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《Journal of China University of Mining & Technology》 2001-04
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Fire Resistance and Its Effect on Fire-Throttling During Mine Fire

WANG De ming, ZHOU Fu bao, ZHOU Yan ( College of Mineral and Energy Resources, CUMT, Xuzhou, Jiangsu 221008, China )  
The obstructive action of flame on airflow, which can make the quantity of air flowing into a tunnel decrease, was observed during the fire experiments in a ventilation network. Based on the discovery, a new concept, fire resistance, was firstly put forward. Fire resistance consists of the resistance induced by thermal expansion of the smoke and that by the flame’s obstructive action. The obtained experiment data of combustion indicate that fire resistance has a significant effect on airflow reduction. The reduction of airflow into the tunnel appears as soon as a mine fire occurs, and becomes more obvious when its size enlarges. The result is of great significance for the computer simulation of a mine fire and its rescue work.
【Fund】: 国家自然科学基金资助项目 (5 9876 0 45 ;5 9936 14 0 )
【CateGory Index】: TD752
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