喷淋模式对氢气爆炸影响的初步研究

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Preliminary Study on the Effect of Spray Model on Hydrogen Explosion

摘要: 采用MELCOR程序比较了大亚湾核电站在全厂断电事故下,恢复供电后不同喷淋模式对事故进程的影响。结果显示,采用较短的喷淋持续时间和适宜的喷淋投入时间,能较明显地避免氢燃或降低氢燃的强度,从而延迟安全壳内压力到达限值的时间。
- 严重事故 /
- 全厂断电 /
- 喷淋模式 /
- 氢气燃烧
Abstract: The effects of different spray models on the accident progress after the power recovery at blackout accident in Daya Bay Nuclear Power Plant were compared by MELCOR code. The result showed that the hydrogen combustion can be avoided or mitigated substantially by shorter spray duration and proper start time to activate the spray, and thus the time for the pressure in the containment reaching the limit can be retarded.
- Severe accident /
- Blackout /
- Spray model /
- Hydrogen combustion