22-08-2012, 12:56 PM
TECHNICAL PAPER ON POLLUTIONLESS ENGINE
POLLUTIONLESS ENGIN.docx (Size: 201.39 KB / Downloads: 104)
ABSTRACT:
The quest of human beings to develop engines with high power, high torque, less vibration and most essentially with no pollution is on since the discovery and development of engine. Stirling engine is just one step forward towards the creation of a noise free and pollution less engine.
The Stirling engine is the engine, which uses a fixed amount of gas sealed inside a cylinder. The expansion and contraction of the gas, using heat from external source, creates the useful work. The main advantage of this engine is its capability to use any type of fuel and the emission of no exhaust gases.
Due to this pollution free and use of any type of fuel characteristics the Stirling engine shows a greater potential over any other type of engine existing today. To consolidate this claim an effort has been made to develop a working model of Stirling engine.
INTRODUCTION:
All of us including the lamest of laymen would have at one time or another experienced problems with our vehicles engine and most of the time after moaning and cursing finally in line with the universe and accepting our doom we would have coughed up the cash for repairs and parts and insistently taken old parts home, disregarding the fact that no descent human would have wanted them and during this exercise in existence it is doubtful that anybody would have chance to miss seeing a piston or two, this ubiquitous creatures that scurry up and down in an enclosed cylindrical space, getting their crowns slammed regularly and unceremoniously…eventually to be thrown aside and replaced by a marginally wider chap. Doubtful that any of us would be able to imagine modern travel without an internal combustion cycle. Hell if we ask our mechanic if he has ever seen a vehicle without any exhaust then he is probably going to refer to you to the nearest shrink.
So an engine without any exhaust gas is a mirage or it can be a reality? The answer for this is definitely yes. We can have an engine without any exhaust gas and that is what a Stirling engine is.
STIRLING ENGINE:
The Stirling engine is a heat engine that is vastly different from an internal
combustion engine. Stirling engines have two pistons that create a 90-degree phase angle and two different temperature spaces. The working gas in the engine is perfectly sealed, and doesn't go in and out to the atmosphere. The Stirling engine uses a Stirling cycle, which is unlike the cycles used in normal internal combustion engines.
TWO PISTON TYPE STIRLING ENGINE:
The two-piston type Stirling engine uses two power pistons. Out of the two pistons one is hot piston, which is used in hot chamber, and the other one is a cold piston used in cold chamber. The space above a hot piston is always heated by a heat source. The space above a cold piston is cooled always by cold air.
DISPLACER TYPE STIRLING ENGINE:
The displacer type Stirling engine
Uses a power piston and a displacer. The space below a displacer piston is always heated by a heat source. The space above the displacer piston is cooled always by cold air. The displacer piston displaces hot air and cold air.
CONCLUSION:
The Stirling engine, types, parts; working cycle, advantages along with recent applications has been empounded in this paper.The Stirling engine is the engine, which uses the gas sealed inside the cylinder. The expansion and contraction of the gas, using heat from external source, creates the useful work. This engine can work on any type of fuel whether it is conventional or non-conventional fuel. And the basic advantage of this engine is that the amount of gas inside the chamber remains fixed that is there is no exhaust and hence this engine is pollution less.
Due to this pollution free and use of any type of fuel characteristics the Stirling engine has greater potential over any other type of engine existing today. Hence this engine is highly preferred in automobile sector finding its application in submarines to hybrid cars. Due to the above specified advantages the striling engine is giving a cutting edge to all other engine existing today and is viewed as an answer to the existing energy crisis.