公开(公告)号：US11705249B2

公开(公告)日：2023-07-18

申请号：US17838928

申请日：2022-06-13

申请人： CLEAN CORE THORIUM ENERGY LLC

发明人： Mehul Shah ,  Rida Milany ,  Koroush Shirvan

IPC分类号： G21C3/326 ,  G21C3/58 ,  G21C3/04 ,  G21C3/328 ,  G21C1/08

CPC分类号： G21C3/3265 ,  G21C3/045 ,  G21C3/048 ,  G21C3/328 ,  G21C3/58 ,  G21C1/086

摘要： Thorium-based fuel bundles according to one or more embodiments of the present invention are used in existing PHWR reactors (e.g., Indian 220 MWe PHWR, Indian 540 MWe PHWR, Indian 700 MWe PHWR, CANDU 300/600/900) in place of conventional uranium-based fuel bundles, with little or no modifications to the reactor. The fuel composition of such bundles is 60+ wt % thorium, with the balance of fuel provided by low-enriched uranium (LEU), which has been enriched to 13-19.95% 235U. According to various embodiments, the use of such thorium-based fuel bundles provides (1) 100% of the nominal power over the entire life cycle of the core, (2) high burnup, and (3) non-proliferative spent fuel bundles having a total isotopic uranium concentration of less than 12 wt %. Reprocessing of spent fuel bundles is also avoided.

公开(公告)号：US12080436B2

公开(公告)日：2024-09-03

申请号：US18210437

申请日：2023-06-15

申请人： CLEAN CORE THORIUM ENERGY LLC

发明人： Mehul Shah ,  Rida Milany ,  Koroush Shirvan

IPC分类号： G21C3/326 ,  G21C3/328 ,  G21C1/08 ,  G21C3/04 ,  G21C3/58

CPC分类号： G21C3/3265 ,  G21C3/328 ,  G21C1/086 ,  G21C3/045 ,  G21C3/048 ,  G21C3/58

摘要： Thorium-based fuel bundles according to one or more embodiments of the present invention provide a fresh fuel bundle comprising a first ring of fuel pins and a second ring of fuel pins. Each ring fuel pin has a fuel composition comprising uranium and thorium. The first ring fuel pins differ from the second ring fuel pins in each of the thorium wt %, uranium wt %, and 235U enrichment.

公开(公告)号：US11929183B2

公开(公告)日：2024-03-12

申请号：US18195112

申请日：2023-05-09

申请人： CLEAN CORE THORIUM ENERGY LLC

发明人： Mehul Shah ,  Rida Milany ,  Koroush Shirvan

IPC分类号： G21C3/326 ,  G21C3/04 ,  G21C3/328 ,  G21C3/58 ,  G21C1/08

CPC分类号： G21C3/3265 ,  G21C3/045 ,  G21C3/048 ,  G21C3/328 ,  G21C3/58 ,  G21C1/086

摘要： Thorium-based fuel bundles according to one or more embodiments of the present invention are used in existing PHWR reactors (e.g., Indian 220 MWe PHWR, Indian 540 MWe PHWR, Indian 700 MWe PHWR, CANDU 300/600/900) in place of conventional uranium-based fuel bundles, with little or no modifications to the reactor. The fuel composition of such bundles is 60+ wt % thorium, with the balance of fuel provided by low-enriched uranium (LEU), which has been enriched to 13-19.95% 235U. According to various embodiments, the use of such thorium-based fuel bundles provides (1) 100% of the nominal power over the entire life cycle of the core, (2) high burnup, and (3) non-proliferative spent fuel bundles having a total isotopic uranium concentration of less than 12 wt %. Reprocessing of spent fuel bundles is also avoided.