A detailed analysis has been made on the Cetane Scale presently used to rate the autoignition quality of fuels. The effect of the increase in temperature and pressure, as a result of increasing the compression ratio, on the ignition delay has been theoretically and experimentally analyzed. It has been found that the ignition delay is more sensitive to air temperature than air pressure. The sensitivity increases with the drop in the cetane number of the fuel. Many techniques have been examined to modify the present cetane scale. A modified scale has been developed by raising the inlet temperature from 150°F to 350°F without changing the rest of the rating technique. The modified scale is very effective in extending the scale to zero cetane number and is able to rate the low ignition quality fuels.


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    Title :

    A Modified Cetane Scale for Low Ignition Quality Fuels


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Passenger Car Meeting & Exposition ; 1978



    Publication date :

    1978-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English


    Keywords :


    A modified cetane scale for low ignition quality fuels

    Henein, N.A. / Elias, N.Y. | Tema Archive | 1978


    A Modified Cetane Scale for Low Ignition Quality Fuels

    Henein,N.A. / Elias,N.Y. / Wayne State Univ.,US et al. | Automotive engineering | 1978




    Ignition Delay Characteristics of Alternative Diesel Fuels: Implications on Cetane Number

    Siebers,D.L. / Sandia National Laboratories,Livermore,US | Automotive engineering | 1985