| EGR对正丁醇-柴油混合燃料燃烧和排放的影响 |
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| 引用本文： | 王站成,吴健,商伟伟,徐斌,刘伊滨. EGR对正丁醇-柴油混合燃料燃烧和排放的影响[J]. 车用发动机, 2016, 0(6). DOI: 10.3969/j.issn.1001-2222.2016.06.012 |
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| 作者姓名： | 王站成 吴健 商伟伟 徐斌 刘伊滨 |
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| 作者单位： | 河南科技大学车辆与交通工程学院,河南 洛阳,471003 |
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| 基金项目： | 河南省国际合作项目(144300510039) |
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| 摘 要： | 依据发动机台架试验数据，利用 Fire 软件建立计算模型，并验证了模型的准确性，研究了不同比例的正丁醇‐柴油混合燃料在不同 EGR 率下的燃烧和排放特性。研究结果表明：通过向柴油中掺混正丁醇可以加快燃烧速率，改善 EGR 对燃烧过程带来的负面影响；采用较高的 EGR 率，可以抑制 NO x 的生成，但混合燃料携氧燃烧，对 NO x 的生成有促进作用，但总体来说 NO x 的最终生成略有降低；Soot 的最终生成量随着 EGR 率的增大而增加，通过添加含氧燃料可以有效地降低 Soot 的最终生成。
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| 关 键 词： | 正丁醇 柴油 混合燃料 废气再循环 数值模拟 燃烧 排放 |
Influence of EGR on Combustion and Emission of N-Butanol and Diesel Blended Fuel |
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| WANG Zhancheng,WU Jian,SHANG Weiwei,XU Bin,LIU Yibin. Influence of EGR on Combustion and Emission of N-Butanol and Diesel Blended Fuel[J]. Vehicle Engine, 2016, 0(6). DOI: 10.3969/j.issn.1001-2222.2016.06.012 |
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| Authors: | WANG Zhancheng WU Jian SHANG Weiwei XU Bin LIU Yibin |
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| Abstract: | The calculation model was built and verified with the Fire software according to engine bench test data and then the combustion and emission characteristics of n‐butanol and diesel blended fuel under different EGR rates were researched with the model .The results show that the addition of n‐butanol can accelerate the combustion rate and improve the negative effect of EGR during the combustion process .Higher EGR rate can suppress the formation of NO x ,but the carried oxygen from burn‐ing blended fuel promotes the formation of NO x ,and finally the whole NO x emission still shows the trend of reduction .The fi‐nal soot emission increases with the increase of EGR rate ,but reduces effectively after adding the oxygenated fuel . |
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| Keywords: | n-butyl alcohol diesel blended fuel EGR numerical simulation combustion emission |
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