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RELAP5-3D Validation Study Using MB-2 Prototypical Steam Generator Steady-State Data
Volume 151 · Number 3 · September 2005 · Pages 272-280
Technical Paper · Thermal Hydraulics
A. Sawyer, M. Williamson, K. Zhao, A. Ruggles
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A validation study of RELAP5-3D is performed using data from the Model Boiler Number 2 (MB-2) Prototypical Steam Generator Testing Program. The MB-2 is a 6.67-MW(thermal) power-scaled representation of the Westinghouse Model F steam generator. Comparisons with previous simulations using RELAP5/MOD3.2 are also offered. Limit cycles predicted by the RELAP5/MOD3.2 simulation are reduced in the RELAP5-3D simulation using identical nodalization. Steady-state data from the MB-2 tests used in the validation do not exhibit a limit cycle. The sources of the predicted limit cycles are investigated and feedback mechanisms contributing to the limit cycles are explained.
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