Solar Powered Stirling Engine — Using Fresnel Lens

This is an LTD Stirling engine running on solar energy using a Fresnel lens to concentrate the sunlight. The engine is right side up with the bottom cooled by an aluminum computer heatsink sitting in a small pool of water. Wind and evaporative cooling help maintain the temperature differential. Concentrated sunlight from the Fresnel lens provided the heat for the top plate.

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