的呼气行为和在球形多孔发射介质中确定扩散迁移参数
Yongjun Ye1, Mengge Chen2, Guangling Chen2
1National Joint Engineering Research Center for Airborne Pollutants Control and Radiological Protection in Building Environment University of South China, Hengyang, 421001, Hunan, China; Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, 421001, Hunan, China.
Journal of environmental radioactivity
|December 8, 2023
概括
从多孔球体中呼出的取决于大小. 随着球半径的增加,气呼气稳定,自由释放减少,新的方法可以准确地确定这些参数.
科学领域:
- 环境科学 环境科学
- 地质物理学 地质物理学
- 材料科学 材料科学 材料科学
背景情况:
- 从多孔材料中呼出的受扩散和生产速度的影响.
- 了解球形介质中的运输对于环境和健康评估至关重要.
研究的目的:
- 研究从不同半径的球形多孔介质中呼出的规则.
- 开发和验证一种用于同时确定散系数和自由生产率的新方法.
主要方法:
- 应用雷扩散迁移理论到球形多孔介质.
- 开发了一种专门的方法,用于同时确定散系数和自由生产率.
- 在不同半径的半球测试块上测试了该方法.
主要成果:
- 从球形介质中的出气率随半径增加到6Ld,然后稳定.
- 自由释放的份额随着半径的增加而减少,在18Ld.达到稳定状态.
- 拟议的方法在确定自由生产率时,达到3.9%的相对误差.
结论:
- 球半径显著影响气呼气动力学和自由释放.
- 开发的方法提供了一种可靠和准确的方法,用于描述多孔材料中的运输参数.
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