| 生物柴油碳烟特性的可视化研究 |
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| 引用本文： | 何旭,马骁,吴复甲,王建昕.生物柴油碳烟特性的可视化研究[J].内燃机工程,2009,30(2). |
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| 作者姓名： | 何旭 马骁 吴复甲 王建昕 |
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| 作者单位： | 清华大学,汽车安全与节能国家重点实验室,北京,100084 |
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| 摘 要： | 在1台光学可视化发动机上,采用高速摄影法,对不同掺混比例的柴油/生物柴油混合燃料进行研究,获取缸内燃烧火焰图像,通过双色法得到表征缸内碳烟总体分布的KL因子,分析了生物柴油对缸内燃烧过程和碳烟生成特性的影响.研究结果表明,随着生物柴油掺入比例的增加,最高燃烧压力逐渐降低,滞燃期相对延长,燃烧持续期缩短,火焰的亮度和分布面积都随之下降.KL因子的最高浓度降低,碳烟较浓的分布区域减小,碳烟的氧化进程加快.
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| 关 键 词： | 内燃机 双色法 碳烟 柴油机 生物柴油 高速摄影 |
Visualization Investigation of Soot Characteristics of Engine Fuelled with Biodiesel Fuel |
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| HE Xu,MA Xiao,WU Fu-jia,WANG Jian-xin.Visualization Investigation of Soot Characteristics of Engine Fuelled with Biodiesel Fuel[J].Chinese Internal Combustion Engine Engineering,2009,30(2). |
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| Authors: | HE Xu MA Xiao WU Fu-jia WANG Jian-xin |
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| Affiliation: | State Key Laboratory of Automotive Safety and Energy;Tsinghua University;Beijing 100084;China |
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| Abstract: | In an optical engine,the visualization investigation of the combustion process of diesel/biodiesel blended fuels was implemented by high-speed photography and the flame images were acquired.Based on the two-color method,KL factor which indicated the integrated soot concentration in the cylinder was obtained from the flame image in order to analyze the effect of biodiesel on the combustion and soot formation in the cylinder.The results show that with the increase of biodiesel proportion in the blended fuel,t... |
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| Keywords: | IC engine two-color method soot diesel engine biodiesel high-speed photography |
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