低浓铀轻水零功率装置事故分析

Accident Analysis for Low Concentration UO_2/H_2O Zero Power Assembly

本文分析了采用低富集度ＵＯ_２燃料和轻水慢化剂的零功率装置几种假想的极限事故。分析结果表明，即使发生瞬发超临界事故，只要反应堆保护系统功能正常，能正确实施事故保护停堆，就可以保证反应堆燃料元件棒的完整性，对环境不产生不可接受的危害。

This paper analyses several supposed limit-accidents for the low concentration UO,/H,Ozero power assembly. The results show that the integrity of fuel element will not be destroiedand the environmental impacts will all be acceptable, even if at prompt supercritical accident,provided the control and protection system of the assembly is at good condition which shouldensure an immediately shutdown of the assembly when the accident occures.