A Multi-Physics Code System Based on ANC9, VIPRE-W and BOA for CIPS Evaluation
NURETH-14 - 2011 September 25-30

Presented at:
2011 September 25-30
Toronto, Canada
Session Title:
D8-2 Multi-scale multi-physics couplings; Multiphysics methods for LWRs simulations

Baocheng Zhang (Westinghouse Electric Company)
Jeffery Secker (Westinghouse)
Charles Beard (Westinghouse)
Peter Hilton (Westinghouse)
Guoqiang Wang (Westinghouse)
Robert Oelrich (Westinghouse Electric Company)
Zeses Karoutas (Westinghouse Electric Company)
Yixing Sung (Westinghouse Electric Company)


 This paper summarizes the development of a multi-physics code system for evaluation of Crud Induced Power Shift (CIPS) phenomenon experienced in some Pressurized Water Reactors (PWR). CIPS is an unexpected change in reactor core axial power distribution, caused by boron compounds in crud deposited in the high power fuel assemblies undergoing subcooled boiling. As part of the Consortium for Advanced Simulation of Light Water Reactors (CASL) sponsored by the US Department of Energy (DOE), this paper describes the initial linkage and application of a multi- physics code system ANC9/VIPRE-W/BOA for evaluating changes in core power distributions due to boron deposited in crud. The initial linkage of the code system along with the application results will be the base for the future CASL development.

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