Spray Characteristics Study of DMF Using Phase Doppler Particle Analyzer
Spray Characteristics Study of DMF Using Phase Doppler Particle Analyzer
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DOI：
10.4271/2010-01-1505
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发表时间：
2010-05
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影响因子：
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通讯作者：
G. Tian;Haiying Li;Hongming Xu;Yanfei Li;Satish Mohan Raj
中科院分区：
文献类型：
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作者：
G. Tian;Haiying Li;Hongming Xu;Yanfei Li;Satish Mohan Raj
由于新的生产技术的发展，2，5-二甲基呋喃（DMF）目前被认为是一种潜在的汽油替代燃料。本文采用阴影法和相位多普勒粒子分析仪（PDPA）对高压直喷式汽油机中DMF及其汽油混合物的喷雾特性进行了研究，包括各种混合物的喷雾贯穿距离、液滴速度和粒径分布。同时，测量商业汽油和乙醇以比较DMF的特性。共测量了沿着喷雾的52个点，以便实验结果可用于随后的数值模拟。总之，实验结果表明，与乙醇相比，DMF及其共混物具有与汽油相似的喷雾性能。DMF的液滴尺寸一般比乙醇小，且随着喷射压力的增加减小得更快。DMF喷雾液滴的平均速度与汽油相近，高于乙醇。最终，DMF的喷雾特性比其对应物乙醇更适合汽油发动机技术。© 2010 SAE International.
2,5-dimethylfuran (DMF) is currently regarded as a potential alternative fuel to gasoline due to the development of new production technology. In this paper, the spray characteristics of DMF and its blends with gasoline were studied from a high pressure direct injection gasoline injector using the shadowgraph and Phase Doppler Particle Analyzer (PDPA) techniques, This includes the spray penetration, droplet velocity and size distribution of the various mixtures. In parallel commercial gasoline and ethanol were measured in order to compare the characteristics of DMF. A total of 52 points were measured along the spray so that the experimental results could be used for subsequent numerical modeling. In summary, the experimental results showed that DMF and its blends have similar spray properties to gasoline, compared to ethanol. The droplet size of DMF is generally smaller than ethanol and decreases faster with the increase of injection pressure. The mean velocity of DMF spray droplets is similar to gasoline and higher than ethanol. Ultimately, the spray characteristics of DMF are better suited to the gasoline engine technology than its counterpart, ethanol. © 2010 SAE International.