, poison rods or dummy rods
G21C 21/10 - Manufacture of fuel elements or breeder elements contained in non-active casings by extrusion, drawing, or stretching
G21C 3/28 - Fuel elements with fissile or breeder material in solid form within a non-active casing
42 - Scientific, technological and industrial services, research and design
Goods & Services
Custom design of nuclear fuel fabrication facilities; development and establishment of testing specifications and procedures in the field of nuclear fuel
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
45 - Legal and security services; personal services for individuals.
Goods & Services
Consulting services in the field of construction of nuclear energy facilities Consulting services in the field of production of nuclear energy Custom design of nuclear fuel fabrication facilities; design and testing of nuclear fuel; research and development of technology in the field of nuclear fuel; scientific research and development; technology consultation and research in the field of nuclear energy; development and establishment of testing specifications and procedures in the field of nuclear fuel Consulting services in the area of nuclear regulatory processes
01 - Chemical and biological materials for industrial, scientific and agricultural use
35 - Advertising and business services
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
45 - Legal and security services; personal services for individuals.
Goods & Services
Nuclear fuel. Marketing and sale of nuclear fuel. Consulting services in the field of construction of nuclear energy facilities. Consulting services in the field of production of nuclear energy; consulting services in the area of nuclear regulatory processes; design and testing of nuclear fuel; design of nuclear fuel fabrication facilities; research and development in the field of nuclear fuel; scientific research and development; technology consultation and research in the field of nuclear energy; technical planning of nuclear energy based power plants. Licensing and sale of nuclear fuel technology.
01 - Chemical and biological materials for industrial, scientific and agricultural use
35 - Advertising and business services
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
45 - Legal and security services; personal services for individuals.
Goods & Services
Nuclear fuel. Marketing and sale of nuclear fuel. Consulting services in the field of construction of nuclear energy facilities. Consulting services in the field of production of nuclear energy; consulting services in the area of nuclear regulatory processes; design and testing of nuclear fuel; design of nuclear fuel fabrication facilities; research and development in the field of nuclear fuel; scientific research and development; technology consultation and research in the field of nuclear energy; technical planning of nuclear energy based power plants. Licensing and sale of nuclear fuel technology.
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
45 - Legal and security services; personal services for individuals.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Consulting services in the field of construction of nuclear energy facilities Consulting services in the field of production of nuclear energy Consulting services in the area of nuclear regulatory processes Design and testing of nuclear fuel; research and development of technology in the field of nuclear fuel; scientific research and development; technology consultation and research in the field of nuclear energy; engineering services in the nature of technical planning of nuclear energy based power plants
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
45 - Legal and security services; personal services for individuals.
Goods & Services
Consulting services in the field of construction of nuclear energy facilities Consulting services in the field of production of nuclear energy Design and testing of nuclear fuel; research and development of technology in the field of nuclear fuel; scientific research and development; technology consultation and research in the field of nuclear energy; engineering services in the nature of technical planning of nuclear energy based power plants Consulting services in the area of nuclear regulatory processes
