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Corresponding Author

El-Mozy, S.

Subject Area

Mechanical Power Engineering

Article Type

Original Study

Abstract

In this study, the effect of using Used Frying Oil Methyl Ester (UFOME) and diesel fuel mixture in direct injection diesel engine on the engine performance and emission is investigated. A reactor has been designed and manufactured for the production of methyl ester from used frying oil. Five blends at different volume proportions of diesel with the extracted methyl ester are used. The physical and chemical properties of methyl ester and its blends are measured. The experiments are carried out using a single cylinder direct injection diesel engine at the constant engine speed mode (1500 rpm) at five different engine loads. The results are compared with ordinary diesel fuel. It is found that blend B25 (25% of biodiesel in a mixture of biodiesel and Petrodiesel fuel) led to the highest brake specific fuel consumption by about (6.5-14%) compared with that when pure Petrodiesel is used. B30 gives the highest brake thermal efficiency. Carbon monoxide average emission values decreases by 32.232% for all UFOME blends with maximum average reduction of 44.4% for B10. Exhaust temperature and nitrogyn monoxide emissions are minimum at 50% engine load with average reduction of 13.38% and 10.13% ,respectively.

Keywords

alternative fuels; Biodiesel; Used Frying Oil; methyl ester; transesterification

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