Preliminary feasibility study of PCM condenser for PCCS of APR1400

•Passive Containment Cooling System using Phase Change Material is suggested.•Preliminary results from experiment and CAP code simulation show promising results.•Heat exchanger optimization is key for application. Passive cooling has become an important factor in safety of nuclear reactors. Many ide...

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Bibliographic Details
Published in:Annals of nuclear energy 2021-03, Vol.152, p.107959, Article 107959
Main Authors: Cho, Jai Oan, Ko, Areum, Shin, Sung Gil, Jung, Hwa-Young, Lee, Jeong Ik
Format: Article
Language:English
Subjects:
APR1400
LOCA
Passive cooling
PCCS
PCM
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Summary:•Passive Containment Cooling System using Phase Change Material is suggested.•Preliminary results from experiment and CAP code simulation show promising results.•Heat exchanger optimization is key for application. Passive cooling has become an important factor in safety of nuclear reactors. Many ideas were proposed for the passive cooling of the containment but most are limited in application on existing power plants. A passive containment cooling system using PCM (Phase Change Material) is introduced in this study. Among various PCMs, one organic PCM is selected based on melting temperature and volumetric heat capacity. The cooling capability of the PCM condenser with the selected material was analyzed using CAP code. It showed that even without the active spray system, the PCM condenser can successfully cool the containment under certain conditions. Experiments were performed to test the actual heat transfer performance of the condenser. Results showed that even with simple design of heat exchanger as implemented in the experiment, the PCM condenser can successfully cool the containment for a Loss Of Coolant Accident.
ISSN:0306-4549
1873-2100
DOI:10.1016/j.anucene.2020.107959