摘要
应用MELCOR 1.8.5程序模拟了秦山二期无缓解措施的大破口LOCA严重事故序列,并利用西屋公司堆芯损伤评价导则(CDAG)对该事故早期堆芯损伤进行评价,得到了下封头失效前特定时刻的堆芯损伤状态和程度。初步分析结果表明,CDAG可以合理地评价秦山二期无缓解措施的大破口严重事故堆芯损伤状况和损伤程度,对进一步研究和验证CDAG的综合评价能力和适用性具有重要参考意义。
The paper applied MELCOR1. 8. 5 to analyze the large break severe LOCA accidentwithout mitigatory measures for Qinshan Ⅱ, and adopted the Westinghouse Owners Group Core Damage Assessment Guidance（CDAG）to estimate the status and extent of the core damage in the early phase of the accident. The analysis results of the core damage status and extent before the failure of the bottom head of the reactor vessel have shown that CDAG can reasonably evaluate the core damage status and extent, which are significant value for further study and validate the comprehensive assessment capability and applicability of CDAG.
出处
《核科学与工程》
CSCD
北大核心
2008年第4期334-340,共7页
Nuclear Science and Engineering
