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Title: Realistic evaluation of fuel enthalpy during reactivity-initiated accidents in PWRs

Abstract

In recent years, reactivity-initiated accident (RIA) simulation experiments using preirradiated fuels have been widely conducted in the NSRR in Japan and the CABRI reactor in France. Although the dependency of fuel failure on burnup has not been clearly determined so far, it is suggested that the failure threshold of irradiated fuel may be decreased compared with that of fresh fuel. The objective of this study is to confirm the conservatism in the current safety analysis and to evaluate the effect of the decrease in the threshold. The current safety analysis for a rod ejection accident for a pwr reactor at the end-of-cycle hot zero power (HZP) is summarized.

Authors:
; ;  [1]; ;  [2]
  1. Kansai Electric Power Co., Osaka (Japan)
  2. Mitsubishi Heavy Industries, Ltd., Yokohama (Japan)
Publication Date:
OSTI Identifier:
436958
Report Number(s):
CONF-9606116-
Journal ID: TANSAO; ISSN 0003-018X; TRN: 96:005275-0195
Resource Type:
Journal Article
Journal Name:
Transactions of the American Nuclear Society
Additional Journal Information:
Journal Volume: 74; Conference: Annual meeting of the American Nuclear Society (ANS), Reno, NV (United States), 16-20 Jun 1996; Other Information: PBD: 1996
Country of Publication:
United States
Language:
English
Subject:
22 NUCLEAR REACTOR TECHNOLOGY; 21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; PWR TYPE REACTORS; ROD EJECTION ACCIDENTS; SIMULATION; BURNUP; SAFETY ANALYSIS; REACTOR SAFETY

Citation Formats

Nunogane, N, Uchida, T, Morimoto, K, Nakajima, A, and Homma, K. Realistic evaluation of fuel enthalpy during reactivity-initiated accidents in PWRs. United States: N. p., 1996. Web.
Nunogane, N, Uchida, T, Morimoto, K, Nakajima, A, & Homma, K. Realistic evaluation of fuel enthalpy during reactivity-initiated accidents in PWRs. United States.
Nunogane, N, Uchida, T, Morimoto, K, Nakajima, A, and Homma, K. Tue . "Realistic evaluation of fuel enthalpy during reactivity-initiated accidents in PWRs". United States.
@article{osti_436958,
title = {Realistic evaluation of fuel enthalpy during reactivity-initiated accidents in PWRs},
author = {Nunogane, N and Uchida, T and Morimoto, K and Nakajima, A and Homma, K},
abstractNote = {In recent years, reactivity-initiated accident (RIA) simulation experiments using preirradiated fuels have been widely conducted in the NSRR in Japan and the CABRI reactor in France. Although the dependency of fuel failure on burnup has not been clearly determined so far, it is suggested that the failure threshold of irradiated fuel may be decreased compared with that of fresh fuel. The objective of this study is to confirm the conservatism in the current safety analysis and to evaluate the effect of the decrease in the threshold. The current safety analysis for a rod ejection accident for a pwr reactor at the end-of-cycle hot zero power (HZP) is summarized.},
doi = {},
journal = {Transactions of the American Nuclear Society},
number = ,
volume = 74,
place = {United States},
year = {1996},
month = {12}
}