Title: Performance of a direct diesel engine using aviation fuels blended with biodiesel

Authors: Burak Gökalp; Hakan Serhad Soyhan; Halil İbrahim Sarac

Addresses: Department of Mechanical Engineering, Kocaeli University, 41040 Kocaeli, Turkey. ' Department of Mechanical Engineering, Kocaeli University, 41040 Kocaeli, Turkey. ' Department of Mechanical Engineering, Kocaeli University, 41040 Kocaeli, Turkey

Abstract: In this study, jet fuel (JF) and railroad fuel (D2) with SME blends (5%, 20%, 50%) were used in a four-cylinder, naturally aspirated, direct (DI) diesel engine. The engine was operated under full load and tested at various speeds to determine the engine's performance and exhaust emission characteristics. The experimental results show that as the SME ratio of the fuels increases, the break specific fuel consumption (BSFC) and exhaust temperature increase; the SME and its blends show a slight drop in engine performance. In this experiment, carbon monoxide (CO), carbon dioxide (CO2), nitrogen oxides (NOx) and smoke opacity values were measured for each fuel. The results of the emission tests revealed that the oxygen content of SME provided a significant reduction in CO and smoke opacity emissions. However, when the test engine was fuelled by SME and its blends, NOx emissions increased.

Keywords: alternative fuels; soybean oil methyl ester; diesel engines; jet fuel; aviation fuels; biodiesel; engine performance; exhaust emissions.

DOI: 10.1504/IJAP.2012.046560

International Journal of Alternative Propulsion, 2012 Vol.2 No.2, pp.165 - 180

Available online: 23 Apr 2012 *

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