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OS:Stirling Engine by GreenPowerScience

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Page first featured January 24, 2009

Build a Stirling Solar Engine with Off-the-Shelf Parts

Dan Rojas, the host of Green Power Science, illustrates how to build a Stirling engine using off-the-shelf parts, including a timing chain wheel for the flywheel, metal cans for the displacer piston, drill paddle bit for the shaft, computer heat sinks, steel pipe, air compressor piston.

The presentation is not yet complete, but provides some interesting ideas about how to get started.

Additional videos by Rojas illustration Stirling engines being powered by concentrating the sun via parabolic dishes and Fresnel lenses.

In all, these provide a great overview of the basics of Stirling engine technology.


Official Website


Stirling Engine from Off-the-Shelf Parts

(9.17 Minutes)

  • STIRLING ENGINE TAKING ONE APART HOT AIR ENGINE Solar Powered Sun Generator Motor This is an introduction to some basic Stirling Engine Parts and some ideas on how to create an Off The Shelf Project. (YouTube; January 04, 2009)
    • Shows the basics of how a Stirling engine works.
    • Explains why Hydrogen is not the target gas to use in the closed-loop system because of how difficult it is to keep hydrogen from leaking, and that regular air works fine as the working compression/expansion gas.
    • Cylinder is not tight, but allows gas to flow around it.
    • Cylinder should go nearly to the very end of the chamber in its cycle, both in and out.
    • No gasket, in order to reduce friction, which would kill performance.

- - - -

Fresnel Lens Powers Stirling Engine

(5.16 Minutes)

  • FREE ENERGY SOLAR POWER STIRLING ENGINE FRESNEL LENS This is the first segment of our half-hour weekly program. Available in HD. Shot with a Canon XH A1. THIS IS THE FULL VERSION. (YouTube; November 14, 2007)
    • Includes explanation of the Stirling cycle, with animated diagram overlaying an operating engine.
    • Features Stirling Energy Systems' 25-kW concentrated solar units

- - - -

(3.24 Minutes)

  • FRESNEL SOLAR STIRLING ENGINE SUN POWER ALTERNATIVE ENERGY STIRLING MOTOR GENERATOR This is one of my many Stirling engines that were the inspiration for the solar steam stirling hybrid. (YouTube; September 25, 2007)

- - - -

(2:34 Minutes)

  • STIRLING ENGINE FRESNEL LENS SOLAR POWER GREEN ENERGY SUN Stirling engine and a Fresnel lens 1800 rpms. Had to stop as engine heat was getting too hot. (YouTube; August 17, 2007)

- - - -

Parabolic Dish Powers Stirling Engine

(2.08 Minutes)

  • STIRLING ENGINE SOLAR POWER PARABOLIC MIRROR ELECTRIC GENERATOR This is a larger Stirling engine that has a 12v DC Permanent Magnet motor operating fixed as the flywheel bearing. It produces 15 Volt max with NO LOAD. This setup as is produces about 15 watts. The heat sink is a water cooled tank that is a bit short for the displacement piston but does work. I will be adding some heat sinks soon and testing it with the 56 inch dish and a Fresnel Lens. The motor/generator has an additional pulley that the other engine I have may be tied to. The water can be fed continuously or as a tank. (YouTube; January 14, 2009)

- - - -

(1.52 Minutes)

  • SOLAR STIRLING ENGINE PARABOLIC ALTERNATIVE ENERGY Aluminum Bowls as Parabolic Reflectors. Stirling Engine Running off of One. Different Stages of Polishing. (YouTube; December 18, 2007)
    • 24-inch-diameter dish.

In the News

  • Featured: DIY > Stirling Engines / Solar >
    Build a Stirling Solar Engine with Off-the-Shelf Parts - Green Power Science host, Dan Rojas, presents the basics of Stirling engine operation, suggesting how make one from off-the-shelf parts including a timing chain wheel for the flywheel, metal cans for the displacer piston, drill paddle bit for the shaft. (PESWiki; Jan. 24, 2009)


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