Entries Tagged as 'FRESNEL'

STIRLING ENGINE SOLAR POWER FRESNEL LENS


www.greenpowerscience.com This is a new design I found, they work with a Fresnel Lens or a Parabolic Mirror. Strong and efficient for its size. A proper Fresnel Lens. Also a Dual Rotor Axial Flux Generator. Most people try a plastic reflector from the back, this is a poor option. Also if you use a standard “Dynamo” for power, you will be lucky to get 3-10 watts. Stirling engines are hindered by “COGGING” Axial Flux limits cogging. Still the overall cost and time to get a max of 40 watts. Solar Panels are by far the best option. But these are fun for sure. We have been trying different videos and had a run of experiments not going right. Also Florida is very cloudy from June – July, this video took 4 hours to shoot waiting for the clouds.

FRESNEL LENS SOLAR HOT WATER, Heat Solar Pool Heater Solar Swimming Pool Heater


greenpowerscience.com This is a large Fresnel Lens focused on a copper tube with a 12 V pump (powered by two 6 watt solar panels) with water circulating through the unit. Water, seven gallons, was raised from 63 F to 106 F in one hour. It is not super efficient as heat is lost at the open top of the glass tank. This is designed to illustrate one method of solar heating a swilling pool with a Large Fresnel Lens. TESTING HDD AQUA BLOCK.