Critical Accident Analysis Method of Solution System Based on Monte Carlo Homogenization Theory and Finite Volume Method

Based on the Monte Carlo homogenization theory and the finite volume method, a three-dimensional diffusion spatiotemporal dynamics model suitable for the analysis of instantaneous critical accidents was established. The three-dimensional diffusion spatiotemporal dynamics model was coupled with the u...

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Main Author: SUN Xu;ZHOU Qi;YU Huiying;ZHU Qingfu;XIA Zhaodong;NING Tong;MA Xiaodi
Format: Article
Language:English
Published: Editorial Board of Atomic Energy Science and Technology 2022-01-01
Series:Yuanzineng kexue jishu
Online Access:https://www.aest.org.cn/CN/10.7538/yzk.2021.youxian.0379
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author SUN Xu;ZHOU Qi;YU Huiying;ZHU Qingfu;XIA Zhaodong;NING Tong;MA Xiaodi
author_facet SUN Xu;ZHOU Qi;YU Huiying;ZHU Qingfu;XIA Zhaodong;NING Tong;MA Xiaodi
author_sort SUN Xu;ZHOU Qi;YU Huiying;ZHU Qingfu;XIA Zhaodong;NING Tong;MA Xiaodi
collection DOAJ
description Based on the Monte Carlo homogenization theory and the finite volume method, a three-dimensional diffusion spatiotemporal dynamics model suitable for the analysis of instantaneous critical accidents was established. The three-dimensional diffusion spatiotemporal dynamics model was coupled with the unsteady state heat transfer model and the radiation cracking bubble model, and the calculation program GETAC-S was upgraded, so that GETAC-S had the ability to analyze the transient state of the solution system under any geometric and material conditions. GETAC-S was verified by the experimental data of TRACY, which was an international transient device, and the results are in good agreement. GETAC-S was used to invert the process of JCO criticality accident in Japan, and the results show that the GETAC-S has the ability to evaluate and retrieve the consequences of critical accidents in complex solution system, which provide theoretical support for the prevention, evaluation and shielding of nuclear critical accidents.
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spelling doaj.art-19ad940b2b674fc9b852be4ae011638a2022-12-22T02:54:41ZengEditorial Board of Atomic Energy Science and TechnologyYuanzineng kexue jishu1000-69312022-01-01561146152Critical Accident Analysis Method of Solution System Based on Monte Carlo Homogenization Theory and Finite Volume MethodSUN Xu;ZHOU Qi;YU Huiying;ZHU Qingfu;XIA Zhaodong;NING Tong;MA Xiaodi 0Division of Reactor Engineering Technology Research, China Institute of Atomic Energy, Beijing 102413, China;State Power Investment Corporation Research Institute, Beijing 102209, ChinaBased on the Monte Carlo homogenization theory and the finite volume method, a three-dimensional diffusion spatiotemporal dynamics model suitable for the analysis of instantaneous critical accidents was established. The three-dimensional diffusion spatiotemporal dynamics model was coupled with the unsteady state heat transfer model and the radiation cracking bubble model, and the calculation program GETAC-S was upgraded, so that GETAC-S had the ability to analyze the transient state of the solution system under any geometric and material conditions. GETAC-S was verified by the experimental data of TRACY, which was an international transient device, and the results are in good agreement. GETAC-S was used to invert the process of JCO criticality accident in Japan, and the results show that the GETAC-S has the ability to evaluate and retrieve the consequences of critical accidents in complex solution system, which provide theoretical support for the prevention, evaluation and shielding of nuclear critical accidents.https://www.aest.org.cn/CN/10.7538/yzk.2021.youxian.0379
spellingShingle SUN Xu;ZHOU Qi;YU Huiying;ZHU Qingfu;XIA Zhaodong;NING Tong;MA Xiaodi
Critical Accident Analysis Method of Solution System Based on Monte Carlo Homogenization Theory and Finite Volume Method
Yuanzineng kexue jishu
title Critical Accident Analysis Method of Solution System Based on Monte Carlo Homogenization Theory and Finite Volume Method
title_full Critical Accident Analysis Method of Solution System Based on Monte Carlo Homogenization Theory and Finite Volume Method
title_fullStr Critical Accident Analysis Method of Solution System Based on Monte Carlo Homogenization Theory and Finite Volume Method
title_full_unstemmed Critical Accident Analysis Method of Solution System Based on Monte Carlo Homogenization Theory and Finite Volume Method
title_short Critical Accident Analysis Method of Solution System Based on Monte Carlo Homogenization Theory and Finite Volume Method
title_sort critical accident analysis method of solution system based on monte carlo homogenization theory and finite volume method
url https://www.aest.org.cn/CN/10.7538/yzk.2021.youxian.0379
work_keys_str_mv AT sunxuzhouqiyuhuiyingzhuqingfuxiazhaodongningtongmaxiaodi criticalaccidentanalysismethodofsolutionsystembasedonmontecarlohomogenizationtheoryandfinitevolumemethod