Discussion and Application of Passive Hydrogen Recombiner in Qinshan Phase II Nuclear Power Plant

Abstract:

A large amount of hydrogen would be generated because of zirconium-water reaction during serious accidents in nuclear power plant (NPP). Hydrogen could be combusted or explode under certain conditions, resulting in damage of the containment integrity and releasing radioactive substances into surrounding environment. Therefore, hydrogen elimination inside the NPP containment is an important subject. According to the requirements of NNSA (National Nuclear Security Administration), enough passive hydrogen recombiners (PHR) had been installed in unit 3&4 of Qinshan phase II NPP to prevent the hydrogen explosion in a serious accident. Additionally, new PHRs for unit 1&2 were also added. This article introduces the practical experience for the PHR modification, the comparisons between unit 1&2 and unit 3&4.

• Periodical: Advanced Materials Research (Volumes 1008-1009)
• Pages: 215-220
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1008-1009.215
• Online since: August 2014
• Authors: Hai Qiao Chen*, Yi Mu Qiu, Xiao Wei Wang, Ying Yu
• Keywords: Nuclear Power Plant (NPP), Nuclear Safety, Passive Hydrogen Recombiner, Serious Accident

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DOI: 10.1016/s0029-5493(96)01264-2