Prepared by Modi Dhruv S. ( ) Prajapati Raj K. ( ) Patel Kautil.M ( ) Patel Raj A. ( ) Patel Jay A. ( ) Patel Vishvas A. ( ) Guide by : Mr. K.S.Patel

Index NoSr. noChapterPage no 1Introduction4 to 5 1.1Introduction4 1.2Idea5 2Abstract6 3Working of stirling Engine7 to Working7 3.2Types of stirling engine8 3.3Alpha stirling engine9 3.4Beta stirling engine10 4Diagram11 to Block diagram11 4.2The stirling cycle12 5Advantage13 6Conclusion14

Introduction First developed in 1816 by Reverend Dr. Robert stirling After development, had little use until the mid 1900’s, when it became more common Used today in many applications, primarily green energy, since the heat source can be anything (geothermal, solar, etc.)

stirling engine has a sealed cylinder with one part hot and the other cold In cylinder there should be air, helium or hydrogen. There will be one displacer which can be used for crankshaft motion. When gas hits up it expand and pressure on displacer It can also useful because we can give motion to any element by crank shaft. Mostly in solar power generation can be used where heat source is sun light.

IDEA There are two power generator for electricity. one is Diesel and another one is silent generator, but both are not cost effective At presence increasing diesel price day by day make it costlier. Thus we think machine that can generate electricity or also can be used for another motion And Also In our Workshop, There is no this type Machine. So, we think to make this type machine.

ABSTRACT In rural area electricity problem But its cost effective to supply electricity Thus in project we make simple stirling engine By that we can generate electricity Here we demonstrate it for simple battery charger. stirling engine when heated,there will mechanical motion in engine From that by rotating motor we generate 12v for battery charging or another application.

WORKING There is two end one hot and other cold When one end of stirling engine heated,air will expand and pressure displacer to move upward side By connecting this displacer to crack shaft we get mechanical motion And connecting motor after crank shaft we get 12v for battery charging After displacer reach top position, air cooled and piston move downward Again piston heated and move upward. By this back and forth movement we get continuous supply

Type of stirling engine Main application of the stirling cycle Uses pistons and cylinders to rotate a crankshaft Two types/configurations – Alpha and Beta Alpha Stirling engines use two cylinders and two pistons Beta Stirling engines use one cylinder, one piston and a “displacer”

Alpha Stirling Engine

Beta Stirling Engine

BLOCK DIAGRAM Crank shaft Motor Battery stirling engine Burner

The Stirling Cycle Process 1-2: Isothermal expansion 2-3: Constant-volume cooling 3-4: Isothermal compression 4-1: Constant-volume heating

Advantage Simple design Low cost Portable Good Performance Good efficiency

Conclusion Low torque In order to be more efficient, it requires metals with very high thermal conductivity, which can be expensive Rotation is not always smooth – the fluid sometimes heats up faster than it cools off