Coupled Analysis of Heat Transfer in a Molten Pool With Three-Layer Configuration

Understanding a reliable description of the heat transfer in the molten pool with three-layer configuration is inevitable for the design of severe accident mitigation measures in research reactors, such as IVR-ERVC. However, investigations on a thick lower metallic layer are scarce. Thus, further st...

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Main Authors: Jian Deng, Dahuan Zhu, Yuejian Luo, Hongping Sun, Ming Zhang, Lili Liu, Qingan Xiang, Xiaoli Wu, Youyou Xu, Qingwen Xiong
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-06-01
Series:Frontiers in Energy Research
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fenrg.2022.915450/full
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author Jian Deng
Dahuan Zhu
Yuejian Luo
Hongping Sun
Ming Zhang
Lili Liu
Qingan Xiang
Xiaoli Wu
Youyou Xu
Qingwen Xiong
author_facet Jian Deng
Dahuan Zhu
Yuejian Luo
Hongping Sun
Ming Zhang
Lili Liu
Qingan Xiang
Xiaoli Wu
Youyou Xu
Qingwen Xiong
author_sort Jian Deng
collection DOAJ
description Understanding a reliable description of the heat transfer in the molten pool with three-layer configuration is inevitable for the design of severe accident mitigation measures in research reactors, such as IVR-ERVC. However, investigations on a thick lower metallic layer are scarce. Thus, further studies on heat transfer in a molten pool with a thick lower metallic layer are highly required, based on previous severe accident studies in light water reactors. This study conducts a numerical simulation of heat transfer in the molten pool with a thick lower metallic layer during a severe accident, combining model development, code verification, and code application. First, the MPCAP code has been developed, based on the coupled simulation of natural convection inside the molten pool, two-dimensional heat conduction in the RPV lower head, and convection outside the reactor vessel wall. Then, a verification case has been conducted using three-layer configuration in AP1000. The AP1000 verification case indicates that the MPCAP code predicts important parameters in the molten pool well.
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spelling doaj.art-551030b0d4374745808b89de9a23884f2022-12-22T02:29:25ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2022-06-011010.3389/fenrg.2022.915450915450Coupled Analysis of Heat Transfer in a Molten Pool With Three-Layer ConfigurationJian DengDahuan ZhuYuejian LuoHongping SunMing ZhangLili LiuQingan XiangXiaoli WuYouyou XuQingwen XiongUnderstanding a reliable description of the heat transfer in the molten pool with three-layer configuration is inevitable for the design of severe accident mitigation measures in research reactors, such as IVR-ERVC. However, investigations on a thick lower metallic layer are scarce. Thus, further studies on heat transfer in a molten pool with a thick lower metallic layer are highly required, based on previous severe accident studies in light water reactors. This study conducts a numerical simulation of heat transfer in the molten pool with a thick lower metallic layer during a severe accident, combining model development, code verification, and code application. First, the MPCAP code has been developed, based on the coupled simulation of natural convection inside the molten pool, two-dimensional heat conduction in the RPV lower head, and convection outside the reactor vessel wall. Then, a verification case has been conducted using three-layer configuration in AP1000. The AP1000 verification case indicates that the MPCAP code predicts important parameters in the molten pool well.https://www.frontiersin.org/articles/10.3389/fenrg.2022.915450/fullIVR-ERVCthick metallic layerheat transfer in molten poolnumerical simulationcoupled analysis
spellingShingle Jian Deng
Dahuan Zhu
Yuejian Luo
Hongping Sun
Ming Zhang
Lili Liu
Qingan Xiang
Xiaoli Wu
Youyou Xu
Qingwen Xiong
Coupled Analysis of Heat Transfer in a Molten Pool With Three-Layer Configuration
Frontiers in Energy Research
IVR-ERVC
thick metallic layer
heat transfer in molten pool
numerical simulation
coupled analysis
title Coupled Analysis of Heat Transfer in a Molten Pool With Three-Layer Configuration
title_full Coupled Analysis of Heat Transfer in a Molten Pool With Three-Layer Configuration
title_fullStr Coupled Analysis of Heat Transfer in a Molten Pool With Three-Layer Configuration
title_full_unstemmed Coupled Analysis of Heat Transfer in a Molten Pool With Three-Layer Configuration
title_short Coupled Analysis of Heat Transfer in a Molten Pool With Three-Layer Configuration
title_sort coupled analysis of heat transfer in a molten pool with three layer configuration
topic IVR-ERVC
thick metallic layer
heat transfer in molten pool
numerical simulation
coupled analysis
url https://www.frontiersin.org/articles/10.3389/fenrg.2022.915450/full
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