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CHEN Hao, QI Dong-hui, BIAN Yao-zhang. Influence of spray performance on combustion and emission characteristics of biodiesel[J]. Journal of Traffic and Transportation Engineering, 2009, 9(1): 40-43. doi: 10.19818/j.cnki.1671-1637.2009.01.009
Citation: CHEN Hao, QI Dong-hui, BIAN Yao-zhang. Influence of spray performance on combustion and emission characteristics of biodiesel[J]. Journal of Traffic and Transportation Engineering, 2009, 9(1): 40-43. doi: 10.19818/j.cnki.1671-1637.2009.01.009
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Influence of spray performance on combustion and emission characteristics of biodiesel

doi: 10.19818/j.cnki.1671-1637.2009.01.009

  • Key Laboratory of Development and Application for New Transportation Energy in Shaanxi Province, Chang'an University, Xi'an 710064, Shaanxi, China

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  • Author Bio:

    CHEN Hao(1981-), male, lecturer, PhD, +86-29-87767662, huaze0550@yahoo.com.cn

  • Received Date: 2008-08-18
  • Publish Date: 2009-02-25
    Abstract
  • Spraying comparison experiments were conducted on a press pump test-bed, and combustion and emission performance comparison experiments between biodiesel and diesel were done on a single cylinder direct-injected diesel engine. The diameter size distribution of liquid drop and the characteristic parameters of fuels were analyzed, the combustion and emission difference between diesel and biodiesel and the reasons were studied. Study result indicates that, compared with diesel, the spray angle of biodiesel is smaller, the total amount of drop is less, the proportion of small diameter drop is lower, and the maximal diameter is larger. When rotation speed is 1 500 r·min-1 and average effective pressure is 0.531 MPa, the maximal combustion pressure, and the pressure increase ratio and heat release ratio of biodiesel decrease by 1.91%, 30.10% and 29.32% respectively, continual combustion period of biodiesel is longer. When rotation speed is 1 500 r·min-1, the emissions of HC, CO and smoke for burning biodiesel decease by 17.17%, 26.73% and 37.85% respectively, and the emission of NOX increases by 21.93%.

     

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