DESIGN AND ANALYSIS OF PISTON IN HYDROGEN FUELED INTERNAL COMBUSTION ENGINE

I.C ENGINE

Hydrogen is a very efficient and clean fuel. Its combustion will produce no greenhouse gases, no ozone layer depleting chemicals, and little or no acid rain ingredients and pollution. In reciprocating piston engines or gas turbines of automobiles or aircraft. At the high reaction temperatures, which arise in such places, the oxygen and nitrogen in the air can combine to form nitrogen oxide. Energy stored in hydrogen would be available at any time and at any place on Earth. To obtain a piston design with vanadium steel as the piston material and a computational model that incorporates the thermal aspects of hydrogen fueled internal combustion engine. The presence of cooling is modeled by assigning convection coefficient on cooling jacket. Material information and isotropic material properties are taken from published report. The transient heat transfer analysis is done for the instant of combustion. The model is validated by comparing the computed maximum temperature at the piston surface with the published result. The computed temperature gradient at the crucial parts are plotted and discussed. It has been found that the critical component likely suffered from thermal fatigue was the exhaust port near the cylinder head and the materials used to construct the engine parts strongly influenced the temperature distribution in the engine. The model is capable to analyze heat transfer in the engine reasonably and efficiently. To design and analysis the piston with vanadium steel as the piston material for the hydrogen fueled internal combustion engine and compare it with the existing aluminium silicon alloy piston of hydrogen fueled internal combustion engine by PRO-E and Ansys software. The model would be useful to find out the information such as the temperature distribution, localized temperature, and critical part of the engine where thermal damage may occur. This analysis will be helpful for improving the piston materials for hydrogen fueled Internal Combustion engine.

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