Scaling Analysis of Thermal-Hydraulics for Steam Generator Passive Heat Removal System  

作　　者：周源 林萌 陈金波 王汉林 

机构地区：[1]School of Nuclear Science and Engineering, Shanghai Jiaotong University [2]The Nuclear Power Institute of China

出　　处：《Journal of Shanghai Jiaotong university(Science)》2014年第2期219-225,共7页上海交通大学学报（英文版）

基　　金：the National Science and TechnologyMajor Project of China(No.2011ZX06004-008)

摘　　要：Steam generator passive heat removal system(SG-PHRS) is used as a passively safe mode to provide decay heat removal in some advanced pressurized water reactors. Due to the structure characteristics of steam generator(SG), there are two natural circulation loops coupling in SG-PHRS in case of a safety-related event. The existing natural circulation scaling criteria could be used to simulate the natural circulation inside SG. Two-phase natural circulation loop is studied carefully, and the dominant effects of SG on behaviors of natural circulation in passive heat removal system are presented. Based on the understanding of SG-PHRS operation, system pressure transient scaling and two-phase natural circulation scaling are analyzed by establishing the relevant continuity,integral momentum and energy equations in one-dimensional area-averaged forms. With modified equations,similarity criteria for SG-PHRS are obtained for engineering application. In addition, equal height simulation and reduced height simulation are studied.Steam generator passive heat removal system （SG-PHRS） is used as a passively safe mode to provide decay heat removal in some advanced pressurized water reactors. Due to the structure characteristics of steam generator （SG）, there are two natural circulation loops coupling in SG-PHRS in case of a safety-related event. The existing natural circulation scaling criteria could be used to simulate the natural circulation inside SG. Two-phase natural circulation loop is studied carefully, and the dominant effects of SG on behaviors of natural circulation in passive heat removal system are presented. Based on the understanding of SG-PHRS operation, system pressure transient scaling and two-phase natural circulation scaling are analyzed by establishing the relevant continuity, integral momentum and energy equations in one-dimensional area-averaged forms. With modified equations, similarity criteria for SG-PHRS are obtained for engineering application. In addition, equal height simulation and reduced height simulation are studied.

关 键 词：steam generator natural circulation scaling simulation thermal hydraulics 

分 类 号：TL334[核科学技术—核技术及应用]