Determine Temperature and Humidity on Airway Surface In Simulation of Strata Heat Release
The method to determine the temperature and humidity on airway surface is put forward when finite difference method is applied to simulate heat and mass transfer between surrounding rock and airflow. It is more reliable and accurate theoretically using fitting function of rock temperature distribution to calculate temperature gradient on airway surface and heat release from strata rock. The heat release and airway surface temperature calculated according to fitting function have a little difference from those by traditional method. If the relationship between saturated moisture content of air and temperature is fitted into a linear curve quite big error will be caused in simulation of heat and mass transfer between airflow and surrounding rock of the airway. The error increases with the ventilation time and wetness factor of the airway surface, and decreases with the increase of airflow humidity. It is recommended that the relationship between saturated moisture content of air and temperature is fitted into a quadratic curve.
airway surface temperature moisture water evaporation strata heat release wetness factor
GAO Jianliang ZHANG Xuebo XU Kunlun HOU Sanzhong
School of Safety Science & Engineering, Henan Polytechnic University, Jiaozuo, 454003, Henan, China
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
1714-1719
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）