广东电力Issue(5)：26-31,6.DOI:10.3969/j.issn.1007-290X.2015.05.006
煤堆自燃趋势的数值模拟方法研究
Research on Numerical Simulation Method for Spontaneous Combustion Trend of Coal Dump
摘要
Abstract
Aiming at prediction problem of spontaneous combustion trend of coal dump,prediction model of spontaneous combustion trend of coal dump for intercoupling of dynamics model of coal low temperature oxidation,equivalent equation of heat conduction of coal dump and oxygen diffusion equation for coal dump hole were established.Coordinate transformation method was used for trans-forming fracture section of coal dump into regular calculation plane for discretization treatment and solve the discretization algebraic equation.Under the condition of coal dump surface as convective boundary,temperature field of coal dump,distribution of oxygen concentration field and change rule with time was worked out.Preliminary analysis indicates that this model could reasonably explain spontaneous combustion trend of coal dump and the firing position.关键词
煤堆/自燃/数值模拟/坐标变换Key words
coal dump/spontaneous combustion/numerical simulation/coordinate transformation分类
矿业与冶金引用本文复制引用
陈刚,卢健,苏伟,范圣平,陈天生..煤堆自燃趋势的数值模拟方法研究[J].广东电力,2015,(5):26-31,6.基金项目
中国南方电网有限责任公司科研项目(K-GD2012-390) （K-GD2012-390）
