CANDU core analysis with spent PWR fuel of fixed {sup 235}U and {sup 239}Pu content

Journal Article · Mon Dec 01 04:00:00 EST 1997 · Transactions of the American Nuclear Society

OSTI ID:552601

Choi, Hangbok; Roh, Gyu H; Park, J W ^[1]

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1. Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

The direct use of spent pressurized water reactor (PWR) fuel in a CANDU (DUPIC) fuel cycle requires that the spent PWR fuel be refabricated as a DUPIC fuel to be used in a CANDU reactor that was originally designed for the natural uranium fuel. Because there is no separation of isotopes from the spent PWR fuel, the DUPIC fuel contains all the actinides and fission products as fuel constituents and, therefore, the isotopic composition changes depending on the initial and discharge conditions of PWR fuels. Such heterogeneity in fuel composition is not desirable, especially for a CANDU reactor that adopts an on-power refueling scheme, because the operational flexibility is reduced appreciably if the fuel bundles of different composition are loaded throughout the core.

• OSTI ID: 552601
• Report Number(s): CONF-971125--
• Journal Information: Transactions of the American Nuclear Society, Journal Name: Transactions of the American Nuclear Society Vol. 77; ISSN TANSAO; ISSN 0003-018X
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
CANDU TYPE REACTORS
NATURAL URANIUM
PLUTONIUM 239
REACTOR CORES
URANIUM 235