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Title: Anticipated transients without scram for light water reactors: implications for liquid metal fast breeder reactors

Abstract

The proposed ATWS acceptance criteria for LWRs (as specified in NUREG-0460) are in principle, applicable to LMFBRs. For LMFBRs, the major criterion will be the assurance that the plant protection system (shutdown or scram) has a sufficiently high reliability (low failure rate) so that core disruptive accidents (as currently defined) will lie outside the design basis. For early plants, however, mitigating systems may also be required. Alternative accident scenarios for LMFBRs, which are initiated from the shutdown state or may lead to potential core disruptive accidents even following scram, need to be examined in greater detail. The proposed LWR-ATWS criteria do not appear to present any new or unforeseen design and/or safety questions for LMFBRs. They do, however, specify design goals for mitigating systems which may insure conformance with NRC policy. Preliminary recommendations are made for future research and evaluation.

Authors:
;
Publication Date:
Research Org.:
RAND Corp., Santa Monica, CA (USA)
OSTI Identifier:
5906037
Report Number(s):
RAND-2457-DOE
ON: DE81026702; TRN: 82-000596
DOE Contract Number:  
AC03-77SF01465
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; CLINCH RIVER BREEDER REACTOR; ATWS; LMFBR TYPE REACTORS; COMPARATIVE EVALUATIONS; DESIGN; REACTOR CORE DISRUPTION; REACTOR SAFETY; REGULATIONS; US NRC; WATER COOLED REACTORS; ACCIDENTS; BREEDER REACTORS; EPITHERMAL REACTORS; FAST REACTORS; FBR TYPE REACTORS; LIQUID METAL COOLED REACTORS; NATIONAL ORGANIZATIONS; POWER REACTORS; REACTOR ACCIDENTS; REACTORS; SAFETY; SODIUM COOLED REACTORS; US ORGANIZATIONS; 220900* - Nuclear Reactor Technology- Reactor Safety; 210500 - Power Reactors, Breeding

Citation Formats

Kastenberg, W E, and Solomon, K A. Anticipated transients without scram for light water reactors: implications for liquid metal fast breeder reactors. United States: N. p., 1979. Web. doi:10.2172/5906037.
Kastenberg, W E, & Solomon, K A. Anticipated transients without scram for light water reactors: implications for liquid metal fast breeder reactors. United States. doi:10.2172/5906037.
Kastenberg, W E, and Solomon, K A. Thu . "Anticipated transients without scram for light water reactors: implications for liquid metal fast breeder reactors". United States. doi:10.2172/5906037. https://www.osti.gov/servlets/purl/5906037.
@article{osti_5906037,
title = {Anticipated transients without scram for light water reactors: implications for liquid metal fast breeder reactors},
author = {Kastenberg, W E and Solomon, K A},
abstractNote = {The proposed ATWS acceptance criteria for LWRs (as specified in NUREG-0460) are in principle, applicable to LMFBRs. For LMFBRs, the major criterion will be the assurance that the plant protection system (shutdown or scram) has a sufficiently high reliability (low failure rate) so that core disruptive accidents (as currently defined) will lie outside the design basis. For early plants, however, mitigating systems may also be required. Alternative accident scenarios for LMFBRs, which are initiated from the shutdown state or may lead to potential core disruptive accidents even following scram, need to be examined in greater detail. The proposed LWR-ATWS criteria do not appear to present any new or unforeseen design and/or safety questions for LMFBRs. They do, however, specify design goals for mitigating systems which may insure conformance with NRC policy. Preliminary recommendations are made for future research and evaluation.},
doi = {10.2172/5906037},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {2}
}