Thermodynamic model of coal and gas outbursts

被引：0
|
作者：
Yan, AH [1 ]
Liu, MJ [1 ]
Ding, W [1 ]
Xu, K [1 ]
机构：
[1] China Dev Res Consulting Ctr Coal Ind, Beijing 100713, Peoples R China
来源：
PROCEEDINGS IN MINING SCIENCE AND SAFETY TECHNOLOGY | 2002年
关键词：
coal and gas outburst; thermodynamic model; polytropic index gas expansion energy;
D O I：
暂无
中图分类号：
TD [矿业工程];
学科分类号：
0819 ;
摘要：
In this thesis, using self-designed coal and gas outburst experimental system, based on the laboratory tests and theoretical analysis, temperature variation of coal in coal and gas outburst process was studied, and the thermodynamic model of coal and gas outbursts was established. It proved that the process of coal and gas outbursts was not an adiabatic process accepted by most researchers but a polytropic process that was nearly an isotherm process. The polytropic index can be calculated according to the experiment data of coal temperature. The free gas expansion energy and adsorbed gas energy could be calculated by using polytropicindex.
引用
收藏
页码：660 / 665
页数：6
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