Unsteady heat-moisture transfer of wet airway in deep mining
Unsteady heat-moisture transfer of wet airway in deep mining
复制标题
深部采矿湿气道非稳态热湿传递
DOI：
10.1007/s11771-013-1697-2
复制
发表时间：
2013-07
影响因子：
4.4
通讯作者：
Wu Lei
中科院分区：
文献类型：
--
作者：
Wang Yi-jiang;Zhou Guo-qing;Wu Lei
为了研究深部开采中湿围岩的非稳态热湿迁移机理，进行了不同初始条件和边界条件下的一系列实验。试验结果表明，岩石温度在初始阶段下降较快，最后缓慢下降到一个恒定值，达到瞬时热湿传递的目的。湿式风道的准稳态表面温度低于干式风道，这是由于湿式风道的水分传递作用。由于扩散阻力较大，扩散半径小于冷却半径。湿式风道的出口气流焓远大于干式风道。在深部热环境中，水汽输送产生的潜热起着重要的作用。对于周期性的热湿传递，出口气流的温度、湿度、热焓和岩石温度也是周期性变化的。随着距巷道表面距离的增加，岩石温度的波动幅度逐渐减小，并且岩石温度的波动相位也落后于气流的波动相位。此外，风道和气流之间的热湿传递方向是双向的，这与瞬变传递的结果不同。
To study the mechanism of unsteady heat-moisture transfer of wet surrounding rock in deep mining, a series of experiments with different initial and boundary conditions were carried out. Test results show that rock temperature decreases quickly at the initial stage, and reduces slowly to be a constant value finally for transient heat-moisture transfer. The quasi-steady surface temperature of wet airway is lower than that of dry airway due to the moisture transfer. The diffusion radius is less than the cooling radius owing to the large diffusion resistance. The outlet airflow enthalpy of wet airway is much larger than that of dry airway. Latent heat caused by the moisture transfer plays a significant role in a deep thermal environment. For periodic heat-moisture transfer, temperature, humidity and enthalpy of outlet airflow and rock temperature also change periodically. The wave amplitude of rock temperature decreases gradually with increasing distance away from the airway surface, and the wave phase of rock temperature is also behind that of airflow. Moreover, direction of the heat-moisture transfer between airway and airflow is bidirectional, which is different from results of transient transfer.
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DOI：
10.1016/s1365-1609(99)00072-6
发表时间：
2000-04
影响因子：
7.2
作者：
Jun Sun;Sijing Wang
通讯作者：
Jun Sun;Sijing Wang
DOI：
10.1016/0148-9062(82)90708-2
发表时间：
1982-02
期刊：
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts
影响因子：
--
作者：
K. Amano;Y. Mizuta;Y. Hiramatsu
通讯作者：
K. Amano;Y. Mizuta;Y. Hiramatsu
DOI：
--
发表时间：
2007
期刊：
Journal of Mining and Safety Engineering
影响因子：
--
作者：
Yuan Liang
通讯作者：
Yuan Liang
DOI：
--
发表时间：
1983-11
期刊：
Journal of The South African Institute of Mining and Metallurgy
影响因子：
--
作者：
A. Starfield;A. Bleloch
通讯作者：
A. Starfield;A. Bleloch
影响因子：
6.9
作者：
Lowndes, IS;Crossley, AJ;Yang, ZY
通讯作者：
Yang, ZY