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《Coal Science and Technology》 2012-01
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Analysis and Application of Mine Air Thermal Absorption Capacity

CHU Zhao-xiang1,2,JI Jian-hu1,2,ZHANG Xi-jun1,2,CHEN Zi-hu1,2(1.National Key Laboratory of Gas Disaster Detecting,Preventing and Emergency,Chongqing 400037,China; 2.Chongqing Research Insitute,China Coal Technology and Engineering Group,Chongqing 400037,China)  
In consideration of the air temperature,moisture,enthalpy and other parameters,the mine air absorption capacity was provided to judge the mine working thermal environment.When the mine air absolute thermal absorption capacity was negative value or the relative thermal absorption capacity was over 100%,the paper held that the mine working thermal environment was over the related regulations and the cooling measures should be taken necessarily.Taking Jining No.2 Mine of Shandong as an example,a measurement and analysis was conducted on the air thermal absorption capacity both at winter and summer in the underground mine.The results showed that the air thermal absorption capacity in the underground mine and the general air thermal parameters including the temperature,moisture and other variation tendency would be by contraries.At the air incoming and the ventilation sections,the thermal absorption capacity would be steadily reduced until the lowest capacity at the exit of the coal mining face and would be a minus value.
【CateGory Index】: TD727
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