核电厂乏燃料水池严重事故分析

【摘要】 福岛核事故后,乏燃料水池安全引起广泛关注。文章利用MELCOR程序建立了核电厂乏燃料水池严重事故分析模型,分析了乏燃料水池失水叠加全厂断电事故。计算表明,在乏池干涸以前,破口等效直径越大,事故进程越快,而燃料破损熔化的份额越小,氢气产量和释放的放射性裂变产物的量越少。更多还原

【Abstract】 After the Fukushima nuclear accident, the safety of spent fuel pool has aroused widespread concern. In this paper, a serious accident analysis model of spent fuel pool in nuclear power plant is established by using MELCOR program, and the accident of water loss and superimposed power outage in spent fuel pool is analyzed. The calculation shows that the larger the equivalent diameter of the break, the faster the accident process, and the smaller the share of fuel melting, and the less hydrogen production and radioactive fission products are released.更多还原