| 极低浓度甲烷高温氧化宏观参量数值模拟 |
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| 引用本文： | 聂百胜,宫婕,盖波青,葛泽,朱其萌. 极低浓度甲烷高温氧化宏观参量数值模拟[J]. 北京理工大学学报, 2018, 38(S2): 190-192 |
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| 作者姓名： | 聂百胜 宫婕 盖波青 葛泽 朱其萌 |
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| 作者单位： | 中国矿业大学 (北京)应急管理与安全工程学院, 北京 100083;北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081,中国矿业大学 (北京)应急管理与安全工程学院, 北京 100083,中国矿业大学 (北京)应急管理与安全工程学院, 北京 100083,中国矿业大学 (北京)应急管理与安全工程学院, 北京 100083,中国矿业大学 (北京)应急管理与安全工程学院, 北京 100083 |
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| 基金项目： | 中央高校基本科研业务费资助项目（2009KZ03）；华北科技学院河北省矿井灾害防治重点实验室开放基金（KJZH2017K01） |
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| 摘 要： | 为了研究极低浓度甲烷的高温氧化特性，通过CHEMKIN模拟软件对甲烷浓度为0.5%、1%、2%、3%、4%的5种极低浓度甲烷气体高温氧化反应进行数值模拟，着重分析高温氧化后压力、温度以及反应物和生成物的变化规律.模拟结果表明，极低浓度甲烷高温氧化过程中，甲烷的体积分数急剧下降；生成的一氧化碳体积分数先急剧上升，然后迅速降低至零.二氧化碳体积分数、温度及压力均急剧上升，然后趋于稳定；且甲烷混合气体高温氧化后二氧化碳体积分数、温度及压力最终值与一氧化碳体积分数的最大值均随着甲烷体积分数的增大而逐渐增大.
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| 关 键 词： | 极低浓度甲烷 高温氧化 宏观参量 数值模拟 |
| 收稿时间： | 2018-12-01 |
Macro-Parameters Numerical Simulation of Ultra-Low Concentration Methane High Temperature Oxidation |
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| NIE Bai-sheng,GONG Jie,GE Bo-qing,GE Ze and ZHU Qi-meng. Macro-Parameters Numerical Simulation of Ultra-Low Concentration Methane High Temperature Oxidation[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2018, 38(S2): 190-192 |
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| Authors: | NIE Bai-sheng GONG Jie GE Bo-qing GE Ze ZHU Qi-meng |
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| Affiliation: | School of Emergency Management and Safety Engineering, China University of Mining & Technology(Beijing), Beijing 100083, China;State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China,School of Emergency Management and Safety Engineering, China University of Mining & Technology(Beijing), Beijing 100083, China,School of Emergency Management and Safety Engineering, China University of Mining & Technology(Beijing), Beijing 100083, China,School of Emergency Management and Safety Engineering, China University of Mining & Technology(Beijing), Beijing 100083, China and School of Emergency Management and Safety Engineering, China University of Mining & Technology(Beijing), Beijing 100083, China |
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| Abstract: | In order to study the high temperature oxidation characteristics of ultra-low concentration methane, the high temperature oxidation of five ultra-low concentration methane gases with concentration of 0.5%, 1%, 2%, 3%, 4% was simulated by CHEMKIN software. The variation of pressure, temperature, reactants and resultants after high temperature oxidation was analyzed. The simulation results show that the volume fraction of methane drops sharply with the increase of time. The volume fraction of carbon monoxide produced rises sharply and then drops rapidly to zero. Carbon dioxide volume fraction, temperature and pressure rise sharply and then tend to stabilize. Moreover, temperature, pressure, the final value of carbon dioxide volume fraction and the maximum volume fraction value of carbon monoxide increase with the increase of methane volume fraction. |
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| Keywords: | ultra-low concentration high temperature oxidation macroscopic parameter numerical simulation |
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