1. CH_4-air mixtures are explosive between 5% (LEL) and 15% (UEL) CH_4 by volume 2.CH_4 is trapped during coal formation and released during the mining process 3. Many ignition sources in a longwall mine 3.1 Most common - frictional ignition caused by the shearer 4. CH_4 related ...
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Additionally, CH4 is the main constituent of natural gas (NG) [4] which has become the dominant domestic and industrial fuel. The explosion limit of CH4 concentration is between 5% (Lower Explosion Limit, LEL) and 15% (Upper Explosion Limit, UEL) [5]. Gas explosions in coal mines, where...
The lower flammability limit (LEL) of methane was found to be 4.6 ± 0.3% and the upper flammability limit (UEL) of methane was obtained 15.8 ± 0.4% from Acknowledgement This work was supported by the Department of Resources Energy and Tourism, Australia (grant number – G1201029) and ACA...
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CH4 explosion triangles under the action of the FESs were drawn, and the explosion hazard degree (F) was determined. The results reveal that the addition of C6F12O and C3F7H reduces the upper explosion limit (UEL) and lower explosion limit (LEL) of CH4, with increased concentrations of C6...
Water vapor also is the major cause of another phenomenon that the LEL curve and the UEL curve never meet with the increase of gas concentration.doi:10.1007/s11431-012-4771-3WangQiuHongWenHuWangQingSongJinHuaSP Science China PressScience China Technological SciencesInhibiting effect of Al(OH)3 ...
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