Combusiton of pine pyrolysis oil droplets was studied at different pressures up to a maximum of 60 bar in a single-droplet combustion chamber. Oil droplets, with diameters between 400 \gmm and 120 \gmm were suspended to a thermocouple of to a quartz fiber. Their behavior was followed by means of high-speed digital imaging based on a shadowgraph scheme. About two thousands of frames were collected during every test with acquisition speed between 400 and 4000 frames/s.Droplets were easy to ignite at normal as well as at high pressure. Increasing the pressure the intensity of swelling phenomena, undergone by droplets, decreased and completely disappeared at pressures higher than 20 bar. However, bubbling and foaming were always observed. Liquid-phase pyrolysis and the formation of cenospheres as combustion residual were observed under all the pressure conditions.


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    Title :

    High pressure combustion of wood pyrolysis oil


    Additional title:

    Sae Technical Papers


    Contributors:
    D'Alessio, J. (author) / Lazzaro, M. (author) / Massoli, P. (author) / Calabria, R. (author) / Moccia, V. (author)

    Conference:

    2001 Internal Combustion Engines ; 2001



    Publication date :

    2001-09-23




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English