Time-averaged combustion chamber surface temperatures and surface heat fluxes were measured at three locations (one in the antechamber and two in the main chamber) on the head of a single-cylinder, divided-chamber diesel engine. In general the surface temperature and heat flux were found to increase with increasing engine speed, fuel-air ratio and intake-air temperature, decreasing coolant temperature and advancing combustion timing. At motored conditions the highest heat flux was at the antechamber location. This was caused by the high swirl flows present in the antechamber. In contrast, at all other conditions the highest heat flux was measured at the location in the main chamber near the valves. This was attributed to the convective action of the high-temperature stream of combustion gases exiting the antechamber during the expansion stroke. Lastly, the local surface heat flux measurements were correlated in terms of the air and fuel consumption rates of the engine.


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    Title :

    Thermal Loading of the Cylinder Head of a Divided - Chamber Diesel Engine


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    1983 SAE International Off-Highway and Powerplant Congress and Exposition ; 1983



    Publication date :

    1983-09-12




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Thermal Loading of the Cylinder Head of a Divided-Chamber Diesel Engine

    Alkidas,A.C. / Cole,R.M. / GMR,Engine Res.Dept.,US | Automotive engineering | 1983



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