Independent assessment of TRAC-PD2/MOD1 code with BCL ECC bypass tests

Technical Report · Mon Apr 01 04:00:00 EST 1985

OSTI ID:5336745

Slovik, G C; Saha, P

This report presents the TRAC-PD2/MOD1 independent assessment calculations performed at Brookhaven National Laboratory (BNL) using the Emergency Core Cooling (ECC) bypass experiments conducted in a 2/15-scale PWR vessel at Battelle Columbus Laboratories (BCL). Both steady-state experiments with various ECC water subcoolings and transient tests with hot wall effects were simulated. Besides the base cases, several sensitivity calculations were performed to study the effects of nodalization, particularly the relative locations of the hot leg penetrations in the downcomer. In addition, calculations were performed to determine the effect of slight increases in the reverse core steam flow and the associated form losses due to the hot leg penetrations. Code corrections as received from the code developers at Los Alamos National Laboratory (LANL) were also incorporated during this study. 15 refs., 50 figs., 2 tabs.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5336745
• Report Number(s): NUREG/CR-4252; BNL-NUREG-51886; ON: TI85017348
• Country of Publication: United States
• Language: English

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