摘要
利用计算机编程对湿煤堆非稳态自热过程的一维模型进行差分计算 ,求得不同煤层厚度湿煤堆内的非稳态温度场 .结果表明 ,采用自热过程的非稳态数学模型计算 ,可以剖析影响湿煤堆自热的因素 ,对评价实际湿煤堆的自燃危险性有一定的指导作用 .
This paper has obtained a transient temperature distribution in the coal pile using computer programs to solve one dimensional differential difference equations for the transient self heating process of the pile. The results indicates that the mathematical model for the transient self heating process can describes properly the factors affecting the self heating of coal. The conclusions of this calculation have a theoretical guidance to evaluate the spontaneous risk of a real stockpile of coal.
出处
《煤炭转化》
CAS
CSCD
2000年第3期67-71,共5页
Coal Conversion
基金
国家自然科学基金!( 5 98760 47)
关键词
湿煤堆
非稳态自热过程
温度场
差分方程
燃烧
moist coal stock pile, transient self heating process, temperature distribution, differential difference equations
