PERFORMANCE cycle then after water is sprayed into

PERFORMANCE OF ENGINE ON BASIS OF    MULTI FUEL SYSTEM                 Harish Apuri,Student,mechanical engineering, cvsr college(AGI),Hyderabad. Abstract:-In the present world, many difficult challenges are being faced to improve the engine thermal efficiency.So multi-fuel system is introduced into the engine to improve the efficiency. In this paper, the multi-fuel engine is explained in a theoretical way. in this engine, It works under three fuels are petrol, water, ethanol. The function of the multi-fuel engine is to use the fuels to produce a number of stroke in the cylinder to increase the engine efficiency.The engine sucks the petrol mixture in the first stage to produce four strokes, In the second stage water is sprayed into engine helps to produce two strokes and also to cool down the engine,In third stage the ethanol mixture is sprayed into cylinder to produce four more strokes and at last stage of cycle water is sprayed in the cylinder to produce strokes and as coolant. So with the increase of a number of strokes, the engine thermal efficiency also increases. The cycle of injection fuels is continuously performed to maintain the amount of efficiency of the engine. automobiles industry may be revolutionized for multi-fuel engine design to increase the efficiency of the engine.Keywords:-engine, combustion, heat, efficiency                                                                  INTRODUCTIONOne of the most difficult challenges is being faced by the world to improve the engine thermal efficiency. The multi-fuel engine is an internal combustion engine with advanced features for more power generation. In this engine, it works by the usage of one or more number of fuels in the engine. So, by the use of multi-fuel system the number strokes increase the efficiency of the engine. In the multi-fuel system, petrol mixture is injected in the first stage of the cycle then after water is sprayed into engine .so, the cools down the engine and it helps in providing additional strokes(two strokes). where at the third stage of cycle ethanol is used as fuel in the Seventh stroke. so when we inject ethanol into the cylinder, the crank moves down then the ethanol injection valve closes the crank move upwards in the eighth stroke. In the ninth stroke, the compressed ethanol mixture is ignited with a spark plug, then due to combustion, the crank moves downward. In the tenth stroke, the crank moves upwards when the burnt gases released through the exhaust value. After completion third stage of the cycle, water is injected into the cylinder to increase the number of strokes(two strokes)and efficiency. So, by this engine completes 12 strokes in the cylinder in a cycle. In an Multi-fuel engine, the injection of fuels will be sequentially sprayed into the cylinder. It helps in reduction of fuel consumption and gives more efficiency. ETHANOL:-Ethanol has been used as automobile fuel for many years in various countries of the world. Brazil is probably the leading user, where in the early 1990s.About 4 millions vehicles operated on fuels that were 93% ethanol. For a number of years gasohol(90%gasoline + 10%alcohol) has been available at service stations in united states. There are two types of ethanol mixtures are E85(85% ethanol) and E10(gasohol).Ethanol had less hydrocarbon emission than gasoline but more than gasoline.E85:-It is a. Alcohol with a mixture of 15% gasoline remaining is alcohol.Uses:-It is added to abolish some  issues of  alcohol.E10:-It refuses the use of gasoline without a change in the design of the engine.ETHANOL PREPARATION:–>It is prepared by ethylene or from small pieces of grains and sugar.->Much of the ethanol is prepared by corn, sugar beets, sugar cane and many more.Advantages of ethanol:-It is an alternative fuel for automobiles.It gives high efficiency.E10 helps in reduction of the use of gasoline without any change in the design of the engine.PHYSICAL AND CHEMICAL PROPERTIES:-                                         Physical properties                                                                                        Chemical Properties The boiling point of ethanol is 173.3 °F (78.5 °C).                                                the chemical formula is C2H5OHThe melting point of ethanol is -173.4 °F (-114.1 °C).Ethanol has an hydroxylic group attached to a saturated carbon atom.Freezing PointWine (10% alcohol  by volume): 25 °F (-4 °C)Vodka (40% alcohol by volume): -10 °F (-23 °C).PH valuePure ethanol is neutral (pH~7)SolubilityEthanol is highly soluble in water and organic solvents.DENSITYThe density of ethanol at 68 °F (20 °C) is 0.789 g/mL.ethanol is a clear, colourlesss, volatile liquid with a characteristic odour.WORKING OF EIGHTH STROKE ENGINE:-In the Multi-fuel engine, it consists of four processes to complete one cycle, which I had specified in the introduction of Multi-fuel engine.The Multi fuel engine consists of two parts in a cycle.                                ->In the first part, the injection of petrol followed by water into the engine.                                 ->In Second part, the injection of ethanol followed by water into the engine. CYCLE OF FUEL INJECTION3.1:-SUCTION STROKE (FIRST STROKE)During the suction stroke, the petroleum air-fuel mixture is sprayed into the cylinder through the inlet valve and exhaust valve kept closed.so, the piston moves from TDC to BDC in the cylinder.3.2:-COMPRESSION STROKE( SECOND STROKE)During the second stroke, the piston moves from BDC to TDC the Both the inlet valve and exhaust valves are closed and the air-fuel mixture is compressed and develops high pressure and temperature in the cylinder.3.3:-FIRST POWER STROKE (THIRD STROKE ) (COMPRESSION STROKE)During the third stroke, as we know that in a second stroke the air-fuel mixtures get compressed and develops high pressure and temperature. As the power is obtained from the engine by igniting the compressed air-fuel mixture using a spark plug. Both valves remain closed.The piston moves from TDC to BDC of the cylinder.By this combustion stroke is completed.3.4:-FOURTH STROKE (FIRST EXHAUSTION STROKE)During this exhaustion stroke, the combustion of gases in the cylinder will be removed through exhaust valve.  