Spatial instability analysis in pressurized water reactors
作者： K. Obaidurrahman , J.B. Doshi
DOI: 10.1016/J.ANUCENE.2010.10.015
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摘要: Abstract A simple methodology has been developed to assess the spatial dynamic behavior of large PWRs against xenon instability in different modes. Method analysis aims analyze anticipated reactivity perturbations. Reactivity perturbations modes have evaluated based on device movements as well localized thermal variations core. Effect individual core design and operating parameters studied. Behavior stability index (SI) with size is investigated. Based SI-core curve, a threshold determined beyond which PWR tends become spatially unstable. Methodology used oscillations VVER1000 AP1000 reactor cores.
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