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Vent, éolien

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Ted Baer's Bicycle Wheel Windmill. Ted Baer has created a series of small windmills designed for third world use over a period of three decades.

Ted Baer's Bicycle Wheel Windmill

This first in the series has evolved in simplicity and power. The aluminum vanes are constructed from a building flashing roll utilizing the pre-existing bend of the roll in construction. Two 16 " sections are riveted together to make one vane. The vanes clip on the spokes of the bicycle wheel using a "bent nail" and a bend in the vane. Detailed pictures will be provided shortly. Output is a respectable 2 amps at 12 mph (18-20 volts) providing a cost effective alternative to a solar photovoltaic panels (if wind is available).

The windmill does have a tail (see new photo). The generator is a 24 volt DC permanent magnet motor. Lenz2 wind turbine. This instructable will show you how to build a Lenz2 wind turbine from materials you have around the house.

Lenz2 wind turbine

The design was developed and tested by Ed Lenz of The Lenz2 VAWT (Vertical Axix Wind Turbine) is 4 foot tall and 3 feet in diameter. It is a basically a Savonius style turbine but with the refinement that the three wings are shaped to provide lift as well because or their teardrop configuration. In the above link Lenz describes how he placed an ananometer inside the stational turbine and showed that the windspeed picked up passing past the solid portion of the wings.

This turbine is more efficient than a pure Savonius in that it provided both drag and lift. In my design I scaled down the diameter to approximately 18 inches and the height to 21 inches. I was able to use materials I had on hand to build the turbine. Construire une éolienne à axe vertical. Accueil » Fiches techniques » L'énergie et la motorisation Présentation Cette fiche contient les plans pour vous fabriquer une petite éolienne à vitesse constante.

Construire une éolienne à axe vertical

Le but est d'arriver à la faire avec du matériel de récupération. Elle est capable de faire débiter entre 600 et 700 watts à un alternateur par un vent de seulement 30 km/h. Peu importe d'où vient le vent, de part sa conception, elle est toujours au top. Principe de fonctionnement Quatre pales en forme de godet tournent sous l'action du vent (fig. 10). Liste des matériaux Construction des pales Elles sont au nombre de quatre et sont taillées dans de la tôle de 2 mm d'épaisseur. Les supports de pales Support inférieur Support supérieur La croix de liaison Biellette et accessoires Le socle Il se compose de quatre pieds reliés par deux plateformes. Position des pales en fonction du vent. Auto-construction d'une éolienne. How to- Wind Turbine Made from Scrap Metal...

This is my first Instructable so bare with me.

How to- Wind Turbine Made from Scrap Metal...

This following Instructable is for A Wind Turbine that i Designed and Made out of Salvaged and Recycled Materials Because of the nature of the materials,everybody building them this way will all be different, don't let how i made this turbine affect how you make yours. build it with what you got. Wind turbines are not only Great to make but if made right can be good source of electricity. Camping Wind Turbine. Camping's all about enjoying the outdoors; but let's face it - electronics are hard to power in the outdoors...There's nothing worse than pulling out your camera to snap a photo of a great view and finding out your battery's dead!

Camping Wind Turbine

Generators are heavy and difficult to lug around, and so the perfect solution is a green source of free energy: the wind! Although this turbine -because of its small size and lightweight nature- isn't exactly going to run at 120V, it's capable of charging batteries and such. But when the whole thing weighs only 16 ounces, i'd say that's a fair trade off. DIY Wind-Powered Water Pump. Like my outdoor chandelier project, most of the parts for this wind pump came from the bicycle shop dumpster.

DIY Wind-Powered Water Pump

I don't know the names for all these parts, so I'm not naming them. What I can say is that the gear-looking pieces were not gears on the bikes (I turned them into gears by adding bolts). I found them on mountain bike wheels, and they can only be installed on a wheel that had one in the first place. I'm also not sure what the best order is for putting this wind pump together, so I'll just rattle off what I did. 1. Added small bolts into every other hole in one of the "gears.

" I had to do a lot of shimming and shaving to get things to fit. Unique Wind turbine. Very adaptable design. How to build a wind turbine. Here we are going to make the two disks that the turbine blades fit on.

How to build a wind turbine.

First of all, mark a centre point on your MDF board. Use a compass to draw a circle with a radius of 160mm. Using a band saw, cut the circle out and use a sander to smooth the edges. Trace around the circle and use it to produce another disk of the same size. Find the centre point of these circles and use it to draw a 5 pointed star on each one. At the end of this step you should have 2x MDF circles split into 5 segments. William Kamkwamba : Comment j'ai exploité le vent.