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| 化学反应机理和弥散效应对多孔介质内燃烧过程的影响 | |
| 引用本文： | 赵平辉,陈义良,刘明侯,张根烜,丁敏. 化学反应机理和弥散效应对多孔介质内燃烧过程的影响[J]. 中国科学技术大学学报, 2006, 36(10): 1051-1056 |
| 作者姓名： | 赵平辉 陈义良 刘明侯 张根烜 丁敏 |
| 作者单位： | 中国科学技术大学热科学与能源工程系,安徽合肥,230027 |
| 摘 要： | 采用一维反应流模型,考虑不同的化学反应机理和弥散效应的影响,数值求解多孔介质内的燃烧过程.通过对火焰结构,火焰传播速度及污染物的计算与分析,得到了不同机理的优缺点及适用范围,分析了弥散效应的影响.结果表明,当量比较小时,化学反应机理和弥散效应的影响不大;当量比较大时,结果差别较大,需要仔细选择化学反应机理和考虑弥散效应. |
| 关 键 词： | 多孔介质 超绝热火焰温度 火焰传播速度 化学反应机理 弥散效应 |
| 文章编号： | 0253-2778(2006)10-1051-06 |
| 收稿时间： | 2006-03-22 |
| 修稿时间： | 2006-04-30 |
Investigation of combustion in a porous medium for different reaction mechanisms and dispersion effects |
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| ZHAO Ping-hui,CHEN Yi-liang,LIU Ming-hou,ZHANG Gen-xuan,DING Min. Investigation of combustion in a porous medium for different reaction mechanisms and dispersion effects[J]. Journal of University of Science and Technology of China, 2006, 36(10): 1051-1056 | |
| Authors: | ZHAO Ping-hui CHEN Yi-liang LIU Ming-hou ZHANG Gen-xuan DING Min |
| Affiliation: | Department of Thermal Science and Energy Engineering , University of Science and Technology of China, Hefei 230027, China |
| Abstract: | One-dimensional reacting fluid model was used to simulate the combustion process with different reaction mechanisms. The advantages and disadvantages as well as the applicability of various mechanisms were obtained by analyzing flame structure, flame propagation speed and emissions. Dispersion was also analyzed. It is concluded that reaction mechanisms and dispersion do not affect the results much with a lower equivalence, while with a larger equivalence ratio, the results are affected greatly. Therefore, prudence is needed when considering reaction mechanisms and dispersion effects. |
| Keywords: | porous medium superadiabatic flame temperature flame propagation speed chemistry reaction mechanism dispersion effects |
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