Analyses of startup test, reload limiting transient, and plant event for the Kuosheng BWR-6 related to MSIV closure

Three analyses are presented for the Kuosheng plant, the second nuclear pow er station of the Taiwan Power Company. The first is a startup test benchma rk analysis of full closure of the main steam isolation valves (MSIVs). Thi s analysis is one of a series of startup rest analyses to develop the Kuosh eng RETRAN model. The second is a parallel reload safety analysis of a syst em pressure-limiting transient for Kuosheng Unit 2, Cycle 12, which is a pa rt of work to develop an in-house reload safety analysis methodology. The t hird is an operating support analysis of a reactor trip event due to a sing le MSIV closure in October 1997; this analysis demonstrates the application of the Kuosheng RETRAN model. The work may add to the RETRAN experience ba se and to the plant modeling body of knowledge. A similar approach can be a dopted to support the plant, with concerns.