HTGR spent fuel composition and fuel element block flow
The High-Temperature Gas-Cooled Reactor (HTGR) utilizes the thorium-uranium fuel cycle. Fully enriched uranium fissile material and thorium fertile material are used in the initial reactor core and for makeup fuel in the recycle core loadings. Bred /sup 233/U and unburned /sup 235/U fissile materials are recovered from spent fuel elements, refabricated into recycle fuel elements, and used as part of the recycle core loading along with the makeup fuel elements. A typical HTGR employs a 4-yr fuel cycle with approximately one-fourth of the core discharged and reloaded annually. The fuel element composition, including heavy metals, impurity nuclides, fission products, and activation products, has been calculated for discharged spent fuel elements and for reload fresh fuel and recycle fuel elements for each cycle over the life of a typical HTGR. Fuel element compositions are presented for the conditions of equilibrium recycle. Data describing compositions for individual reloads throughout the reactor life are available in a detailed volume upon request. Fuel element block flow data have been compiled based on a forecast HTGR market. Annual block flows are presented for each type of fuel element discharged from the reactors for reprocessing and for refabrication.
- Research Organization:
- General Atomic Co., San Diego, Calif. (USA)
- DOE Contract Number:
- E(04-3)-167
- OSTI ID:
- 7157851
- Report Number(s):
- GA-A-13886(Vol.1)
- Country of Publication:
- United States
- Language:
- English
Similar Records
Neutronic values of U-233 and U-236 in the HTGR
Material control and accountability aspects of safeguards for the USA /sup 233/U/TH fuel recycle plant
Related Subjects
210300* -- Power Reactors
Nonbreeding
Graphite Moderated
CHEMICAL COMPOSITION
FUEL CYCLE
FUEL ELEMENTS
FUEL MANAGEMENT
GAS COOLED REACTORS
GRAPHITE MODERATED REACTORS
HTGR TYPE REACTORS
REACTOR COMPONENTS
REACTOR FUELING
REACTORS
SPENT FUEL ELEMENTS