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GREEN POWER SCIENCE STIRLING ENGINE AND A FRESNEL LENS 1800 RPMS. HAD TO STOP AS ENGINE HEAT SHAFT WAS GETTING TOO HOT. This stirling engine converts heat into kinetic free energy from the sun.

A Stirling engine is a heat engine operating by cyclic compression and expansion of air or other gas, the working fluid, at different temperature levels such that there is a net conversion of heat energy to mechanical work. Or more specifically, a closed-cycle regenerative heat engine with a permanently gaseous working fluid, where closed-cycle is defined as a thermodynamic system in which the working fluid is permanently contained within the system, and regenerative describes the use of a specific type of internal heat exchanger and thermal store, known as the regenerator. It is the inclusion of a regenerator that differentiates the Stirling engine from other closed cycle hot air engines.
Originally conceived in 1816 as an industrial prime mover to rival the steam engine, its practical use was largely confined to low-power domestic applications for over a century.
The Stirling engine is noted for its high efficiency compared to steam engines, quiet operation, and the ease with which it can use almost any heat source. This compatibility with alternative and renewable energy sources has become increasingly significant as the price of conventional fuels rises, and also in light of concerns such as peak oil and climate change. This engine is currently exciting interest as the core component of micro combined heat and power (CHP) units, in which it is more efficient and safer than a comparable steam engine.[


  1. I head off to Africa every year. Would you like to help me set up and test some of these systems remotely? Can it generate electricity when tied to a generator? Have you done any more work on these?
    – Alex

  2. A buddy bought one of these from a little company in Phoeniz, AZ. We broke it in using it for a similar purpose as this fellow. I believe it's the same model engine. They are available online. Start by googling sterling or stirling engine model.

  3. A very good Stirling engine runs at around 40% efficiency–on par with the best steam turbine power plants. But being external combustion (BIG radiators), a piston engine, and therefore most suitable for small power production, little has come of them. They were once popular for running fans in the days of fired room furnaces.
    This little air-cooled variant would not be nearly that efficient, maybe 10%? Something like that.

  4. so how do i get to work on one of those things?? doesnt look like theres much room for shopping either. whats its top speed? no no i dont think this is going to work at all

  5. Here is a way that a residential house could effectively store solar energy during the five hours of good sunshine, to last for the full twenty-four hours. Use a hydraulic elevator system lifting a very heavy weight, where the energy is stored by the gravity of the weight. When the sun goes down,or when more power is needed during the five hours of good sunshine, the very heavy weight movement is reversed and the hydraulics is used to generate power.

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