Ivestigations on Exhaust Emissions of Insulated Diesel Engine Fuelled with Fish Oil Blended with Copper Nano Particles

Abstract

Fish oils are good substitutes for diesel, as they are abundant, cheap, Renewable, comparable calorific value and cetane number when compared with neat diesel operation. However, the disadvantages associated with Fish oils such as high viscosity and surface tension causes combustion, Mixture formation and fuel spray characteristics problems in diesel engines, which call for low heat rejection (LHR) engine, consisting of air gap insulated liner and Piston. Particulate matter (PM), oxides of nitrogen , carbon mono oxide  levels and un-burnt hydro carbons (UBHC) are the exhaust emissions from a diesel engine. They also cause environmental effects like small or insignificant generation of greenhouse gas (GHG) emissions and Global Warming. Hence control of these emissions is an immediate effect and an urgent step. The pollutants of  and  were determined at full load operation of the engine fueled with Fish oil blended with optimum quantity of diethyl ether (DEE) mixed with copper nano particles with varied injection timing with both versions of the engine such as conventional engine (CE) and LHR engine and compared with diesel operation on conventional engine. Particulate emissions were determined by AVL Smoke meter, while other emissions were measured by Netel Chromatograph multi-gas analyzer at full load operation. The pollutants of PM, CO and UBHC were drastically reduced with Fish oil with advanced injection timing with both versions of the engine. However,  emissions increased.