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本文研究国内外大量法规标准和安全审查要求,结合以往工程经验和示范工程经验,提出了华龙一号(HPR1000)设计扩展工况(DEC)选取原则和确定方法。研究结果表明,HPR1000可通过PSA方法筛选出一套初步的设计扩展工况清单,在此基础上,参照法规标准所列的设计扩展工况清单及以往同类工程项目确定的设计扩展工况清单,再结合确定论分析方法进行工程判断,进行合并和补充可得到最终的设计扩展工况清单。该方法满足《核动力厂设计安全规定》(HAF102—2016)的最新要求。本研究结果可以为后续HPR1000或其他同类核电厂提供参考。 相似文献
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An ingenious method has been discussed to provide a brief way for the derivation of the streaming term expression in the spherical geometry coordinate system. Instead of finding the differential relationship between the dihedral angle and the neutron transport distance, finding the geometry relationship between the dihedral angle and other plane angles is much easier. And then the differential relationship (easy to be derived) between the other plane angles and the neutron transport distance can be used to derive the expression of the streaming term in the spherical geometry coordinate system indirectly but easily. This method makes the derivation process easy and intuitive, with clear physical picture. 相似文献
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