Experimental Study For The Effect Of Diesel Fuel Quality Product in Iraq On Emission And Engine Performance

Abstract

A series of experiments was conducted to evaluate the impact of diesel fuel types that are produced in Iraq and compared with other special types of Ethanol Blended Diesel Fuel. The testing was carried out on a four-stroke single-cylinder direct injection diesel engine under different speeds and loads in the internal combustion engine laboratory, department of machines and equipment, Baghdad Technology Institute. Five types of diesel engine Fuel included Daura, Basra, Beji local Fuel, and two biodiesel Fuels 10%Ethanol Blended Diesel Fuel, and 8%Ethanol Blended Diesel fuel, four levels of engine speeds included 1100, 1600, 2100, and 2600 rpm, and five levels of torques included 2, 4, 6, 8 and 10 Nm were used in this study. Mathematical relationships and computerized programs (ECA 100, VDAS) were used to calculate the performance parameters of the engine which included brake specific fuel consumption, the exhaust emissions included nitrogen oxide, and carbon monoxide and carbon dioxide were measured by using the exhaust gas analyzer type FLUX-2000-4. The study shows that the Beji fuel recorded the highest level of bsfc with variable torque and 8% blended is the highest value with variable speed followed by the other types of fuel. Basra has the greatest value of η_Ith at variable speed, 8% blended has a higher value of η_Ith with variable torque. Daura fuel type recorded the lowest values in emissions than the other types with variable speeds and torque reach to 29.89%, while recorded increasing on indicated thermal efficiency 11.29%.