摘要
本文讨论了有关煤层气体的若干热力学理论问题。根据煤层气体突出的热力学模型,作者提出煤层气体内能、膨胀能和膨胀功具有不同的概念和物理意义的观点。本文还建立了计算若干煤层气体热力学参数的方法。就影响煤层气体的突出因素而论,体系和环境的诸多因素是相当重要的,如气体成分和含量、热容、体系和环境的温度和压力等。作者还应用热力学中的“熵值判别法”提出了“煤层气体突出熵指数”,作为判断煤层气体的突出倾向性。作者认为,煤层气体的突出不仅是一种动力现象,它还是一种复杂的热力学过程。
This paper deals with problems about thermo-dynamic theory of coal-seam gases. According to the thermo-dynamic model of coal-seam gases outburst, the author points out that there are different concepts and physical significance of internal energy, expansion energy and expansion power of coal-seam gases. The author establishes a method for calculating thermo-dynamic parameters. As far as factors affecting outburst of gases are concerned, many factors of system and surrounding environment are very important, such as gas compositions and content, heat capacities, temperature and pressure of system and surroundings, etc. The author also applies the entropy discrimination of thermo-dynamics to outburst of coal-seam gases and presents 'Outburst index of coal-seam gases' for predicting proneness of outburst. The author considers that outburst of coal-seam gases is not only a dynamic phenomenon, but also a very complicated thermodynamical conversion process of energy.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1989年第2期99-112,共14页
Journal of China Coal Society
