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首页> 外文会议>International conference on the physics of reactors;PHYSOR 2010 >ANALYSIS OF ACCURACY OF REACTIVITY BALANCE COMPONENTS IN BN-600 POWER FAST REACTOR
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ANALYSIS OF ACCURACY OF REACTIVITY BALANCE COMPONENTS IN BN-600 POWER FAST REACTOR

机译：BN-600动力快速反应堆反应平衡组分准确性分析

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摘要

Reactivity balance is a key element for nuclear safety substantiation for reactor facilities of any type. Commercial operation of BN-600 power fast reactor in Beloyarsk NPP stimulated work on finding optimal balance between conservative safety margins and reactor performance. This paper is devoted to the studies on the possibility of achieving high indices on the accuracy of reactivity balance justification. It is described calculation and experimental methods for determination of components of BN-600 reactivity balance. Results of comparison calculation and experimental data are presented.Taking into account experimental data and verification of codes facilitates increase of accuracy of max excess reactivity forecast up to 0.2%Ak/k. Forecast of the BN-600 reactor core subcriticality after SR setting can be made to the accuracy of 0.2-0.4%Ak/k, accuracy of SHR system worth forecast is 7%, single SR and reactor safety system 7-8%. These values make it possible to significantly decrease (by a factor of 2) conservatism of evaluation of these parameters justifying nuclear safety of the BN-600 reactor core.
机译：反应性平衡是任何类型反应堆设施实现核安全的关键要素。别洛亚尔斯克核电厂的BN-600动力快堆的商业运行刺激了人们在保守的安全余量和反应堆性能之间寻求最佳平衡的努力。本文致力于研究获得高的反应活性平衡合理性指标的可能性的研究。描述了确定BN-600反应性天平组成的计算和实验方法。给出了比较计算的结果和实验数据。 考虑到实验数据和代码验证有助于将最大过剩反应性预测的准确性提高到0.2％Ak / k。 SR设定后，对BN-600反应堆堆芯亚临界的预测可以达到0.2-0.4％Ak / k的准确度，值得预测的SHR系统的准确度为7％，单个SR和反应堆安全系统的准确度为7-8％。这些值可以使对这些参数的评估的保守性显着降低（减少2倍），从而证明BN-600反应堆堆芯的核安全性是正确的。

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