在高温矿山工作面上的热量和质量转移的灵敏度分析
Hang Zhou1, Xiangdong Zhang1, Shuguang Zhang2
1School of Civil Engineering, Liaoning Technical University, Fuxin, China.
PloS one
|June 28, 2024
概括
深坑安全受到高温的威胁. 进风温度和速度显著影响空气流温度和湿度,而湿度和速度影响相对湿度,进风条件是主要因素.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 热力工程是热力工程中的一个.
- 环境科学 环境科学
背景情况:
- 来自热源的热损伤对深矿生产安全构成重大风险.
- 矿山中的热量和质量转移过程会增加气流温度,水分含量和相对湿度.
研究的目的:
- 量化工作面参数对空气流温度 (AFT),空气流含水量 (AFMC) 和空气流相对湿度 (AFRH) 的不确定性贡献.
- 为了确定这些热量和湿度变化在深矿的主要贡献者.
主要方法:
- 使用点拼接非侵入性的多项式混乱方法来计算Sobol索引.
- 分析了工作面的流量,几何和物理参数的不确定性贡献.
主要成果:
- 进风温度和速度被确定为影响AFT和AFMC的主要因素.
- 据发现,进风的相对湿度和风速是AFRH的主要驱动因素.
- 单因素分析显示,进风温度和进风相对湿度具有很大的影响力,超过了风速的影响.
结论:
- 工作面的几何参数 (长度,宽度,高度) 和通风时间是影响AFT,AFMC和AFRH的重要因素.
- 煤和原始岩石温度的导热性也对AFRH至关重要,特别是与AFT和AFMC相比.
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