| 膜法富氧进气改善直喷式柴油机的起动性能 |
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| 引用本文： | 肖广飞,乔信起,孙恺,黄震,陈宗蓬. 膜法富氧进气改善直喷式柴油机的起动性能[J]. 上海交通大学学报, 2007, 41(10): 1629-1632 |
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| 作者姓名： | 肖广飞 乔信起 孙恺 黄震 陈宗蓬 |
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| 作者单位： | 上海交通大学,机械与动力工程学院,上海,200240;上海空气之星工业气体设备有限公司,上海,200949 |
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| 摘 要： | 在一台四冲程直喷式柴油机上进行了富氧进气改善起动性能的试验研究.使用膜法富氧系统为柴油机供应φO2,in=23%,25%和27%的3种富氧气体,实时测量起动过程中缸内压力和烟度、NOx、HC、CO排放,并与φO2,in=21%进气(环境空气)时所测数据进行比较.结果表明:采用富氧进气能够提高柴油机的起动性能,使之更快进入怠速暖机阶段;同时显著降低烟度、HC、CO排放,但NOx排放增加.
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| 关 键 词： | 富氧进气 柴油机 起动性能 排放 |
| 文章编号： | 1006-2467（2007）10-1629-04 |
| 修稿时间： | 2006-11-03 |
Improvement on Starting Performance of a DI Diesel Engine by Using Membrane-Based Oxygen-Enriched Intake Air |
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| XIAO Guang-fei,QIAO Xin-qi,SUN Kai,HUANG Zhen,CHEN Zong-peng. Improvement on Starting Performance of a DI Diesel Engine by Using Membrane-Based Oxygen-Enriched Intake Air[J]. Journal of Shanghai Jiaotong University, 2007, 41(10): 1629-1632 |
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| Authors: | XIAO Guang-fei QIAO Xin-qi SUN Kai HUANG Zhen CHEN Zong-peng |
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| Affiliation: | 1. School of Mechanical Eng. , Shanghai Jiaotong Univ. , Shanghai 200240, China; 2. Shanghai Airstar Gas Separation Co. , Ltd. , Shanghai 200949, China |
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| Abstract: | The experiments were carried out on a four-stroke,DI diesel engine.The engine was supplied with intake air containing 21%(oxygen level of ambient air),23%, 25% and 27% oxygen(by volume) from a membrane-based oxygen-enrichment system,respectively.The in-cylinder pressure and time-resolved emissions data were recorded and analyzed.The test results indicate that the use of oxygen-enriched intake air considerably improved the starting performance of the DI diesel engine.The engine can achieve steady operation more quickly.The smoke,HC and CO emissions decrease evidently while NO_x emissions increase with the increase of oxygen content in intake air. |
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| Keywords: | oxygen-enriched intake air diesel engine starting performance emissions |
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