So when the exhaust valve opens, the burnt gases are removed through the exhaust valves from the engine cylinder. So that The piston moves from BDC to TDC.3.5:- FIFTH STROKE (SECOND POWER STROKE)During the fifth stroke, the exhaust valves remain close and the water Inlet valves open. Freshwater from the water Inlet valve enters into the cylinder through the water Induction system. The piston moves from TDC to BDC in the cylinder.3.6:- SIXTH STROKE (SECOND EXHAUST STROKE) During the sixth stroke, the water exhaustion valve remains open at top of the cylinder The water sucked into the cylinder during the fifth stroke is converted to steam due to the presence of high temperature and pressure, so the mixture of gases is removed from cylinder to the surroundings through the water exhaust valve. When The piston moves from BDC to TDC in the cylinder so by this six strokes will be completed.Suction: -In this stroke, petrol mixture is injected into cylinder and the piston moves down wordsCompression stroke:-the inlet valve close and the piston moves up words.Ignition stroke:-the compressed fuel mixture is ignited by spark plug so the piston moves down words.Exhaust stroke:-here the burnt gases escape from the exhaust valve when the piston moves upwards.Air suction:-the water injected into the cylinder, the inlet valves closes due to high temperature and pressure water converted into steam. so due to the force exerted by the steam, the piston moves down words.  Air exhaust:-the steam leaves through the exhaust valve then piston moves upwards.3.7:- SEVENTH STROKE (SECOND SUCTION STROKE)During the seventh stroke, the exhaust valves remain closed and the ethanol Inlet valve open. Ethanol enters from the inlet valve to the cylinders through ethanol Induction system. The piston moves from TDC to BDC.3.8:- EIGHTH STROKE (SECOND COMPRESSION STROKE) During the eight-stroke, the piston moves from BDC to TDC the  Both the inlet valve and exhaust valves are closed and the air-fuel mixture is compressed and develops high pressure and temperature in the cylinder.3.9:-THIRD POWER STROKE (NINTH STROKE) (COMPRESSION STROKE)During the third power stroke, as we know that in a eighth stroke the air-fuel mixtures get compressed and develop high pressure and temperature.As the power is obtained from the engine by igniting the compressed air-fuel mixture using a spark plug. Both valves remain closed. The piston moves from TDC to BDC of the cylinder.By this combustion stroke is completed.3.10:-TENTH STROKE(THIRD EXHAUSTION STROKE)During this third exhaustion stroke, the combustion of gases in the cylinder will be removed through exhaust valves.So when the exhaust valve opens, the burnt gases are removed through the exhaust valves from the engine cylinder.So that The piston moves from BDC to TDC.3.11:- ELEVENTH STROKE ( FOURTH POWER STROKE)During the eleventh stroke, the exhaust valves remain close and the water Inlet valves open. Freshwater from the water Inlet valves enters the cylinders through the water Induction system. The piston moves from TDC to BDC in the cylinder.3.12:- TWELFTH STROKE (FOUR EXHAUST STROKE) During the twelfth stroke, the water exhaustion valve remains open at top of the cylinder. The water particles are sprayed into the cylinder during the eleventh stroke is converted to steam due to the presence of high temperature and pressure, so the mixture of gases is removed from cylinder to the surroundings through the exhaust valve.when The piston moves from BDC to TDC in the cylinder so by this twelfth stroke will be completed.Suction: -In this stroke ethanol mixture is injected into the cylinder and the piston moves down words.Compression stroke:-the inlet valve close and the piston moves up words.Ignition stroke:-the compressed fuel mixture is ignited by spark plug so the piston moves down words.Exhaust stroke:-here the burnt gases escape from the exhaust valve when the piston moves upwards.Air suction:-the water injected into the cylinder, the inlet valves closes due to high temperature and pressure water converted into steam.so due to the force exerted by the steam the piston moves down words.  Air exhaust:-the steam leaves through the exhaust valve then piston moves upwards.Advantages:-It helps in engine thermal efficiencyIt helps in reducing fuel consumption It reduces noise pollutionWe can eliminate the radiator.Disadvantages:-The high manufacturing cost of eight-stroke engineEngine size increases with increase in additional strokes.Modification of engine is nee                                                              CONCLUSIONthe multi-fuel engine modification promise assures the changes in the reduction of fuel consumption and increase in efficiency in the internal combustion engine.this helps the automobile industry to make a great impact on the environment and world’s economy.                                                                                                                  ACKNOWLEDGEMENTThe author would like to thank Department of Mechanical Engineering CVSR College of Engineering for their support and encouragement to write a technical paper.The author also extends my sincere thanks to my brother, family and all other members of the faculty of the mechanical engineering department and our friends for their co-operation and encouragement.                                                                       REFERENCES1.Asawari Barde – AN OVERVIEW OF SIX STROKE ENGINE,INTERNATIONAL JOURNAL OF RESEARCH IN AERONAUTICAL AND MECHANICAL ENGINEERING. 2.A REVIEW ON SIX STROKE ENGINE,Vikash1, Prakash Kumar Sen 2,Gopal Sahu3, Ritesh Sharma4, Shailendra Bohidar5 -INTERNATIONAL JOURNAL OF RESEARCH IN AERONAUTICAL AND MECHANICAL ENGINEERING.3.www.nutrientsreview.com4.en.m.wikipedia.org/wiki/Multifuel5.https://en.m.wikipedia.org/wiki/Six-stroke_engine

x

Hi!
I'm Freda!

Would you like to get a custom essay? How about receiving a customized one?

Check it out