Infrared measurement of temperature field in coal gas desorption

查看全文 作　　者：Liu [1,2]Jikun;Wang [1]Cuixia;He [1,2]Xueqiu;Li [1]Shugang

机构地区：[1]School of Energy and Resource,Xi'an University of Science and Technology;[2]Faculty of Resources & Safety Engineering,China University of Mining & Technology

出　　处：《International Journal of Mining Science and Technology》索引2014年第24卷第1期,共5页

基　　金：provided by the National Natural Science Foundation of China (No.51174157);the Doctor Start-up Fund of Xi’an University of Science and Technology of China (No.2013QDJ005);the Research Development Fund of Xi’an University of Science and Technology of China (No.201244) 摘　　要：In order to reveal the temperature change in coal gas desorption process,the temperature variation in coal gas desorption process under different particle sizes is analyzed with infrared thermal imager.The infrared video signals obtained by the experiment are processed with SAT.Then the infrared radiation signals are processed by EMD with Hilbert–Huang and the infrared radiation noise is effectively removed.The research results show that the desorption process,with the change of the temperature,is an endothermic process.The coal absorbs heat when the gas is desorbed and the temperature drops.The coal body temperature drop range is obviously related to coal particle size.The smaller the particle size is,the bigger the temperature drop becomes.The temperature variation curves in the process of coal gas desorption under different particle sizes are fitted,and they comply with the exponential function.The research results lay the theoretical and experimental foundation for non-contact prediction on working face of coal and gas outburst with infrared thermal image technology. 关键词：瓦斯解吸红外测量煤粒度温度场红外辐射信号红外热成像技术温度变化红外热成像仪

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Infrared measurement of temperature field in coal gas desorption

参考文献(16)

引证文献(7)

耦合文献(210)

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