... of combustion characteristics and performance parameters of biodiesel in DI diesel engine with variable compression ratio Mohamed F. Al-Dawody, S. K. Bhatti Department of Mechanical Engineering, ... performance characteristics of a single cylinder, four stroke, direct injection diesel engine with variable compression ratio. The engine operates on diesel fuel and 20% (mass basis) of biodiesel ... Performance parameters like brake power, and brake specific fuel consumption are discussed with variable compression ratio from 12 to 19, constant engine speed 1500 rpm and 20o BTDC injection...