PERFORMANCE EVALUATION OF A SINGLE CYLINDER FOUR STROKE PETROL ENGINE

A research study on evaluation of performance of a single cylinder four stroke otto engine was conducted in the Lab. of Farm Power and Machinery, Sindh Agriculture University, Tandojam. The actual size of engine parameters like bore, stroke, swept volume, clearance volume, compression ratio and r.p.m. were recorded and computed. Based on the actual size of the engine parameters the indicated horse power (ihp), brake horse power (bhp) and friction horse power (fhp) was determined and were found to be 1.54, 1.29 and 0.25, respectively. The mechanical efficiency and thermal efficiency was also calculated and were found to be 83% and 20.5%, respectively. The fuel consumption per hour was found to be 0.8 liter/hour while the fuel consumption per distance traveled was found to be 60 km/liter.