AN EXPERIMENTAL STUDY ON PERFORMANCE AND EMISSION CHARACTERISTIC OF A SINGLE CYLINDER FOUR STROKE OVER HEAD VALVE (OHV) SPARK IGNITION ENGINE

This paper focuses on the experimental study on performance and emission characteristic of an existing single cylinder four stroke overhead valve (OHV) spark ignition engine. The main advantage of this project is to reduce weight of the overhead valve engine components in two ways, one is selection of material and, other is to optimize the design layout within the design region, by using topology optimization. At first, the performance and emission characteristics of the single cylinder four stroke overhead valve engines with the help of eddy current dynamo meter and standard silencer was studied. Based on the experimental results, brake power, specific fuel consumption, mechanical efficiency, brake thermal efficiency and indicated thermal efficiency are calculated by using governing equations, and the valves are plotted graphically. Another perspective view of the project is to study and record the emission characteristic such as carbon monoxide (CO), unburned hydrocarbons (HC) and carbon dioxide (CO2).