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为了更加充分利用核燃料,在一定的初始燃料富集度和合理地展平功率分布的条件下,达到高燃耗,必须对核供热堆的初装堆芯和换料方式作优化设计,以便实现在给定工况下核燃料循环的最优化和降低燃料成本。叙述了换料优化设计的步骤和倒换料规则,并对低泄漏堆芯和传统的外内装载方式进行了换料优化设计,得到了可供工程设计参考的一种换料优化方案,该方案可提高循环末组件燃耗、降低整个循环过程中的最大功率峰因子。
In order to make full use of nuclear fuel, to achieve high fuel consumption under certain initial fuel enrichment and reasonable power distribution flattening, the initial reactor core refueling and refueling mode must be optimized so that Optimize nuclear fuel cycle and reduce fuel costs under given conditions. The steps of refueling design and the rules of refueling materials are described, and the refueling optimization design of low leakage core and the traditional external loading method is carried out. A refueling optimization scheme is obtained for engineering design reference Fuel consumption can be increased at the end of the cycle, reducing the maximum power peak factor throughout the cycle.