Combustion, performance and emission characteristics of a di diesel engine fueled with ethanol-biodiesel blends

Lei Zhu, Chun Shun Cheung, W. G. Zhang, Zhen Huang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

283 Citations (Scopus)


In this study, Euro V diesel fuel, biodiesel, and ethanol-biodiesel blends (BE) were tested in a 4-cylinder direct-injection diesel engine to investigate the combustion, performance and emission characteristics of the engine under five engine loads at the maximum torque engine speed of 1800 rpm. The results indicate that when compared with biodiesel, the combustion characteristics of ethanol-biodiesel blends changed; the engine performance has improved slightly with 5% ethanol in biodiesel (BE5). In comparison with Euro V diesel fuel, the biodiesel and BE blends have higher brake thermal efficiency. On the whole, compared with Euro V diesel fuel, the BE blends could lead to reduction of both NOxand particulate emissions of the diesel engine. The effectiveness of NOxand particulate reductions increases with increasing ethanol in the blends. With high percentage of ethanol in the BE blends, the HC, CO emissions could increase. But the use of BE5 could reduce the HC and CO emissions as well.
Original languageEnglish
Pages (from-to)1743-1750
Number of pages8
Issue number5
Publication statusPublished - 1 May 2011


  • Biodiesel
  • Combustion
  • Emission
  • Ethanol
  • Euro V diesel fuel

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

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