Numerical Simulation of Low Temperature Environmental Heat Dissipation Process of Passive Containment Cooling System Water Storage Tank
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摘要: 三代核电技术AP1000的非能动安全壳冷却系统(PCS)用于事故情况下安全壳的降压和反应堆余热导出。PCS可能面临的一个安全风险是其水箱(PCSWST)在严寒环境下长时间失去加热可能导致的冻结。通过多物理场耦合的数值模拟方法对严寒条件下PCSWST的散热过程进行分析,对其冻结风险进行评估,并就水箱保温设计提出建议。Abstract: Passive Containment Cooling System(PCS) of AP1000 provides the safety-related ultimate heat sink for the plant with high probability. An uncertain risk of PCS is the possibility of PCSWST being frozen when system runs during cold winter. This paper estimated the above risk by multiphysical simulation, and presented suggestions for improving the PCSWST design.
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Key words:
- AP1000 /
- PCS /
- Cooling /
- Thermal insulation /
- Multiphysical simulation
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