Experimental and Chemometric Analysis on Attenuation of Emission with Optimized E‐Diesel Dual Fuel Blend

Abstract

AbstractThe notion of blending high reactivity fuel and low reactivity fuel inside the engine cylinder is one of the promising methods to produce ultra‐low oxides of nitrogen and smoke emissions. To visualize this, a single cylinder four stroke compression ignition engine of rated output power 4.4 kW has been used. In this work, the conventional engine is modified into dual fuel engine by injecting low reactivity fuel in the intake port at various premixed ratios (30%, 40%, 50%, 60% and 70%) and at the pressure of 2 bar. On the other hand, the high reactivity fuel is injected directly into the combustion chamber at a pressure of 250 bar. It was noted from the experimental work that fuel reactivity gradient controlled the combustion temperature and simultaneously reduced the formation of NOx and smoke emissions. However, the carbon monoxide and unburned hydrocarbon emissions increased with increase in premixed ratios. In this work, chemometric analysis was also carried out to find the optimized fuel blend which exhibits closer emission characteristics as that of conventional diesel fuel.