This study investigates the mechanisms of solubility, ignition, combustion and emission of ethanol diesel blend fuel for the prospect of using ethanol diesel blend in a Premixed Compression Ignition (PCI) engine. Ethanol diesel blend fuel of ethanol blend ratio 20vol% (E20) does not solubilize in atmospheric temperature, though will solubilize when heated to 323K. When applying ethanol diesel blend fuel to a PCI engine, combustion characteristics changes, which increases ignition delay and decreases the rate-of-pressure-rise. We speculated that the above combustion characteristics were shown as a result of the following three reasons: a leaner mixture caused by increase in ignition delay, fuel adhesion to cavity wall by ethanol and diesel fuels evaporation characteristics, and a decrease in combustion rate by adding ethanol. In order to determine each reason, experiments were carried out where combustion chamber geometry, Homogeneous Charge Compression Ignition (HCCI) and injection timing and injection quantity were varied.As a result, adding ethanol leads to low cetane number causes the increase in ignition delay. The reason for the drop in rate-of-pressure-rise was a synergetic effect of, leaner mixture and adhesion at long ignition delay, and the effect of fuel evaporation property was dominant during short ignition delay. In addition, even though the combustion control of E20 was effective in low load, it was not effective above middle load except the change in ignition delay. For emission characteristics, adding ethanol increased THC but decreases the amount of NOx.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Combustion and Emission Characteristics of a PCI Engine Fueled with Ethanol-Diesel Blends


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Powertrains, Fuels and Lubricants Meeting ; 2009



    Publication date :

    2009-06-15




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Combustion and emission characteristics of a PCI engine fueled with ethanol-diesel blends

    Masuda,Y. / Chen,Z. / Tokai Univ.,JP | Automotive engineering | 2009


    Combustion and Emission Characteristics of a PCI Engine Fueled with Ethanol-Diesel Blends

    Masuda, Y. / Chen, Z. / Jidaosha Gijutsukai | British Library Conference Proceedings | 2009


    Combustion and performance of a diesel engine fueled with ethanol-gasoil blends

    Miwa,K. / Wakabayashi,T. / Ohsawa,T. et al. | Automotive engineering | 1988


    Emissions From a 5.9 Liter Diesel Engine Fueled With Ethanol Diesel Blends

    Kenreck, Glenn / Wade, James / Thomas, John F. et al. | SAE Technical Papers | 2001


    Emissions from a 5,9 liter diesel engine fueled with ethanol diesel blends

    Kass,M.D. / Thomas,J.F. / Storey,J.M. et al. | Automotive engineering | 2001