Based on FDM numerical simulation research on the factors influencing heat release in wet airway

作者：Zhang Xuebo; Yang Ming^*

来源：International Journal of Heat and Technology, 2018, 36(1): 201-206.

DOI：10.18280/ijht.360127

• Heat release
• Moisture exchange
• Numerical simulation research
• Reliable methods
• Research results
• Surrounding rock
• Water evaporation
• Wetness factor

The objective of the paper is to figure out the influence factors of surrounding rock heat release in wet airway. Firstly, based on the heat and moisture exchange theory between airflow and the surrounding rock in coal mine, the more reliable method of calculating the surrounding rock heat release in wet airway is put forward in theory, and the finite difference method is applied to calculate numerical simulation results. Accordingly the change rule of surrounding rock heat release under this condition is presented. Finally the influences of ventilation time, wetness factor and the like on the surrounding rock heat release are analyzed in detail. The research results indicate that, 1) the sensible heat, latent heat and total heat loss decrease with the increase of ventilation time, the decreasing amplitude gradually small;2) wetness factor has a strong effect on surrounding rock heat release, and the sensible heat decreases with the increase of wetness factor, while the latent heat and total heat increase with it.

• 出版日期2018
• 单位Polytechnic university