| Multi-dimensional Modeling of the Application of Catalytic Combustion to Homogeneous Charge Compression Ignition Engine |
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| 作者姓名： | Wen Zeng~* MaoZhao Xie |
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| 作者单位： | Wen Zeng~* MaoZhao XieDepartment of Power Engineering，Dalian University of Technology，Dalian 116024，China |
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| 摘 要： | The detailed surface reaction mechanism of methane on rhodium catalyst was analyzed.Comparisons betweennumerical simulation and experiments showed a basic agreement.The combustion process of homogeneouscharge compression ignition(HCCI)engine whose piston surface has been coated with catalyst(rhodium andplatinum)was numerically investigated.A multi-dimensional model with detailed chemical kinetics was built.The effects of catalytic combustion on the ignition timing,the temperature and CO concentration fields,and HC,CO and NO_x emissions of the HCCI engine were discussed.The results showed the ignition timing of the HCCIengine was advanced and the emissions of HC and CO were decreased by the catalysis.
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| 关 键 词： | 技术性能 机械 压缩机 燃烧 |
| 收稿时间： | 15 March 2006 |
Multi-dimensional modeling of the application of catalytic combustion to homogeneous charge compression ignition engine |
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| Wen Zeng* MaoZhao Xie.Multi-dimensional Modeling of the Application of Catalytic Combustion to Homogeneous Charge Compression Ignition Engine[J].Journal of Thermal Science,2006,15(4):371-376. |
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| Authors: | Wen Zeng Dr Eng MaoZhao Xie |
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| Affiliation: | (1) Department of Power Engineering, Dalian University of Technology, Dalian, 116024, China |
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| Abstract: | The detailed surface reaction mechanism of methane on rhodium catalyst was analyzed.Comparisons between numerical simulation and experiments showed a basic agreement.The combustion process of homogeneous charge compression ignition(HCCI)engine whose piston surface has been coated with catalyst(rhodium and platinum)was numerically investigated.A multi-dimensional model with detailed chemical kinetics was built. The effects of catalytic combustion on the ignition timing,the temperature and CO concentration fields,and HC, CO and NO_x emissions of the HCCI engine were discussed.The results showed the ignition timing of the HCCI engine was advanced and the emissions of HC and CO were decreased by the catalysis. |
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| Keywords: | catalytic combustion homogeneous charge compression ignition(HCCI) CFD methane detailed chemical kinetics |
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