A study on the three-dimensional unsteady state of indoor radon diffusion under different ventilation conditions

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成果类型：

期刊论文

作者：

Xie, Dong*;Wu, Yangxi;Wang, Chenhua;Yu, Chuck Wah;Tian, Ling;...

通讯作者：

Xie, Dong

作者机构：

[Wang, Chenhua; Xie, Dong; Wu, Yangxi; Wang, Hanqing; Tian, Ling] Natl & Local Joint Engieering Res Ctr Airborne Po, Hengyang 421001, Peoples R China.

[Xie, Dong; Wu, Yangxi; Tian, Ling; Yu, Chuck Wah] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.

[Wang, Hanqing] Cent South Univ Forestry & Technol, Changsha 410004, Peoples R China.

[Yu, Chuck Wah] Int Soc Built Environm ISBE, Milton Keynes, Bucks, England.

[Xie, Dong] Univ South China, Hengyang, Hunan, Peoples R China.

通讯机构：

[Xie, Dong] U

Univ South China, Hengyang, Hunan, Peoples R China.

语种：

英文

关键词：

Indoor radon environment;Radon diffusion and distribution;CFD simulation;Three-dimensional unsteady state;Stabilization time

期刊：

Sustainable Cities and Society

ISSN：

2210-6707

年：

2021

卷：

页码：

102599

DOI：

10.1016/j.scs.2020.102599

基金类别：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [U1867221]; Natural Science Foundation of Hunan province of ChinaNatural Science Foundation of Hunan Province [2020JJ6004]

机构署名：

本校为通讯机构

院系归属：

土木工程学院

摘要：

The exhalation of radon from building materials is a serious risk to occupants? health. This paper studied the indoor radon diffusion under three-dimensional unsteady conditions. The radon exhalation rate of building materials was measured using a radon collection chamber combined with a RAD7-based radon/thoron detector. The indoor radon diffusion under different ventilation patterns were simulated by CFD (Computational fluid dynamics) based on the stabilization of radon concentration after 10 h in a closed environment as an initial condition. The results show that the stabilization time is 20...

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A study on the three-dimensional unsteady state of indoor radon diffusion under different ventilation conditions

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