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汽车安全与节能学报

汽车安全与节能学报 ›› 2010, Vol. 1 ›› Issue (2): 132-140.DOI: 10.3969/j.issn.1674-8484.2010.02.007

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2,5-二甲基呋喃的喷雾特性及发动机适应性 2,5-二甲基呋喃的喷雾特性及发动机适应性

田国弘，徐宏明，Ritchie DANIEL，李海鹰，李雁飞   

  1. 机械工程系，伯明翰大学，伯明翰，B15 2TT，英国
  • 收稿日期:2010-05-20 出版日期:2010-06-15 发布日期:2010-06-15
  • 通讯作者: 徐宏明，教授。E-mail：h.m.xu@bham.ac.uk。
  • 作者简介:田国弘（1979—），男（汉），重庆，研究员。E-mail：g.tian@bham.ac.uk。
  • 基金资助:

     英国工程和自然科学研究委员会（EPSRC）资助（EP/F061692/1）

Spray characteristics and engine adaptability of 2,5-dimethylfuran  

 TIAN Guohong, XU Hongming, Ritchie DANIEL, LI Haiying, LI Yanfei   

  1. Mechanical Engineering Department, University of Birmingham, Birmingham, B15 2TT, UK
  • Received:2010-05-20 Online:2010-06-15 Published:2010-06-15

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摘要：  2,5-二甲基呋喃（DMF）可作为一种可再生的汽油类替代燃料。为研究DMF在车用发动机中的适用性，该文采用相位Doppler粒子分析仪(PDPA)测试了DMF的微观喷雾特性，并在一台单缸直喷汽油机上进行了性能及排放测试。作为对比，同时对商用无铅汽油以及另一种汽油类替代燃料乙醇进行了相应测试。实验结果表明：DMF的喷雾特性与汽油相仿，而乙醇具有较低的喷雾油粒速度和较高的索特平均粒径；当使用DMF作为点燃式发动机燃料时，可以在高负荷采用更为提前的点火时间以获得更好的热效率，但总的来讲其等效油耗与汽油差别不大；另外，DMF的NOx排放较高，其他气态排放物与汽油接近。

关键词: 车用发动机, 喷雾特性, 燃油消耗率, 气态排放, 2,5-二甲基呋喃, 相位Doppler粒子分析仪（PDPA）

Abstract:  2,5-dimethylfuran (DMF) has been regarded as a potential sustainable alternative fuel for gasoline. The microscopic spray characteristics of DMF were studied using a Phase Doppler Particle Analyzer (PDPA). The engine performance and emissions were tested on a single cylinder direct injection spark ignition engine. By those tests, the adaptability of DMF as an alternative internal combustion engine fuel was investigated. As comparison, those of commercial gasoline and another alternative fuel, ethanol, were studied too. The results show that DMF is similar to gasoline in terms of spray characteristics, however ethanol has lower droplets velocity and higher droplet Sauter mean diameter. For engine performance, more advanced spark timing can be applied at high load for DMF to achieve better efficiency, but generally, DMF has similar fuel consumption to gasoline. In terms of emissions, DMF has higher NOx emission, and similar HC and CO emissions to gasoline.

Key words: vehicle engine, spray characteristics, fuel consumption, goseous emissions, 2,5-dimethylfuran (DMF), phase Doppler particle analyzer (PDPA)

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