The Thermodynamic Model of Spontaneous Combustion of Coal Field Outcrop under the Control of Forced Convection

摘要：

The coalfield spontaneous combustion law is significant to the prevention and control of coalfield spontaneous fires. This paper analyzed the thermodynamic characters of coalfield outcrop fires and studied the dynamic change of fluid field, pressure field and temperature field of gases in coal and rock under the condition of forced convection heat transfer. By means of the theories of chemical kinetics, thermal fluid and combustion, thermodynamic model of coalfield outcrop spontaneous combustion, which includes pressure field equation, oxygen concentration field equation and heat exchange equation of gases between coal (rock) and fractures (voids), were set up. The thermodynamic model reflected the migration characters of spontaneous combustion heat sources of coalfield outcrop in coal and rock media.

关键词： coalfield outcrop spontaneous combustion thermodynamic model forced convection

作者: CHEN Guoxin ZHOU Xinquan WANG Haiyan

作者单位: School of resources and safety engineering, China University of Mining & Technology, Beijing, 100083, China

会议类型: 国际会议

会议名称: 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)

会议地点: 河南焦作

会议语种:英文

页码: 1754-1758

在线出版日期: 2007-04-17（万方平台首次上网日期，不代表论文的发表时间）