Development and Testing of a RETRAN/MINET composite code and application to the J. A. Fitzpatrick plant

Conference · Sun Jan 01 04:00:00 EST 1989

OSTI ID:5380913

Van Tuyle, G. J.; Rohatgi, U. S.; Aronson, A. L.; Chan, B. C.; Mallen, A. N.; Szwarc, K.; Karasulu, M. ^[1]

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1. Brookhaven National Lab., Upton, NY (USA)

The development and testing of the RETRAN/MINET Composite Code, based on RETRAN 02 Mod 3 and MINET Version 1.10, are described. The MINET Code was originally developed for the analysis of complex balance of plant (BOP) thermal-hydraulic systems and already serves that purpose in support of RAMONA-38 for BWR analyses and SSC for LMR analyses. The object in developing RETRAN/MINET was to extend the degree to which complex thermal-hydraulic systems can be analyzed, while providing the capability to use detailed RETRAN modeling of the reactor and other components, where needed. Preliminary testing established proper code performance and data transmission, as well as stability under transient conditions. Two test transients postulated for the H.B. Robinson Plant were simulated using a two loop RETRAN/MINET representation extending to the condenser, and the results were compared against those generated using RELAP5. In addition, the RETRAN model was extended directly to the condenser and the transients were re-run. This provided for a three-way comparison between RETRAN/MINET, RELAP5, and RETRAN (alone). The results generated using RETRAN/MINET and RETRAN were very similar, which again indicates that the interface in performing correctly. The RETRAN/MINET representation through the feedwater train excuted about 20% faster than in the RETRAN (alone) case, although more substantial improvements are expected for more complex systems. The principal objective of establishing correct performance of the composite code has been achieved. 9 refs., 19 figs.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• Sponsoring Organization: EPRI
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5380913
• Report Number(s): BNL-43298; CONF-8909248--1; ON: DE90001533
• Country of Publication: United States
• Language: English

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