Core damage frequency prespectives for BWR 3/4 and Westinghouse 4-loop plants based on IPE results

Title: Core damage frequency prespectives for BWR 3/4 and Westinghouse 4-loop plants based on IPE results

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Abstract

This paper discusses the core damage frequency (CDF) insights gained by analyzing the results of the Individual Plant Examinations (IPES) for two groups of plants: boiling water reactor (BWR) 3/4 plants with Reactor Core Isolation Cooling systems, and Westinghouse 4-loop plants. Wide variability was observed for the plant CDFs and for the CDFs of the contributing accident classes. On average, transients-with loss of injection, station blackout sequences, and transients with loss of decay heat removal are important contributors for the BWR 3/4 plants, while transients, station blackout sequences, and loss-of-coolant accidents are important for the Westinghouse 4-loop plants. The key factors that contribute to the variability in the results are discussed. The results are often driven by plant-specific design and operational characteristics, but differences in modeling approaches are also important for some accident classes.

Authors:

Dingman, S.; Camp, S. ^[1]; LaChance, J. ^[2]; Mary Drouin ^[3]

Sandia National Labs., Albuquerque, NM (United States)
Science Applications International Corp., (United States)
Nuclear Regulatory Commission, Washington, DC (United States)

Publication Date:: 1996-12-31

Research Org.:: Sandia National Labs., Albuquerque, NM (United States)

Sponsoring Org.:: USDOE, Washington, DC (United States); Nuclear Regulatory Commission, Washington, DC (United States)

OSTI Identifier:: 205567

Report Number(s):: SAND-95-3028C; CONF-9510156-9
ON: DE96004182; TRN: 96:008534

DOE Contract Number:: AC04-94AL85000

Resource Type:: Conference

Resource Relation:: Conference: 23. water reactor safety information meeting, Bethesda, MD (United States), 23-25 Oct 1995; Other Information: PBD: [1995]

Country of Publication:: United States

Language:: English

Subject:: 22 NUCLEAR REACTOR TECHNOLOGY; 21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; BWR TYPE REACTORS; REACTOR ACCIDENTS; PWR TYPE REACTORS; REACTOR CORES; DAMAGE; OUTAGES; LOSS OF COOLANT; AFTER-HEAT REMOVAL; HEAT TRANSFER; HYDRAULICS; REACTOR SAFETY; TRANSIENTS

Citation Formats


                    Dingman, S., Camp, S., LaChance, J., and Mary Drouin. Core damage frequency prespectives for BWR 3/4 and Westinghouse 4-loop plants based on IPE results.  United States: N. p., 1995. 
        Web.

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                    Dingman, S., Camp, S., LaChance, J., & Mary Drouin. Core damage frequency prespectives for BWR 3/4 and Westinghouse 4-loop plants based on IPE results.  United States.

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                    Dingman, S., Camp, S., LaChance, J., and Mary Drouin. Sun .  
        "Core damage frequency prespectives for BWR 3/4 and Westinghouse 4-loop plants based on IPE results".  United States.  
        doi:.  https://www.osti.gov/servlets/purl/205567.

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@article{osti_205567,

  title        = {Core damage frequency prespectives for BWR 3/4 and Westinghouse 4-loop plants based on IPE results},

  author       = {Dingman, S. and Camp, S. and LaChance, J. and Mary Drouin},

  abstractNote = {This paper discusses the core damage frequency (CDF) insights gained by analyzing the results of the Individual Plant Examinations (IPES) for two groups of plants: boiling water reactor (BWR) 3/4 plants with Reactor Core Isolation Cooling systems, and Westinghouse 4-loop plants. Wide variability was observed for the plant CDFs and for the CDFs of the contributing accident classes. On average, transients-with loss of injection, station blackout sequences, and transients with loss of decay heat removal are important contributors for the BWR 3/4 plants, while transients, station blackout sequences, and loss-of-coolant accidents are important for the Westinghouse 4-loop plants. The key factors that contribute to the variability in the results are discussed. The results are often driven by plant-specific design and operational characteristics, but differences in modeling approaches are also important for some accident classes.},

  doi          = {},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {1995},

  month        = {12}

}

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