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Posts tagged Surface
OTHER THAN SIZE AND SURFACE AREA, WHAT MAKES A BLADE DESIGN FOR A WIND TURBINE EFFICIENTNT?
Jul 19th
Question by Khaled:
Other than Size and surface area, what makes a blade design for a wind turbine Efficientnt?
So i am making a wind turbine, and i know that the more blades more surface area would make it more efficient, but what aspect in the design would make it most efficient , because i want to compare different designs and come up with a central rule for blade efficiency, Can anyone help?
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SOLAR PANEL VENTILATOR VENT FAN FOR HOUSE, HOME, ROOF, SHED, BOAT – MOUNTS ON ROOFING, FIBERGLASS, WOOD, METAL, GLASS ALMOST ANY TYPE OF SURFACE
Dec 17th
- Easily Mounts on Ceiling, Wall, House, Car, Boat, RV, Shed, Doghouse, Outhouse, You Name it!
- No operating cost, charging by solar is free, safe, fast and easy
- Helps to keep air fresh and removes odors from cooking, animals, etc Lets hot air out & cool air in
- Circulates the air slowly and smoothly Weather resistant, and water resistant
- Simple, simple to install, no wiring, no plugs, no electricity, no battery, no noise
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. The solar vent comes with a mounting base plate for the outside and a vent grill plate for the inside
Specs:
Voltage Voc: 2V
Current Isc: upto 400mA
Inside grill size; 6×6
Outside mounting plate; 6×6
Fan unit; 5 1/2 in.
Built in solar panel; 4 1/2 in.
List Price: $ 49.95
SALE Price: $ 31.79
Rating: 
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WHAT HAPPENS TO THE SOLAR ENERGY THAT REACHES EARTH’S SURFACE, BUT IS NOT REFLECTED BACK INTO SPACE?
Sep 27th
Question by :
What happens to the solar energy that reaches Earth’s surface, but is not reflected back into space?
What happens to the solar energy that reaches Earth’s surface, but is not reflected back into space?
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20INCH TUBE LIGHT 30 SURFACE MOUNT ULTRA BRIGHT LED’S, WARM WHITE 2045WW
Feb 20th
- 30 Super Bright White Surface Mount LEDs (SMT)
- Bulb Life:100,000 Hours
- Power Supply:10 30 Volt AC/DC
- Light Output:540 Lumens
- Length:20″ Width: 3/4 Thickness:1/2
20inch Tube Light 30 Surface Mount Ultra Bright LED’s, Warm White 2045WW
SOLAR PANEL VENTILATOR VENT FAN FOR HOUSE, HOME, ROOF, SHED, BOAT – MOUNTS ON ROOFING, FIBERGLASS, WOOD, METAL, GLASS ALMOST ANY TYPE OF SURFACE
Feb 2nd
- Easily Mounts on Ceiling, Wall, House, Car, Boat, RV, Shed, Doghouse, Outhouse, You Name it!
- No operating cost, charging by solar is free, safe, fast and easy
- Helps to keep air fresh and removes odors from cooking, animals, etc Lets hot air out & cool air in
- Circulates the air slowly and smoothly Weather resistant, and water resistant
- Simple, simple to install, no wiring, no plugs, no electricity, no battery, no noise
Product Description
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. The solar vent comes with a mounting base plate for the outside and a vent grill plate for the inside
Specs:
Voltage Voc: 2V
Current Isc: upto 400mA
Inside grill size; 6×6
Outside mounting plate; 6×6
Fan unit; 5 1/2 in.
Built in solar panel; 4 1… More >>