| 基于激光诊断的生物柴油碳烟生成特性研究 |
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| 引用本文： | 何旭,马骁,吴复甲,王建昕.基于激光诊断的生物柴油碳烟生成特性研究[J].内燃机工程,2009,30(1). |
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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： | 制作了1个以液体为燃料可以产生层流扩散火焰的燃烧器,应用双色激光诱导炽光法(LII)技术来测量火焰中的绝对碳烟体积分数.基于在2个波长上获取的火焰中某1点的LII信号,获得被激光加热的碳烟粒子温度,同时得到此点的碳烟浓度,通过映射得到火焰的二维碳烟浓度分布.采用激光诱导荧光法可获得碳烟前驱物多环芳香烃在火焰中的二维分布,将激光诱导荧光和激光诱导炽光相结合,在柴油和生物柴油混合燃料的层流扩散火焰上进行测试.研究结果表明,随着生物柴油掺混比例的增加,碳烟和多环芳香烃的最大浓度都随之降低,浓区分布面积也进一步缩小.
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| 关 键 词： | 内燃机 激光诱导荧光 激光诱导炽光 碳烟 生物柴油 柴油机 |
Investigation on the Soot Formation of Biodiesel Fuel by Laser Diagnostics |
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| HE Xu,MA Xiao,WU Fuo-jia,WANG Jian-xin.Investigation on the Soot Formation of Biodiesel Fuel by Laser Diagnostics[J].Chinese Internal Combustion Engine Engineering,2009,30(1). |
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| Authors: | HE Xu MA Xiao WU Fuo-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: | A burner fueled with liquid fuel was set up,which could produce a laminar diffusion flame.A two-color laser induced incandescence(2C-LII) technique was used for measuring absolute soot volume fraction in the flame.Based on LII signal of the same point in the flame recorded at two wavelengths,the temperature of the laser-heated soot particles was first derived and then the soot concentration of the point could be acquired.The 2D soot concentration distribution in the flame was obtained by mapping.The 2D conc... |
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| Keywords: | IC engine laser induced fluorescence laser induced incandescence soot biodiesel diesel engine |
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