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http://dx.doi.org/10.1016/j.net.2020.09.007

Parametric analyses for the design of a closed-loop passive containment cooling system  

Bang, Jungjin (Central Research Institute, Korea Hydro and Nuclear Power, Ltd.)
Hwang, Ji-Hwan (School of Energy Systems Engineering, Chung-Ang University)
Kim, Han Gon (Central Research Institute, Korea Hydro and Nuclear Power, Ltd.)
Jerng, Dong-Wook (School of Energy Systems Engineering, Chung-Ang University)
Publication Information
Nuclear Engineering and Technology / v.53, no.4, 2021 , pp. 1134-1145 More about this Journal
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.
Keywords
Passive containment cooling systems; OPR-1000 nuclear power plants; GOTHIC code;
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