Author(s)

C. Arapatsakos, A. Karkanis & P. Sparis

Abstract

Tests on a small four-stroke engine using gasoline-bioethanol mixtures as fuel C. ~ra~atsakos' , A. arka an is', P. sparis' I Democritus University of Thrace-Greece Mechanical Engineering Laboratory Abstract The use of gasoline - bioethanol mixtures is examined in an internal combustion small displacement engine that is used for the operation of a small alternative electrical generator. Different mixtures of gasoline-ethanol (lo%, 20%, 30% and 40%) were used as fuel. The engine functioned at idle and under full load (IKW). During the tests, the gas emissions (CO, HC) and the fuel consumption were constantly measured for every mixture separately. Test showed a considerable decrease of gas emissions roughly proportional to the percentage of ethanol in the fuel mixture. No adverse effects on the engine were noted. 1 Introduction Atmospheric pollution is one of the major environmental problems of public concern. The pollutants that exist in the air mainly harm humans causing respiratory diseases

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