A new method for the computation of heat and moisture transfer in a partly wet airway
A new method for the computation of heat and moisture transfer in a partly wet airway
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发表时间：
1983-11
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通讯作者：
A. Starfield;A. Bleloch
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作者：
A. Starfield;A. Bleloch
本文研究了深部巷道典型断面平面内的热流问题。本文提出了一种新的计算平面内岩石温度的算法，称为准稳态法。该算法用于计算从岩石到通风空气的热湿传递速率，该通风道在其圆周的一部分上是湿的，在其他地方是干的。新方法的速度和精度在微型计算机上进行了演示，它认为，这种方法提供了一个相当多的通用性和物理意义的替代以前的方法预测空气温度的增加沿着矿井通风道。该算法也被用来探索一个均匀的湿气道的概念，相当于一个部分湿气道在其对通风空气的影响。这一概念被证明是合理的，但比人们预期的要复杂得多。最后，提出了新方法的几个有用的扩展和应用。
This paper is concerned with heat flow in the plane of a typical cross-section of a deep underground airway. A new algorithm, called the quasi-steady method, is presented for the calculation of rock temperatures in that plane. The algorithm is used in the computation of heat and moisture transfer rates from the rock to the ventilating air for an airway that is wet on part of its circumference and dry elsewhere. The speed and accuracy of the new method are demonstrated on a microcomputer, and it is argued that this method offers a considerably more versatile and physically meaningful alternative to previous methods for the prediction of increases in air temperature along mine airways. The algorithm is also used to explore the concept of a uniformly wet airway that is equivalent to a partly wet airway in terms of its effect on the ventilating air. The concept is shown to be reasonable, but more complex than one might have anticipated. Finally, several useful extensions and applications of the new method are suggested.