STUDY PERFORMANCE AND EMMISSION OF DIESELENGINE FUELED WITH DIFFERENT DIESEL FUEL TEMPERATURES

Abstract

An experimental study was carried out by using a portable apparatus thatwas locally collected, used to control the temperature of diesel fuel.It was connected and tested with the line of fuel supply system for agricultural tractor (Anter-71) diesel engine whichrunning under different speeds. An experiment was conducted during June, 2014 in practical route in theDepartment ofMachines and Equipment,Collage of Agriculture, University of Baghdad.Different inlet fuel temperatures included 40,45and50°C and speeds included 1000, 1500 and 2000rpm were studied in this research. The engine performance parameters which included,Fuel consumption FC, exhaust gas temperature EGT, Un-burnt Hydrocarbons UHC andNitrogen Oxide NOX, were measured under different speeds.Treatment data were analyzed by using SAS 2000 statistical program factorial design under Complete Randomized Design (CRD),with three replications and LSD; 5%were used.Results were showed that,fuel temperatureat40°Cindicated significant superiority up on fuel at temperatures 45, and 50°C inachieving lower fuelconsumption, exhaust gas temperature EGT, Un-burnt Hydrocarbons UHC andNitrogen Oxide NOX, for all speeds, while fuel temperatureat 50°Cachieving higher fuel consumption.Increasing engine speeds from 1000, 1500and to 2000 rpm caused an increasing in FC, exhaust gas temperature EGT, Un-burnt Hydrocarbons UHC andNitrogen Oxide NOX. Speed of1000rpm achieved lower fuel consumption,andlowerEGT,UHCand NOX,while engine speed at 2000rpm recordedsignificantsuperiority up on 1000and 1500rpm in achieving higher fuel consumptionFC,EGT,UHC andNOX.