Assessment of TRAC-BD1 amd RAMONA-3B codes fpr BWR ATWS application

Conference · Sun Jan 01 04:00:00 EST 1984

OSTI ID:6026726

Neymotin, L; Hsu, C J; Saha, P

Based on comparisons between the TRAC-BD1 power imposed calculation and the RAMONA-3B results, it can be said that the thermal-hydraulic models of both RAMONA-3B and TRAC-BD1 provide adequate representation of an ATWS event in a BWR. However, for the reactor power calculation, RAMONA-3B with space-time neutron kinetics is a superior and preferable tool to the TRAC-BD1 with point kinetics for ATWS type events where the spatial core power distribution varies with time. Also, the computer running time for RAMONA-3B (with 115 hydraulic cells and 192 neutronic cells has been found to be about four times lower than TRAC-BD1 (with 63 hydraulic cells and point kinetics). Therefore, it is recommended that RAMONA-3B be further used for best-estimate analysis of BWR ATWS-type events.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6026726
• Report Number(s): BNL-NUREG-35582; CONF-8410142-82; ON: TI85006563
• Country of Publication: United States
• Language: English

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