Technical Paper
Comparative Analysis of Combustion Process of Dual Fuel Diesel Engine Fueled by Diesel/Hydrogen and Biodiesel/Hydrogen
2020-09-15
2020-01-2074
The paper presents the results of co-combustion of diesel with hydrogen and biodiesel with hydrogen in a compression-ignition internal combustion engine. The results show that for both cases of combustion diesel with hydrogen and biodiesel with hydrogen a noticeable change in combustion phases were achieved. The addition of hydrogen causes the combustion process more efficient what also has a positive effect for thermal efficiency of dual fuel engine and showed an increase in the value of this parameter of 5% compared to diesel or biodiesel. Comparison of combustion process between conventional engine fueled by diesel or biodiesel and diesel with hydrogen or biodiesel with hydrogen shows the differences in character of heat release rate. The premixed combustion phase after addition of hydrogen to base liquid fuel show an increase in maximum value. The combustion stability of the engine described by the COVIMEP index and the IMEP normal distribution was also assessed.