SOME HEAT-TRANSFER STUDIES ON A DIESEL-ENGINE PISTON

Heat Transfer studies in the cylinder-piston assembly of an internal combustion engine have gained importance because of the effect on engine performance of these components. With the present day trend for producing engine parts of an interchangeable nature it is important to study the feasibility of converting a water-cooled diesel engine into an air-cooled one. With this object in mind this article presents some results of heat transfer studies carried out on a 13-cm diam. cast-iron diesel engine piston. Results show the nature of temperature distribution, heat flow rates to the cooling media and the resulting thermal stresses in the piston body of water-cooled and air-cooled engines at different loads.