Abstract A design parameter study is presented for the closed-loop type passive containment cooling system (PCCS) which is equipped with two heat exchangers: one installed at the inside of the containment and the other submerged in the water pool at the outside of the containment. A GOTHIC code model for PCCS performance analyses was set up and the design parameters such as the heat exchanger sizes, locations, and water pool tank volumes were analyzed to investigate the feasibility of installing this type of PCCS in PWRs like OPR-1000 being operated in Korea. We identified the size of the circulation loop and heat exchangers as major design parameters affecting the performance of PCCS. The analyses showed that the heat exchangers in the inside of the containment would be more influential on the heat removal capability of PCCS than that installed in the water pool at the outside of the containment. Hence, it was recommended to down-size the heat exchangers in the water pool to optimize PCCS without compromising its performance. Based on the parametric study, it was demonstrated that a closed-loop type PCCS could be designed sufficiently compact for installation in the available space within the containment of PWRs like OPR-1000.

中文翻译：

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闭环被动安全壳冷却系统设计的参数分析

摘要 提出了闭环式被动安全壳冷却系统（PCCS）的设计参数研究，该系统配备了两个热交换器：一个安装在安全壳内部，另一个浸没在安全壳外部的水池中。 . 建立了用于 PCCS 性能分析的 GOTHIC 代码模型，并分析了换热器尺寸、位置和水池水箱容积等设计参数，以研究在运行中的 OPR-1000 等压水堆中安装此类 PCCS 的可行性。朝鲜。我们将循环回路和热交换器的尺寸确定为影响 PCCS 性能的主要设计参数。分析表明，与安装在安全壳外部水池中的换热器相比，安全壳内部的换热器对PCCS的散热能力的影响更大。因此，建议缩小水池中换热器的尺寸以优化 PCCS，同时不影响其性能。根据参数研究，证明可以将闭环型 PCCS 设计得足够紧凑，以便安装在 PWR-1000 等 PWR 安全壳内的可用空间中。