| 掺氢比对低热值气体发动机燃烧性能的影响 |
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| 引用本文： | 张欣,李从心,胡准庆.掺氢比对低热值气体发动机燃烧性能的影响[J].中国公路学报,2011(5). |
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| 作者姓名： | 张欣 李从心 胡准庆 |
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| 作者单位： | 北京交通大学机械与电子控制工程学院; |
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| 基金项目： | 国家自然科学基金项目(50976012) |
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| 摘 要： | 基于台架试验开展了发动机燃用2种典型低热值气体燃料(煤层气、沼气)掺混氢气燃烧性能的试验研究,分析了掺氢比对发动机燃烧特性参数的影响和对低热值气体发动机燃烧稳定性的影响。结果表明:低热值气体掺混氢气后,改善了低热值气体发动机的燃烧性能,最大缸压值上升,其对应的曲轴转角前移,燃料燃烧的火焰发展期大幅降低;随着掺氢比的增加,发动机平均指示压力更加集中分布在均值附近,且掺氢比越高,效果越明显。
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| 关 键 词： | 汽车工程 发动机 台架试验 燃烧性能 低热值气体 掺氢比 循环变动 |
Effect of Hydrogen Addition Fraction on Combustion Performance of Low Heat Value Gas Engine |
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| ZHANG Xin,LI Cong-xin,HU Zhun-qing.Effect of Hydrogen Addition Fraction on Combustion Performance of Low Heat Value Gas Engine[J].China Journal of Highway and Transport,2011(5). |
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| Authors: | ZHANG Xin LI Cong-xin HU Zhun-qing |
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| Institution: | ZHANG Xin,LI Cong-xin,HU Zhun-qing(School of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing 100044,China) |
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| Abstract: | Based on bench test,combustion performance tests of 2 typical low heat value(LHV) gas fuels,i.e.,coal seam gas and biogas mixed with hydrogen for engine were studied.The influences of hydrogen addition fraction on engine combustion performance parameters and combustion stability of LHV gas engine were analyzed respectively.The results show that the hydrogen addition to LHV gas can improve the combustion performance of the LHV gas engine.The maximal pressure increases,the crank angle positions of the maximal... |
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| Keywords: | automotive engineering engine bench test combustion performance LHV gas hydrogen addition fraction cycle variation |
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