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环形燃料元件小堆是世界上目前比较先进的堆型。研究设计了一个环形燃料元件小堆,开发出适于环形燃料堆计算的软件和方法。采用整组件束棒计算堆芯少群参数的方法大大提高了计算精度。计算了堆芯的有效增殖系数、所有控制毒物的单个价值以及总价值、堆芯从室温到工作温度的温度效应等堆芯参数。结果表明:设计的环形燃料元件堆具有良好的稳定性和安全性,可以作为一代新堆。
A small pile of toroidal fuel elements is the most advanced type in the world today. A small pile of annular fuel elements was designed and developed, and software and methods suitable for the calculation of annular fuel heaps were developed. The method of calculating a small number of core components using the entire assembly beam rod greatly improves the calculation accuracy. The effective multiplication coefficient of the core, the single value of all the poison and the total value of the core, the temperature effect of the core from room temperature to the working temperature and other core parameters were calculated. The results show that the toroidal fuel element stack designed has good stability and safety and can be used as a new generation reactor.