采用解析方法研究了引入小阶跃反应性(ρ0〈β)和有温度反馈时反应堆的缓发超临界过程。导出了任意初始功率条件下反应性与时间关系的解析表达式,得出了功率随时间的变化规律。对不同初始功率条件下引入小阶跃反应性时反应堆功率与反应性的变化规律进行了研究。结果表明,初始功率对变化过程有显著影响。
By using the analytical method, the delayed supercritical process of nuclear reactor with temperature feedback while inserting small step reactivity ( ρ0 〈β ) is analyzed. The analytical expression of the relationship between reactivity and time is derived, and the variation curves of output power with time are obtained. The effects of the inserted step reactivity and initial power on the delayed supercritical process are analyzed and discussed. The results indicate that initial power of reactor can obviously influence the transient process.