ISSN: 2350-0328 International Journal of Advanced Research in Science, Engineering and Technology Vol. 4, Issue 1 , January 2017 Copyright to IJARSET www.ijarset.com 3209 Performance Analysis of Single Cylinder 4Stroke SI Engine Using Ethenol Blends With Gasoline Anand Modi, C.S. Koli, Amit Agrawal Research Scholar, SRCEM, Banmore, Gwalior (M.P.), Assistant Professor, SRCEM, Banmore, Gwalior (M.P.) Assistant Professor ,SRCEM ,Banmore ,Gwalior (M.P.) ABSTRACT: Today transport system is depends upon the fossil fuels specially liquid fuel which are depleting much faster rate than production. Consumption of the fuel is increasing day by day which is affecting the economy of our country. It fuel research is completely based on finding alternative fuel. In This paper the investigation main purpose is to evaluate the performance of the engine and decrease fuel consumption by using alternative fuel on combustion in four stroke SI engine. For this experimental investigation has been conducted on four stroke spark ignition engine, fuelled with various bland of gasoline-ethanol. Experiment has been conducted ethanol-gasoline bland such as E0 (pure gasoline), E5(combination of gasoline 95% by volume, ethanol 5% by volume), E10(combination of gasoline 90% by volume, ethanol 10% by volume), E15(combination of gasoline 85% by volume, ethanol 15% by volume), E20(combination of gasoline 80% by volume, ethanol 20% by volume), E25(combination of gasoline 75% by volume, ethanol 25% by volume), E30(combination of gasoline 70% by volume, ethanol 30% by volume), E35(combination of gasoline 65% by volume, ethanol 35% by volume) and E40(combination of gasoline 90% by volume, ethanol 5% by volume), is used in the study and its effects on break power, specific fuel consumption, break thermal efficiency. In this research comprehensive review of various operating parameters use of ethanol-gasoline blends has been discussed. Result obtain from the experimental tests has been discussed too. This work investigated ethanol-gasoline blending on the performance, emission of four stroke single cylinder SI (spark ignition) engine, air cooled engine having compression ratio 2.5 is used. The advantages of using ethanol as SI engine fuel include its greenness, renewability, higher availability and usability in near future, higher octane number, and biodegradability. Ethanol can be produced biologically from sugarcane, crop residues, cellulose, agricultural biomass, municipal waste etc. KEYWORDS: SI engine, Ethanol, alternate fuel, petrol blend, gasoline, Performance. I. INTRODUCTION World population increasing day by day, that increased demand of vehicles and industries, which consume fossil fuel. Fossil fuel reserves are limited in nature and they are going to be depleted in next some decayed, if these limited reserves used to fulfill the demand of industries and transportation. The cost of petroleum products have increased dramatically due to this increased demand of petroleum products. Increased demand and cost of petroleum products increases the attention of researchers in this field of alternative fuels in recent years. Ethanol is good alternative fuel for spark ignition engines and reduces the hazardous emission products from the engine as compared to the conventional fuel, which makes ethanol eco-friendly. Ethanol is an alcohol made through the fermentation of plant sugars from agricultural crops and biomass resources. The most common agricultural crop utilized for ethanol production is corn. Only a portion of the feedstock is needed for ethanol production and the remainder can be used for animal feed, corn oil, or other products. Ethanol is a clear, colorless chemical compound made from the sugars found in crops such as corn, sugar beets and sugar cane. Ethanol is knows as most attractive alternative fuel because of its properties like high octane number and flame speed among all the alcohols. It can be produces from renewal energy resources like agriculture feedstock. Ethanol is good alternative fuel for spark ignition engines and reduces the hazardous emission products from the engine as compared to the conventional fuel, which makes ethanol eco-friendly. Today the large amount of pollutants emitting out from the exhaust of the automotive vehicles run on fossil fuels are increasing and these pollutants are increasing as vehicles increasing day by day. In view of heavy consumption of