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| NUMERICAL SIMULATION OF SPONTANEOUS COMBUSTION OF A COAL STOCKPILE |
| Received:September 10, 2007 |
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| DOI： |
| KeyWord:coal stockpiles; spontaneous combustion ; numerical simulation |
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LIU Xiang-jun,ZHANG Jian,Shao Min (Thermal Engineering Department,University of Science & Technology Beijing,Beijing100083,China)
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| Abstract: |
| Spontaneous combustion of coal stockpile is a key problem to be solved for safety in coal production and storage. It is very needed to get detailed knowledge of this process. In this paper, a 2D mathematical model is established to describe the spontaneous combustion process of coal stockpiles. The governing equations include heat transfer equation and oxygen transfer equation. The detailed heating - up process of a coal stockpile is obtained and the effects of different stacking types are also analysed. These results offer theoretical bases for luther studying spontaneous combustion process of coal stockpiles. |
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