Performance Analysis of Variable Compression Ratio Engine using

Abstract: An experimental investigation is carried out to study the effect of compression ratio on variable compression ratio engine using diesel oil. In this paper the performance characteristics are studied at various compression ratios and loads. This would give a complete idea how an engine behaves both at various loads and compression ratios. After analyzing an attempt has been made to suggest the best optimal compression ratio at which an engine could work with higher thermal efficiency and lower specific fuel consumption. This detailed study of various engine parameters useful for knowing the best compression ratio of an engine which is found as 17 at which the brake power is 2.662KW at 3/4th load. The Specific fuel consumption is found to be minimum at compression ratio 18.The optimum performance of the engine at a load and it certainly provide a frame work for different engines manufacturers to acknowledge the best compression ratio at which the engine has to be designed