Production and Utilization of Useful Fuel from Waste Cooking Oil and Waste Lubrication Oil: Performance and Emission-Quality in a Naturally Aspirated Diesel Engine

Abstract

Increase in the demand for the alternative fuel for diesel engine as led to quest for feasible fuel with competitive cost and environmental friendly compared to petrolium fuel. This article deals on waste energy recovery. The aim of this experimental work is to find an attractive alternative fuel for the diesel engine by harnessing fuel from waste disposed oils. Waste Cooking Oil (WCO) and Waste Lubrication Oil (WLO) energy sources are used for fuel production. Collected WCO stored in a container, mixed and cleansed by removing solidified fats and other food leftovers before the transesterification. The acid followed by base catalyst transesterification processes carried out for biodiesel production. The WLO oil cannot be used directly in diesel engine and hence it is processed to be used like DLF using pyrolitic vacuum distillation method. The characteristics test such as flash point, fire point, density; viscosity and calorific value of the produced biodiesel, DLF, B10, B20, B30 and B40 were determined & compared with standards. Performance and Emission characteristics conducted in a single cylinder, free aspirated, water- cooled computerized diesel engine setup and results discussed. Results outcome shows that B30 exhibits the similar performance as pure diesel. The results show an improvement in brake specific fuel consumption, thermal efficiency. The unburned hydrocarbons, carbon monoxide emissions less but increase in the NOx.