| 火花点火发动机燃用天然气掺氢混合燃料循环变动研究 |
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| 引用本文： | 陈浩,刘兵,王金华,黄佐华,苗海燕,王锡斌,蒋德明.火花点火发动机燃用天然气掺氢混合燃料循环变动研究[J].内燃机学报,2009,27(1). |
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| 作者姓名： | 陈浩 刘兵 王金华 黄佐华 苗海燕 王锡斌 蒋德明 |
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| 作者单位： | 西安交通大学,动力工程多相流国家重点实验室,陕西,西安,710049
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| 基金项目： | 国家自然科学基金，国家重点基础研究计划，国家高技术研究发展计划(863计划) |
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| 摘 要： | 在火花点火天然气发动机上开展了不同掺氢比天然气掺氢混合燃料(氢气在混合燃料中的体积分数为0%、12%、23%、30%和40%)循环变动的试验研究,试验工况点对应于发动机中低负荷.分析了掺混氢气对天然气发动机循环变动的影响.研究结果表明:在稀燃条件下,随着掺氧比的增加,缸内最高压力、最大压力升高率以及平均指示压力均增加.随着掺氢比增加,缸内最高压力与其对应的曲轴转角之间和最大压力升高率与其对应的曲轴转角之间的相关性更强.在化学计量比或浓燃时,掺混氢气可以维持平均指示压力的循环变动系数在较低的水平.在稀燃时,平均指示压力的循环变动系数随掺氢比增加而降低.平均指示压力的循环变动系数达到10%所对应的过量空气系数随掺氢比增加而增加,表明天然气掺混氢气扩展了天然气发动机的稳定稀燃极限.
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| 关 键 词： | 天然气 氢气 循环变动 火花点火发动机 |
Study of Cycle-by-Cycle Variations of a Spark Ignition Engine Fueled with Natural Gas/Hydrogen Blends |
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| CHEN Hao,LIU Bing,WANG Jin-hua,HUANG Zuo-hua,MIAO Hai-yan,WANG Xi-bin,JIANG De-ming.Study of Cycle-by-Cycle Variations of a Spark Ignition Engine Fueled with Natural Gas/Hydrogen Blends[J].Transactions of Csice,2009,27(1). |
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| Authors: | CHEN Hao LIU Bing WANG Jin-hua HUANG Zuo-hua MIAO Hai-yan WANG Xi-bin JIANG De-ming |
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| Affiliation: | State Key Laboratory of Multiphase Flow in Power Engineering;Xi'an Jiaotong University;Xi'an 710049;China |
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| Abstract: | Study of cycle-by-cycle variations of a spark ignition engine fueled with natural gas/hydrogen blends was investigated.Natural gas/hydrogen blends with hydrogen volumetric fraction in the fuel blends of 0%,12%,23%,30% and 40% were experimentally studied.The effect of hydrogen addition on the cycle-by-cycle variations of the natural gas engine operation was analyzed.The results showed that the maximum pressure rise,the maximum rate of pressure rise and the indicated mean effective pressure increased and thei... |
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| Keywords: | Natural gas Hydrogen Cycle-by-cycle variations Spark ignition engine |
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