Study performance and emission of diesel engine fueled with different diesel fuel temperatures

الملخص EN

An experimental study was carried out by using a portable apparatus that was 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 which running under different speeds.

An experiment was conducted during June, 2014 in practical route in the Department of Machines and Equipment, Collage of Agriculture, University of Baghdad.

Different inlet fuel temperatures included 40,45and 50°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 and Nitrogen 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 temperature at40°C indicated significant superiority up on fuel at temperatures 45, and 50°C in achieving lower fuel consumption, exhaust gas temperature EGT, Un-burnt Hydrocarbons UHC and Nitrogen Oxide NOX, for all speeds, while fuel temperature at 50°C achieving higher fuel consumption.

Increasing engine speeds from 1000, 1500 and to 2000 rpm caused an increasing in FC, exhaust gas temperature EGT, Un-burnt Hydrocarbons UHC and Nitrogen Oxide NOX.

Speed of 1000rpm achieved lower fuel consumption, and lower EGT, UHC and NOX, while engine speed at 2000rpm recorded significant superiority up on 1000and 1500rpm in achieving higher fuel consumption FC,EGT,UHC and NOX .