Study of a High Temperature–Resistant Shielding Material for the Shielding Doors of Nuclear Power Plants

An optimization design and application of high temperature–resistant shielding material was carried out according to the nuclear power plant source characteristics and special protection requirements such as loss-of-coolant accident (LOCA). The composition of lead–boron polyethylene shielding compos...

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Autores principales:	LI Xiao-ling, Wu Rong-jun, Xu Xiao-hui, Zhang Duo-fei, YU Ming
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	high temperature resistance shielding material optimization design loss-of-coolant accident shielding design General Works A
Acceso en línea:	https://doaj.org/article/2db341cbc9bc426dbabe8fea32ffe854
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spelling	oai:doaj.org-article:2db341cbc9bc426dbabe8fea32ffe8542021-11-30T11:43:26ZStudy of a High Temperature–Resistant Shielding Material for the Shielding Doors of Nuclear Power Plants2296-598X10.3389/fenrg.2021.751654https://doaj.org/article/2db341cbc9bc426dbabe8fea32ffe8542021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fenrg.2021.751654/fullhttps://doaj.org/toc/2296-598XAn optimization design and application of high temperature–resistant shielding material was carried out according to the nuclear power plant source characteristics and special protection requirements such as loss-of-coolant accident (LOCA). The composition of lead–boron polyethylene shielding composite was optimized based on the genetic algorithm and Monte Carlo methods and then realized by blending modification and graft copolymerization to improve its high temperature–resistant, shielding, and mechanical properties. Then comprehensive properties such as mechanical, neutron shielding, damp heat aging, irradiation resistance, and high temperature resistance were tested. These experiments proved that the high temperature–resistant lead–boron polyethylene shielding composite has excellent performance; especially, as it is able to keep a complete structure in a high-temperature environment of up to 190°C for 48 h. Finally, the shielding composite was applied to the shielding door design of a reactor pit chamber. When the shield thickness is 60 mm, the level of the neutron dose rate was reduced by 10 times, and that of the γ dose rate was reduced by 5 times, which meets all the requirements of radiation protection safety for nuclear power plants.LI Xiao-lingWu Rong-junXu Xiao-huiZhang Duo-feiYU MingFrontiers Media S.A.articlehigh temperature resistanceshielding materialoptimization designloss-of-coolant accidentshielding designGeneral WorksAENFrontiers in Energy Research, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	high temperature resistance shielding material optimization design loss-of-coolant accident shielding design General Works A
spellingShingle	high temperature resistance shielding material optimization design loss-of-coolant accident shielding design General Works A LI Xiao-ling Wu Rong-jun Xu Xiao-hui Zhang Duo-fei YU Ming Study of a High Temperature–Resistant Shielding Material for the Shielding Doors of Nuclear Power Plants
description	An optimization design and application of high temperature–resistant shielding material was carried out according to the nuclear power plant source characteristics and special protection requirements such as loss-of-coolant accident (LOCA). The composition of lead–boron polyethylene shielding composite was optimized based on the genetic algorithm and Monte Carlo methods and then realized by blending modification and graft copolymerization to improve its high temperature–resistant, shielding, and mechanical properties. Then comprehensive properties such as mechanical, neutron shielding, damp heat aging, irradiation resistance, and high temperature resistance were tested. These experiments proved that the high temperature–resistant lead–boron polyethylene shielding composite has excellent performance; especially, as it is able to keep a complete structure in a high-temperature environment of up to 190°C for 48 h. Finally, the shielding composite was applied to the shielding door design of a reactor pit chamber. When the shield thickness is 60 mm, the level of the neutron dose rate was reduced by 10 times, and that of the γ dose rate was reduced by 5 times, which meets all the requirements of radiation protection safety for nuclear power plants.
format	article
author	LI Xiao-ling Wu Rong-jun Xu Xiao-hui Zhang Duo-fei YU Ming
author_facet	LI Xiao-ling Wu Rong-jun Xu Xiao-hui Zhang Duo-fei YU Ming
author_sort	LI Xiao-ling
title	Study of a High Temperature–Resistant Shielding Material for the Shielding Doors of Nuclear Power Plants
title_short	Study of a High Temperature–Resistant Shielding Material for the Shielding Doors of Nuclear Power Plants
title_full	Study of a High Temperature–Resistant Shielding Material for the Shielding Doors of Nuclear Power Plants
title_fullStr	Study of a High Temperature–Resistant Shielding Material for the Shielding Doors of Nuclear Power Plants
title_full_unstemmed	Study of a High Temperature–Resistant Shielding Material for the Shielding Doors of Nuclear Power Plants
title_sort	study of a high temperature–resistant shielding material for the shielding doors of nuclear power plants
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/2db341cbc9bc426dbabe8fea32ffe854
work_keys_str_mv	AT lixiaoling studyofahightemperatureresistantshieldingmaterialfortheshieldingdoorsofnuclearpowerplants AT wurongjun studyofahightemperatureresistantshieldingmaterialfortheshieldingdoorsofnuclearpowerplants AT xuxiaohui studyofahightemperatureresistantshieldingmaterialfortheshieldingdoorsofnuclearpowerplants AT zhangduofei studyofahightemperatureresistantshieldingmaterialfortheshieldingdoorsofnuclearpowerplants AT yuming studyofahightemperatureresistantshieldingmaterialfortheshieldingdoorsofnuclearpowerplants
_version_	1718406612000964608

Study of a High Temperature–Resistant Shielding Material for the Shielding Doors of Nuclear Power Plants

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