Novel approaches for accurately measuring radon exhalation rate and mechanism interpreted by numerical simulation

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作者信息关键词期刊信息基础信息归属信息摘要

成果类型：

期刊论文

作者：

Xia, Ming;Ye, Yongjun;Zhou, Ning

通讯作者：

Ye, YJ

作者机构：

[Ye, Yongjun; Xia, Ming; Zhou, Ning] Univ South China, Sch Resources Environm & Safety Engn, Hengyang 421001, Peoples R China.

[Ye, Yongjun] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Min, Hengyang 421001, Peoples R China.

通讯机构：

[Ye, YJ ] U

Univ South China, Sch Resources Environm & Safety Engn, Hengyang 421001, Peoples R China.

语种：

英文

关键词：

Numerical methods;Numerical models;Accumulation chamber;Back diffusion;Cylindrical vessels;Differential pressures;Improved measurement;Measurement-based;Measurements of;Numerical techniques;Radon exhalation rate;Theoretical values;Radon;activated carbon;radon;uranium;measurement method;radon;redox conditions;simulation;adsorption;Article;atmospheric pressure;calculation;diffusion;exhalation;flow rate;measurement accuracy;measurement error;mine tailings;moisture;relative humidity;simulation;surface property;temperature;article;controlled study;pressure;sand

期刊：

Journal of Hazardous Materials

ISSN：

0304-3894

年：

2024

卷：

468

页码：

133865

DOI：

10.1016/j.jhazmat.2024.133865

基金类别：

This work was supported by the National Natural Science Foundation of China (Grant No. 11575080 ), the Natural Science Foundation of Hunan Province, China (Grant No. 2022JJ30482 ), and Hunan Provincial Innovation Foundation for Postgraduates (Grant No. QL20220206 ). In addition, Xia, Ming wants to thank the inimitable care and support from Yang, Shiqi over the years.

机构署名：

本校为第一且通讯机构

院系归属：

核资源工程学院

摘要：

Measurements of radon exhalation rate using traditional methods can be affected by back-diffusion or differential pressure in the accumulation chamber, resulting in deviations between the measured and the true values. To obtain an accurate radon exhalation rate for evaluation of radon-risk regions, two novel approaches of measurements based on traditional methods were proposed. Repeated experiments were implemented on a self-designed stainless cylindrical vessel filled with uranium tailings sand. The measured radon exhalation rates on average w...

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Novel approaches for accurately measuring radon exhalation rate and mechanism interpreted by numerical simulation

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