-
公开(公告)号：US11710578B2
公开(公告)日：2023-07-25
申请号：US17399881
申请日：2021-08-11
发明人： Eric A. Barringer , Russell R. Jensen , Jeremy L. Gustafson , Matt Ales , Joshua J. Bergman , Ryan T. Swanson , Jonathan K. Witter , Danny Galicki , James B. Inman , Matt Krecicki , Roger Ridgeway
摘要： Carbide-based fuel assembly includes outer structural member of ceramic matrix composite material (e.g., SiC—SiC composite), insulation layer of porous refractory ceramic material (e.g., zirconium carbide with open-cell foam structure or fibrous zirconium carbide), and interior structural member of refractory ceramic-graphite composite material (e.g., zirconium carbide-graphite or niobium carbide-graphite). Spacer structures between various layers provide a defined and controlled spacing relationship. A fuel element bundle positioned between support meshes includes a plurality of distributively arranged fuel elements or a solid, unitary fuel element with coolant channels, each having a fuel composition including high assay, low enriched uranium (HALEU). Fuel assemblies are distributively arranged in a moderator block and the upper end of the outer structural member is attached to a metallic inlet tube for hydrogen propellant and the lower end of the outer structural member is interfaced with a support plate, forming a nuclear thermal propulsion reactor.
-
公开(公告)号：US11728044B2
公开(公告)日：2023-08-15
申请号：US17399822
申请日：2021-08-11
发明人： Eric A. Barringer , Russell R. Jensen , Jeremy L. Gustafson , Matt Ales , Joshua J. Bergman , Ryan T. Swanson , Jonathan K. Witter , Danny Galicki , James B. Inman , Matt Krecicki , Roger Ridgeway
摘要： Carbide-based fuel assembly includes outer structural member of ceramic matrix composite material, the interior surface of which is lined in higher temperature regions with an insulation layer of porous refractory ceramic material. Continuous insulation layer extends the length of the fuel assembly or separate insulation layer sections have a thickness increasing step-wise along the length of the fuel assembly from upper (inlet) section towards bottom (outlet) section. A fuel element positioned inward of the insulation layer and between support meshes has a fuel composition including HALEU and the form of a plurality of individual elongated fuel bodies or one or more fuel monolith bodies containing coolant flow channels. Fuel assemblies are distributively arranged in a moderator block, with upper end of the outer structural member attached to an inlet for propellant and lower end of the outer structural member operatively interfaced with a nozzle forming a nuclear thermal propulsion reactor.
-
搜索结果
2 条记录 (耗时 0.017 秒)
