Experimental Investigation of Frictional Power Apportionment of Moving Parts in a Hydrogen fuelled Multi-cylinder Spark Ignition Engine

This study deals with the frictional power of each moving part in hydrogen fueled multi-cylinder spark ignition engine. The parts such as piston, rings, bearings, cam, and roller follower are considered for this study. engine was run at a constant speed 1500 rpm different loads. indicated is calculated using in-cylinder pressure data, brake measured respect to component calcu-lated models available literature. constants calibrated input experimental data. components increases an increase engine’s load. friction between piston ring liner highest among other components’ due mainly gas (in rings) acting on being highest. percentages output 15.1 kW 30.8% (friction rings pressure), 18.4% (piston skirt), 13.4 % (bearings), 8.5 (cam), 6.9 tension) applied load kW. results could be useful find avenues reducing enhance fuel economy endurance life engines.