Safety Implementation of Hydrogen Igniters and Recombiners for Nuclear Power Plant Severe Accident M

• 作 者: 肖建军 周志伟 经荥清
• 机 构: Institute of Nuclear and New Energy Technology Tsinghua University,Institute of Nuclear and New Ene
• 出 处: Tsinghua Science and Technology
• 发表日期: 2006年05期
• 关键词: detonation ignition flame Nuclear steam Hydrogen acceleration combustion cloud m

Hydrogen combustion in a nuclear power plant containment building may threaten the integrity of the containment. Hydrogen recombiners and igniters are two methods to reduce hydrogen levels in con- tainment buildings during severe accidents. The purpose of this paper is to evaluate the safety implementa- tion of hydrogen igniters and recombiners. This paper analyzes the risk of deliberate hydrogen ignition and investigates three mitigation measures using igniters only, hydrogen recombiners only or a combination of recombiners and igniters. The results indicate that steam can effectively control the hydrogen flame accel- eration and the deflagration-to-detonation transition.

Hydrogen combustion in a nuclear power plant containment building may threaten the integrity of the containment. Hydrogen recombiners and igniters are two methods to reduce hydrogen levels in con- tainment buildings during severe accidents. The purpose of this paper is to evaluate the safety implementa- tion of hydrogen igniters and recombiners. This paper analyzes the risk of deliberate hydrogen ignition and investigates three mitigation measures using igniters only, hydrogen recombiners only or a combination of recombiners and igniters. The results indicate that steam can effectively control the hydrogen flame accel- eration and the deflagration-to-detonation transition.