| 功率超声致煤层瓦斯升温机理 |
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| 引用本文： | 张春会,李其廉,于永江,赵全胜.功率超声致煤层瓦斯升温机理[J].辽宁工程技术大学学报(自然科学版),2009,28(4). |
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| 作者姓名： | 张春会 李其廉 于永江 赵全胜 |
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| 作者单位： | 1. 河北科技大学建筑工程学院,河北,石家庄,050018
2. 辽宁工程技术大学力学与工程学院,辽宁,阜新,123000 |
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| 基金项目： | 国家自然科学重点基金资助项目，河北省科技基金资助项目(07276947).河北科技大学杰出引进人才项目和校立基金资助项目 |
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| 摘 要： | 为了分析功率超声对煤层瓦斯抽放率的影响,基于线性超声学原理,推导了功率超声在煤层瓦斯中传播的吸收致能量损耗公式及热传导诱发的能量损耗公式,并进而推导了功率超声下煤层瓦斯升温计算公式.利用试验资料研究了煤体升温对瓦斯吸附/解吸的影响,在瓦斯吸附量.温度的拟合关系式基础上,建立了功率超声诱发煤层瓦斯升温致瓦斯解吸量的计算公式.研究表明,功率超声致煤层瓦斯升温作用能提高煤层瓦斯的解吸率和抽放率.
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| 关 键 词： | 功率超声 升温 煤层瓦斯解吸 |
Power ultrasound-induced heating mechanism of gas in coal seam |
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| ZHANG Chunhui,LI Qilian,YU Yongjiang,ZHAO Quansheng.Power ultrasound-induced heating mechanism of gas in coal seam[J].Journal of Liaoning Technical University (Natural Science Edition),2009,28(4). |
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| Authors: | ZHANG Chunhui LI Qilian YU Yongjiang ZHAO Quansheng |
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| Institution: | ZHANG Chunhui1,LI Qilian1,YU Yongjiang2,ZHAO Quansheng (1. School of Civil Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China,2. Department of Mechanics and Engineering,Liaoning Technical University,Fuxin 123000,China) |
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| Abstract: | To analyse the effect of power ultrasound on methane recovery in coal seams,the equations for the energy loss in coal seam induced by power ultrasound propagation absorption and heat transfer were deduced based on linear ultrasound. Furthermore,the formula for calculating seam gas temperature increase due to ultrasonic power was obtained. The effects of gas heating on absorption/desorption was also investigated using test data. By fitting the equation curve of gas absorption vs. temperature,the formula for ... |
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| Keywords: | power ultrasound heating gas desorption |
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