计算非稳定传热系数的新方法

A New Method for Calculating the Instable Heat Transfer Coefficient

在矿井地热预测中,矿井风流与围岩之间的非稳定传热系数是传热计算的重要参数。作者提出井巷围岩地温场温度分布规律和非稳定传热系数的解析式,阐明其本质及其影响因素的关系。经计算机的模拟实例证明,新的解析式精度较高,简便实用。

In mine geothermal prediction, the instable heat transfer coefficient is an important parameter for heat transfer (between country rock and air flow) computation. In this paper the rock temperature distribution in the geothermal field has been presented. The analytic formula of the instable heat transfer coefficient has been derived, thus exponds the relationships between its nature and influencing factors. Practice showed that the analytic formula is accurate, simple and available.