Performance and emission characteristics analysis of a CI engine fueled with Distilled pyrolytic waste plastic oil /ethanol/diesel blends

Abstract

Abstract To meet the current demand of energy for agriculture, industry and transportation, the prevailing liquid petro fuels are found insufficient due to their higher depletion rate and inflation in international market. Existing environmental pollution due to higher fossil fuel consumption certainly bring attention of many researchers to identify a better alternative fuel with respect to engine efficiency and exhaust emission. Waste plastic oil (WPO) derived by thermo-catalytic pyrolysis is found a promising alternative fuel due to its similar fuel properties to diesel. WPO contains bulky long chained naphtha, which can be eliminated by fractional distillation resulting production of Distilled Waste Plastic oil (DPO). DPO is mixed with different proportion of ethanol in order to improve the combustion for better performances and lesser emissions. The current study focused on the preparation of homogenous fuel mixtures (DPO/Ethanol/Diesel) to evaluate its engine efficiency and exhaust emissions as compared to pure diesel and confirm that it owns the potential as alternate fuel to CI engine. Test engine trials were performed for determining potential engine characteristics for instance thermal efficiency, specific fuel consumptions and exhaust temperature by using various fuel mixtures (80D10DPO10E, 70D15DPO15E, 60D20DPO20E, 50D25DPO25E) under different loading conditions of test engine. Major pollutants including unburned hydrocarbon, carbon monoxide, and nitrogen oxides were measured by standard emission analyzer. The study concluded that fuel mixture of 60D20DPO20E showed best engine performance and reduced emissions as compared to diesel.