Moisture Content on Methane Desorption Characteristics in Coal and Its Effect on Outburst Prediction
Facts have proved that coal and gas outbursts require rapid desorption in a short period of time. Due to the limitation of experimental conditions, the methane desorption characteristics in the first few seconds (0–60 s) in coals with different moisture contents have not been fully studied at presen...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6797786 |
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| author | Peng Li Yaolin Cao Xuelong Li Fakai Wang Zhongguang Sun Qinke Huang Deyou Chen |
| author_facet | Peng Li Yaolin Cao Xuelong Li Fakai Wang Zhongguang Sun Qinke Huang Deyou Chen |
| author_sort | Peng Li |
| collection | DOAJ |
| description | Facts have proved that coal and gas outbursts require rapid desorption in a short period of time. Due to the limitation of experimental conditions, the methane desorption characteristics in the first few seconds (0–60 s) in coals with different moisture contents have not been fully studied at present. In this article, the initial desorption characteristics of methane in coals with different moisture contents were investigated using a self-developed experimental setup. In order to collect enough methane pressure data for analysis and calculation, a self-developed real-time data acquisition system with a time interval of about 10 ms was used in the experiment to calculate the initial gas desorption amount and the initial gas velocity diffusion index (ΔP). Experiments show that coal with low water content and methane outburst is more dangerous than coal with high water content and outburst; and the degree of outburst of coal and methane decreases exponentially with the increase of moisture content. |
| format | Article |
| id | doaj-art-3d41f753118f40599d57261efacf2d97 |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-3d41f753118f40599d57261efacf2d972025-02-03T06:13:03ZengWileyAdvances in Civil Engineering1687-80942021-01-01202110.1155/2021/6797786Moisture Content on Methane Desorption Characteristics in Coal and Its Effect on Outburst PredictionPeng Li0Yaolin Cao1Xuelong Li2Fakai Wang3Zhongguang Sun4Qinke Huang5Deyou Chen6China Coal Technology and Engineering Group Shenyang Research Institute Co. LtdChina Coal Technology and Engineering Group Shenyang Research Institute Co. LtdCollege of Energy and Mining EngineeringCollege of Mining EngineeringState Key Laboratory of Coal Mine Disaster Dynamics and ControlCollege of Energy and Mining EngineeringCollege of Energy and Mining EngineeringFacts have proved that coal and gas outbursts require rapid desorption in a short period of time. Due to the limitation of experimental conditions, the methane desorption characteristics in the first few seconds (0–60 s) in coals with different moisture contents have not been fully studied at present. In this article, the initial desorption characteristics of methane in coals with different moisture contents were investigated using a self-developed experimental setup. In order to collect enough methane pressure data for analysis and calculation, a self-developed real-time data acquisition system with a time interval of about 10 ms was used in the experiment to calculate the initial gas desorption amount and the initial gas velocity diffusion index (ΔP). Experiments show that coal with low water content and methane outburst is more dangerous than coal with high water content and outburst; and the degree of outburst of coal and methane decreases exponentially with the increase of moisture content.http://dx.doi.org/10.1155/2021/6797786 |
| spellingShingle | Peng Li Yaolin Cao Xuelong Li Fakai Wang Zhongguang Sun Qinke Huang Deyou Chen Moisture Content on Methane Desorption Characteristics in Coal and Its Effect on Outburst Prediction Advances in Civil Engineering |
| title | Moisture Content on Methane Desorption Characteristics in Coal and Its Effect on Outburst Prediction |
| title_full | Moisture Content on Methane Desorption Characteristics in Coal and Its Effect on Outburst Prediction |
| title_fullStr | Moisture Content on Methane Desorption Characteristics in Coal and Its Effect on Outburst Prediction |
| title_full_unstemmed | Moisture Content on Methane Desorption Characteristics in Coal and Its Effect on Outburst Prediction |
| title_short | Moisture Content on Methane Desorption Characteristics in Coal and Its Effect on Outburst Prediction |
| title_sort | moisture content on methane desorption characteristics in coal and its effect on outburst prediction |
| url | http://dx.doi.org/10.1155/2021/6797786 |
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