Published Paper Details:

This ignition delay of a dual fuel diesel engine analyzed experimentally the effect of hydrogen, producer gas and combination of producer gas and hydrogen paper are presenting in this paper. The experiments were conducted on a 4-cylinder turbo-charged and intercooled 62.5 kW gen-set diesel engine running at constant speed of 1500 RPM. The experiments were conducted with different quantity of hydrogen and producer gas as a secondary fuel with diesel as pilot fuel at wide variety of load conditions. It was pragmatic that, when only 30% of hydrogen is used as secondary fuel ignition delay increased by 20CA at lower load condition. Furthermore, by 50% of hydrogen substitution maximum reduction in ignition delay was observed at 80% load condition. By 50% producer gas substitution the ignition delay is increased by 60CA at 80% load condition. In mixed fuel mode (PG+H2), it was found that of all the different mixture combinations verified, the ignition delay are more than pure diesel operation but better as compared to producer gas alone.However, mixture combination of PG:H2=(60:40) is found to be the most suitable one at which ignition delay is in good comparison to that of pure diesel operation.Further, it is experiential that the ignition delay of dual fuel engine depends not only on the type of gaseous fuels and their concentrations but also on charge temperature, pressure and oxygen concentration.