| 煤层气扩散燃烧性能影响因素分析 |
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| 引用本文： | 乔伟彪,马贵阳,孟向楠,冯云飞.煤层气扩散燃烧性能影响因素分析[J].北京石油化工学院学报,2012,20(2):65-68. |
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| 作者姓名： | 乔伟彪 马贵阳 孟向楠 冯云飞 |
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| 作者单位： | 中机国际工程设计研究院有限公司华东分院,江苏南京210042;辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001;辽宁石油化工大学石油天然气工程学院,辽宁抚顺,113001 |
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| 基金项目： | 辽宁省自然基金项目，辽宁省科学技术项目 |
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| 摘 要： | 基于计算流体力学的涡耗散模型,采用有限容积法建立组分燃烧与扩散数学模型。针对长为2.9m,直径为0.5m的喷口型燃烧器进行数值模拟。研究表明:随着煤层气中甲烷浓度的增加,氧气体积分数的峰值逐渐右移,非预混系统的最高温度与平均温度都有所增加;随着速度比的逐渐增加,煤层气中甲烷燃烧较快;随着过量空气系数的增加,非预混系统燃烧温度最大值逐渐右移。该结果可为生产实际提供一定的理论指导。
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| 关 键 词： | 喷口型燃烧器 甲烷浓度 速度比 过量空气系数 数值模拟 |
An Analysis on the Factors Influencing the Diffusion and Burn Performance of the CBM |
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| Qiao Weibiao
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Ma Guiyang
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Meng Xiangnan
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Feng Yunfei.An Analysis on the Factors Influencing the Diffusion and Burn Performance of the CBM[J].Journal of Beijing Institute of Petro-Chemical Technology,2012,20(2):65-68. |
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| Authors: | Qiao Weibiao Ma Guiyang Meng Xiangnan Feng Yunfei |
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| Affiliation: | 1.China International Engineering Design and Research Institute Company Limited in East China branch,Jiangsu Nanjing 210042,China;2.Academy of Petrol and Natural Gas Engineering,Liaoning Petroleum Chemical University,Fushun 113001,China) |
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| Abstract: | Based on the model of the FLUENT vortex dissipation,using the method of the limited volumetry,the mathematics model of the burning and diffusing phase has been built.And then we simulate nozzle combustor numerically,whose length is 2.9 meter and diameter is 0.5 meter.The research indicates that with the increasing of the methane concentration in the CBM,the peak concentration of the oxygen moves to the right,and the maximum temperature and the average temperature increase gradually in the CBM.With the speed ratio increases,the methane burns faster.With excess air coefficient increases,the maximum temperature in the non-premixed system moves to the right.This result provides the theory instruction for the actual product. |
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| Keywords: | nozzle combustor methane concentration speed ratio excess air coefficient numerical simulation |
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