Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2012, Vol. 23 ›› Issue (6): 369-373 doi: 10.13538/j.1001-8042/nst.23.369-373

• NUCLEAR ENGINEERING • Previous Articles     Next Articles

Effect of hydrogen combustion in the primary pump compartment

LI Jingxi; TONG Lili; CAO Xuewu;   

  1. School of Mechanical Engineering,Shanghai Jiao Tong University;
LI Jingxi, TONG Lili, CAO Xuewu, . Effect of hydrogen combustion in the primary pump compartment.Nuclear Science and Techniques, 2012, 23(6): 369-373     doi: 10.13538/j.1001-8042/nst.23.369-373

Abstract:

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.

Key words: Primary pump compartment, Hydrogen combustion, Computational fluid dynamics