WRAP-PWR-EM system development and applications

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:5779331

Beranek, F.

The WRAP-EM system is a complete computational system for analysis of loss-of-coolant accidents (LOCAs) in light-water power reactors. The system has been developed for use by the Nuclear Regulatory Commission in evaluating and interpreting reactor vendor model methods and results. WRAP-PWR-EM is the integrated system of codes used for the analysis of pressurized water reactors (PWRs) GAPCON-THERMAL-2 is used to initialize fuel parameters as a function of reactor operating time. Both the blowdown and reflood phases of an accident are analyzed by RELAP4/MOD5. The refill calculation is based on a simple accumulator flow model (FLOW4) developed at NRC, and the hot-pin analysis is performed by FRAP-T4-LACE. The automated transfer of relevant data from one code to another is accomplished through interface routines developed at SRL (except RELAP4/MOD5-FLOOD to FRAP).

• Research Organization: Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
• DOE Contract Number: EY-76-C-09-0001
• OSTI ID: 5779331
• Report Number(s): DP-MS-79-83; CONF-791123-1
• Country of Publication: United States
• Language: English

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