Effect of hydrogen induction on co mbustion, performance and emission behaviour of compression ignition engine using used transformer oil as a main fuel

Abstract

Our present fuel resources are not going to be around forever and with the ever increasing consumption their extinction is nearly unavoidable. Also our fuel resources which are mostly made up of fossil fuels are not renewable in nature. In the present study hydrogen at a constant flow rate of 4lpm was inducted in the suction, at some distance away from the intake manifold, along with air. Two different fuels on volume basis were tested as main fuels in a single cylinder, 4-stroke, air cooled, direct injection diesel engine developing a power of 4.4 kW, at a rated speed of 1500 rpm. One fuel was the sole used transformer oil (UTO/UTO100) and the other one was the UTO at 40% blended with 60% diesel fuel (UTO40). The combustion, performance, and emission parameters of the engine were obtained in the investigation and compared with the baseline diesel fuel. The results indicated increase in brake thermal efficiency for both the main fuels when hydrogen is inducted and also high reduction in smoke levels.