1. Stirling Engine Design Team: Do Mike Ortiz Jesus Villanueva Harvey Vazquez Steven Castellanos Nick Cruz East Los Angeles College General Engineering 101 Professor Artin Davidian

2. Brief History Created and patented by Robert Stirling (1790-1878)
Invented stirling engine in 1816 which could not explode and produce more power.
First patented Sterling Engine called “Economizer”

3. What is a Stirling Engine
Device that converts heat energy to mechanical power by alternately compressing and expanding a fixed quantity of working fluid at different temperatures.

4. Environmental Flexible with all sources of energy Solar energy
Hydro energy

5. Pros Heating source is external
The pressure in a sterling engine is very consistent
There is no required air source
, the method for heating is very flexible
So the sterling engine does not require an open flame heat source, but any source of heat from nuclear to solar heat. This leads the sterling engine to be fairly flexible.
and because of this, the engine can be designed to the specific pressure which intern reduces the chance of an explosion that was faced with the steam engines of the time.
An additional benefit is that a sterling engine can be built to be quiet further aiding the use in submarines.
If a sterling engine is being used to pump water, the water can be used as a coolant and in the process, make a more efficient process.
With a continuous heat source, emissions are more readably controllable which leads to better emissions.
a sterling engine is ideal is applications such as submarine and in space.

6. Cons Heating source is external Gas is contained with in the engine
Current methods for cooling
the engine requires time to warm up before any power can be produced.
Because of this, the cost material used would increase the cost and the cost of maintenance would increase the overall cost of the engine.
the engine itself must be able to resist the temperature and the corrosion.
To get the most out of a sterling engine, the temperature difference must be as large as possible. Because of this, the cooling fins on a sterling engine could be quite large and improbable in particular applications. This is a leading factor to why sterling engines are not used in airplanes or automobiles.

7. The Stirling Cycle
Process breakdown

8. The Stirling Cycle
Materials used utopia.
η = 1 - TC TH
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9. Types of Stirling Engines
1.Alpha Stirling Engine- contains two power pistons in separate cylinders, one "hot" piston and one "cold" piston. 2.Beta Stirling Engine- single power piston arranged within the same cylinder on the same shaft as a displacer piston. 3.Gamma Stirling Engine- power piston is mounted in a separate cylinder alongside the displacer piston cylinder

10. Types of Stirling Engines
Alpha
Beta
Gamma

11. Alpha Stirling Engine
Contains two power pistons in separate cylinders, one "hot" piston and one "cold" piston.

12. Beta Stirling Engine
Single power piston arranged within the same cylinder on the same shaft as a displacer piston.

13. Gamma Stirling Engine
Power piston is mounted in a separate cylinder alongside the displacer piston cylinder, but is still connected to the same flywheel.

14. Components Pink – Hot cylinder wall Dark grey – Cold cylinder wall
    
Components
Pink – Hot cylinder wall
Dark grey – Cold cylinder wall
Yellow – Coolant inlet and outlet pipes
Dark green – Thermal insulation separating the two cylinder ends
Light green – Displacer piston
Dark blue – Power piston
Light blue – Linkage crank and flywheels

15. How it Works
The pressure chamber contains air that is held inside the sterling engine while bottom part of the engine is warm while the top part of the engine is cool.
When the air is warm it expands and pushes out on the driver mechanism.
The drive mechanism pushes and pulls on the crank shaft which causes the crank shaft on the wheel to rotate.

16. Applications 1.Water pump stations 1. 2.Solar power generation 2.

17. Applications 3.Heat pump 3. 4.Marine engines 5.Nuclear power 4. 5.

18. Applications 6.Aircraft engines 6. 7.Micro CHP 7.

19. Conclusion Unlimited source of heat source.
Political awareness of green heat and power production.
Large market experiencing rapid growth.
Many different possible applications.

20. Video

21. Sources http://www.stirlingshop.com/html/stirlingengines_types.html
ELAC- G.E. 101 (Stirling Engine Final Design Project) Team: Fast Five (YouTube)

22. Thank You