中国铅合金冷却研究堆事故余热排出系统概念设计与分析

Preliminary Design and Analysis of Emergency Decay Heat Removal System for China Lead Alloy Cooled Research Reactor

针对中国铅合金冷却研究堆(CLEAR-I)的设计需要,提出了一种非能动事故余热排出系统的方案设计。该系统利用反应堆容器外的空气自然循环,把事故工况下的堆芯余热排出到最终热阱。通过CFD数值求解耦合经验公式的手段,对该非能动事故余热排出系统的运行进行模拟,验证了设计方案的可行性。

Based on the design requirement for the China Lead Alloy Cooled Research Reactor, a preliminary design of passive emergency decay heat removal system was presented. Air natural circulation around the reactor vessel was adopted by this system to remove the decay heat of the reactor core under accident conditions. Via the numerical method using CFD code coupled with empirical formula＇s solution, the emergency decay heat removal system was simulated..And the feasibility of the system was validated by the calculation result.