EXPERIMENTAL INVESTIGATION OF THE EFFECT OF PROPANE ADDITION ON DIESEL ENGINE PERFORMANCE

Öğr. Gör. Esenay ARSLAN / Erciyes Üniversitesi / Turkey

Abstract: In diesel engines, adding propane to the combustion air can be a solution to increase engine performance and reduce emissions from combustion. In the experimental study, the effect of propane addition to the combustion air on the engine performance has been investigated. The experiments were carried out on a four-stroke, 3-cylinder direct injection Lombardini LDW 1003 engine, at constant engine speed, different mixing ratios and different engine loads. In the diesel engine, propane was added to the combustion air in the amount of 250 g/h and 500 g/h. Engine torques are considered as unloaded, 9,81 Nm, 19,62 Nm, 29,43 Nm and 39,24 Nm (maximum load), respectively. It has been observed that as the propane addition increases with increasing load, the pressure inside the cylinder increases, there is a gradual decrease in the exhaust gas temperature, there is a decrease in diesel fuel consumption due to the propane addition, but especially the amount of NOx increases with increasing propane addition. Keywords: propane, combustion air, diesel engine, fuel consumption

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