Performance and Emission Study of Watermelon Seed Oil Biodiesel with Ferrous Oxide Nano Particle on Diesel Engine

Most of researches warns the world that our sources for traditional fuels including petroleum would be depleted. Owing to the fact that these fuels are also typically not renewable, a lot of people are worried that a day would come when the demand for these fuels would be more than the supply, triggering a considerable world crisis. The use of alternative fuels considerably decreases harmful exhaust emissions as well as ozone-producing emissions. According to a commonly accepted scientific theory, burning fossil fuels is causing temperatures to rise in the earth’s atmosphere. Lot of people across the globe are of the belief that discovering sources of cleaner burning fuel is an essential step towards enhancing the quality of our environment. Many research works are finding the suitability of various alternative fuels like Jatropha oil, Sunflower oil, Waste cooking oil, Rubber seed oil, and Melon seed oil etc. for IC engines. Therefore, it was proposed to find the suitability of water melon seed oil as an alternative fuel in this work. Bio-diesel was prepared from watermelon seed oil by using transesterification processes. The performance, emission and combustion characteristics of the various bio-diesel and diesel blends (B10–B20 and B30) have been compared with those of the diesel. The experimental result indicates that owing to the lower heating value of the biodiesel, the brake specific fuel consumption increased and the brake thermal efficiency slightly decreased. However, biodiesel and its blends reduced carbon dioxide and hydrocarbon, while the oxides of nitrogen and carbon monoxide slightly increased. The combustion analysis proved that increasing bio-diesel blend ratio decreases the cylinder pressure and heat release rate when compared with base diesel.