PERFORMANCE EVALUATION OF METHANOL BLENDED FUELS IN S.I. ENGINES

PERFORMANCE EVALUATION OF METHANOL BLENDED FUELS IN S.I. ENGINES

ABSTRACT:

The aim of this paper presentation is to evaluate the performance of four-cylinder four-stroke water-cooled spark ignition engine with hydraulic dynamometer loading. The fuels selected are blends of methanol, ethanol and gasoline. This paper presentation also focuses on blends of mixture of methanol, ethanol with gasoline. And calculation of percentage of CO and HC in the emissions. Also includes the modifications required in the existing spark ignition engine to suit above said fuels and focusing the full life of service of existing engine with blended fuels.

INTRODUCTION:

Methanol is a colourless, odourless and nearly tasteless alcohol, with the simplest chemical structure of all the alcohols: CH3OH. It is also one of the most commonly used chemicals in the world today, with total world production estimated to be 32,000 billion liters per year. Much of this production is in the USA and Europe, where methanol is used as the feedstock for the production of methyl tertiary butyl ether (MTBE), a widely used additive to boost octane levels in petrol (acting as an “oxygenate”). In 1997 27% of the world’s methanol production was used to make MTBE38. However, recent problems with contamination of groundwater by MTBE in the USA have led to reductions in its use and expanded production of ethanol in that country as an alternative oxygenate for petrol.

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