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《Nuclear Science and Engineering》 2012-01
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Effects of rupture location and the number of ruptured tubes on the analysis of SGTR accident

JIANG Li-guo,PENG Min-jun,LIU Jian-ge,GUO Yun(National Defense Key Laboratory of Nuclear Safety and Simulation Technique, Harbin Engineering University,Harbin of Helongjiang Prov.150001,China)  
A steam generator tube rupture event in the integral type reactor has been investigated using the best estimate thermal hydraulic system code,RELAP5/MOD3.4.The effects of the parameters such as the number of ruptured tubes,rupture location on the analysis of the SGTR event in integral type reactor are examined.Results of these cases are provided for scoping purpose to show the mild influence of the break size on the total loss of mass.This confirms that the integral type reactor response to a steam generator tube rupture is not significantly impacted by the rupture location and the postulated number of ruptured tubes,and the total loss of mass from the primary system is always small compared to the RCS water inventory.It is found that the most dominant parameter governing the reactor reaponse is the leak flow rate.
【Fund】: 黑龙江省普通高校青年学术骨干支持计划项目(1151G072)
【CateGory Index】: TK172.4
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