{"title":"煤矿瓦斯异常区气煤耦合自燃流场数值模拟","authors":"Weifeng Wang, Jun Deng, Y. Hou","doi":"10.1145/3036331.3036360","DOIUrl":null,"url":null,"abstract":"In order to study the coupled disaster risk of regional spatial distribution of flow gas and coal spontaneous combustion in gas abnormal area, the model of coupling goaf gas and coal spontaneous combustion was established. Under the conditions of room temperature without oxygen consumption, different intensity of gas emission, different ventilation, and the concentration field of CH4 and O2 in goaf were simulated. The results indicated that as the increase of gas emissions, gas replacement and coal-oxygen consumption can reduce the oxygen concentration in deep of goaf. The range of oxidation zone of coal spontaneous combustion is decreased by numerous amount of gas emission from goaf. It provides a theoretical basis for obtaining the spatial distribution of dangerous zone for coupling disaster of gas and coal spontaneous combustion in the gas anomaly area in coalmine.","PeriodicalId":22356,"journal":{"name":"Tenth International Conference on Computer Modeling and Simulation (uksim 2008)","volume":"6 1","pages":"73-77"},"PeriodicalIF":0.0000,"publicationDate":"2017-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Numerical Simulation on flow fields for Coupling Gas and Coal Spontaneous Combustion in Gas Anomaly Area in coalmine\",\"authors\":\"Weifeng Wang, Jun Deng, Y. Hou\",\"doi\":\"10.1145/3036331.3036360\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In order to study the coupled disaster risk of regional spatial distribution of flow gas and coal spontaneous combustion in gas abnormal area, the model of coupling goaf gas and coal spontaneous combustion was established. Under the conditions of room temperature without oxygen consumption, different intensity of gas emission, different ventilation, and the concentration field of CH4 and O2 in goaf were simulated. The results indicated that as the increase of gas emissions, gas replacement and coal-oxygen consumption can reduce the oxygen concentration in deep of goaf. The range of oxidation zone of coal spontaneous combustion is decreased by numerous amount of gas emission from goaf. It provides a theoretical basis for obtaining the spatial distribution of dangerous zone for coupling disaster of gas and coal spontaneous combustion in the gas anomaly area in coalmine.\",\"PeriodicalId\":22356,\"journal\":{\"name\":\"Tenth International Conference on Computer Modeling and Simulation (uksim 2008)\",\"volume\":\"6 1\",\"pages\":\"73-77\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-01-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Tenth International Conference on Computer Modeling and Simulation (uksim 2008)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1145/3036331.3036360\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tenth International Conference on Computer Modeling and Simulation (uksim 2008)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/3036331.3036360","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Numerical Simulation on flow fields for Coupling Gas and Coal Spontaneous Combustion in Gas Anomaly Area in coalmine
In order to study the coupled disaster risk of regional spatial distribution of flow gas and coal spontaneous combustion in gas abnormal area, the model of coupling goaf gas and coal spontaneous combustion was established. Under the conditions of room temperature without oxygen consumption, different intensity of gas emission, different ventilation, and the concentration field of CH4 and O2 in goaf were simulated. The results indicated that as the increase of gas emissions, gas replacement and coal-oxygen consumption can reduce the oxygen concentration in deep of goaf. The range of oxidation zone of coal spontaneous combustion is decreased by numerous amount of gas emission from goaf. It provides a theoretical basis for obtaining the spatial distribution of dangerous zone for coupling disaster of gas and coal spontaneous combustion in the gas anomaly area in coalmine.
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