This solar ventilator removes hot humid air from roof spaces much more efficiantly than normal wind turbines
Simple instructions show you how to cut a 3 inch hole or drill a pattern of small holes in your structure...
This is a mini solar panel with motor and plastic fan for school projects, experimenting, hobbies, etc. Let your imagination go wild! Comes with solar cell, motor, fan and 3 feet of wire connected to the motor...
Other ways to control light energy from the sun or not.
I will create a power source. homemade solar cells and determined and fans. (Air) following. Solar cells are expensive and not actually creating more energy. Area is approximately 30 cm2. I see that it is possible to build solar cells themselves, but they generate much less power. So what can I use instead of solar cells. (For the sun light or UV radiation). How to create solar cells more efficient at home instead of buying some? PS how this project in school so I need a cheap and effective solution. Thank you!
You could easily build a solar heater itself. Solar heating only. Panel a channel or pipe through the water. solar concentrators (parabolic room or lens). Which collect and concentrate the sun's energy to heat water. Remember kill ants with a magnifying glass or not this same principle. Machine can generate solar electricity efficiently if water vapor can be opened. You can use if you steam turbine. Is (could not). Or you can create a small fan motor is connected. DC and a fan with less steam and steam from the tube end. This should be easy enough to generate electrical power or some small light bulb. LED's. In the experiment, you'll need at least few dozen plastic glasses and may extend about. This 6 feet of 1 / 8 diameter. "Copper pipe. Copper pipe usually costs. Door bucks per foot, and you can get people who are most favor expansion glasses dollars or thrift stores. I can think of easier ways to make it to the second panel and create a long flat shelf. L form. Straight from the main pipe and a copper panel. Here's cross - section. See what I mean. ... | `| | | O <---- |.|____ |_____| copper tube and then screw the glass boats to extend the right of the bottom. Committee to ensure that the distance between copper pipes and lenses that match the focal length of the lens for maximum thermal energy. | `| | | O. ....() <---- expansion lens |.|____|| |_____|| then attached to a water tank beside the point of the tube. contraption to see the sun and heat will be. How is the sound. Such fun projects. Enjoy and good luck. .
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