Investigation on Combustion Characteristics of Direct Injection Nature Inhale Diesel Engine Fuelled with Biodiesel

This paper analyzed chemical and physical properties of diesel fuel and biodiesel. The influence of B20, B50, B100 and 0^# diesel fuel mixture on diesel engine performance has been studied in a HF495Q3 engine. Test results show that the driving force of the engine is weaker with the adding of methanol, miximum power, miximum torque reduced about 9.8%, 5.6%; For better evaluated engine economic, in this paper used rate of fuel consumption of energy equal value to analyze engine economic. Test results show rate of equal energy fuel consumption change little; NO_x are increase, diesel smoke, HC and CO emissions are reduce.