Effect of hydrogen combustion in the primary pump compartment  

作　　者：LI Jingxi TONG Lili CAO Xuewu 

机构地区：[1]School of Mechanical Engineering,Shanghai Jiao Tong University

出　　处：《Nuclear Science and Techniques》2012年第6期369-373,共5页核技术（英文）

基　　金：Supported by National Basic Research Program of China(No.2009CB724301);National Natural Science Foundation of China(No.11075104)

摘　　要：Hydrogen combustion in a nuclear power plant may threaten the integrity of some important systems and components.In this paper,the effect of hydrogen combustion in the primary pump compartment is analyzed by different initial hydrogen concentration and igniter locations using Computational Fluid Dynamics method.The results show that the combustion is confined to a limited area without pump damage at about 6.6%hydrogen volume fraction.Once igniting the hydrogen,the combustion affects the whole compartment at the 12%hydrogen volume fraction.The stress caused by the great temperature gradient or high temperature may damage the primary pump. Igniters at the lower location accelerate the combustion process and cause a threat to the pump integrity.Hydrogen combustion in a nuclear power plant may threaten the integrity of some important systems and components.In this paper,the effect of hydrogen combustion in the primary pump compartment is analyzed by different initial hydrogen concentration and igniter locations using Computational Fluid Dynamics method.The results show that the combustion is confined to a limited area without pump damage at about 6.6%hydrogen volume fraction.Once igniting the hydrogen,the combustion affects the whole compartment at the 12%hydrogen volume fraction.The stress caused by the great temperature gradient or high temperature may damage the primary pump. Igniters at the lower location accelerate the combustion process and cause a threat to the pump integrity.

关 键 词：氢燃烧 泵舱 计算流体力学方法 氢气燃烧 点火位置 体积分数 温度梯度 燃烧过程 

分 类 号：TM623[电气工程—电力系统及自动化]