shorttyd
1 W
So, wind energy is impractical for electric bicycles?
Wing in Wheel, Downwind faster than wind
- Thread starter shorttyd
- Start date
shorttyd
1 W
Instead of a trailer with a big wind turbine in it, I should have a trailer with a gas generator.
el_walto
10 kW
Well, your upside down wheel idea would potentially work if you had a generator installed on the wheel (hub motor). But a bike wheel is not 2.4 meters wide, and doesn't move with the wind direction, so you will get much less than 250Watts at full wind.
shorttyd
1 W
It also weighs less than a solar panel. Just sayin, don't kill a good idea. I like the friction drive better, then I can take it off the wheel when I'm not using it to regen on the road.
shorttyd
1 W
Still lighter than a gas generator.
gestalt
10 kW
the gas generator will provide power while in motion, the wind turbine trailer will only be a drag on the system.
maybe if you had it as a folding unit to provide stationary charging on a windy day. otherwise we would have trains, cars and all other forms of transportation covered in windmills.
maybe if you had it as a folding unit to provide stationary charging on a windy day. otherwise we would have trains, cars and all other forms of transportation covered in windmills.
shorttyd
1 W
The turbine does not drag. The profile of the air foils allows the air to impart only angular motion to the turbine. There are vehicles that move down wind faster than the wind, and towards the wind faster than the wind that are not electric. They use a differential.
http://www.wired.com/autopia/2010/06/downwind-faster-than-the-wind/
http://www.wired.com/autopia/2010/06/downwind-faster-than-the-wind/
shorttyd
1 W
I am going to make you guys get your trailers out no matter what. Then I am going to get you to put a turbine on your front wheel.
Why not build something you dont need to charge 450km(279mi) long? 
shorttyd
1 W
You messin with me?
Drunkskunk
100 GW
This may be the best troll we've had on the forum in a while.
shorttyd
1 W
Load dump, rectifier, charge controller, AC vs DC alternator. Yada yada.
Hillhater
100 TW
http://endless-sphere.com/forums/download/file.php?id=101544shorttyd said:
with enough of these, hooked up to power refrigeration units, you could reverse global warming !
shorttyd
1 W
What can I say? The outdoors type are offended by global warming.
dogman dan
1 PW
And while you ride, the thing will create drag. So the vanes will have to be something you remove from the spokes to ride.
It could work good in a spring tour out here in the west. God knows, you'll be wanting to stop every afternoon if you are riding west, into the wind.
It could work good in a spring tour out here in the west. God knows, you'll be wanting to stop every afternoon if you are riding west, into the wind.
shorttyd
1 W
Just so you know, with the extra mass of the wheel, you only need one blade. It will be balanced enough for the one blade to turn the wheel.
dogman dan
1 PW
Boo Ya. Best laugh all day. Thanks. I don't have a quadurple facepalm pic handy though.
If riding downwind, open up your coat and hold it out, works great. Upwind, you need a sail, and even then you have to tack into the wind at no more than about 45 degrees. Hard to do on a narrow road, so it never caught on exept on the beaches and salt flats.
Wind power is fun shit, I highly recomend it. With a windsurfboard. You ain't lived till you've tried to jibe into a 50 mph gust.
If riding downwind, open up your coat and hold it out, works great. Upwind, you need a sail, and even then you have to tack into the wind at no more than about 45 degrees. Hard to do on a narrow road, so it never caught on exept on the beaches and salt flats.
Wind power is fun shit, I highly recomend it. With a windsurfboard. You ain't lived till you've tried to jibe into a 50 mph gust.
shorttyd
1 W
I have to say that I am disappointed in the response to my idea.
shorttyd
1 W
Does this elitism attract manufacturers? I don't see a lot of you with aerodynamic lipo, or carbon fiber.
shorttyd
1 W
I have a guy that is puking all over my thread call me a troll, then a mod follow suit.
shorttyd
1 W
You guys don't even want to know stuff like, traditional turbines with a horizontal axis are lighter for the power than the turbines with vertical axis.
spinningmagnets
100 TW
Sounds unusual, perhaps if you built a prototype and uploaded a video of it in operation?
shorttyd
1 W
That's a fine turbine. Newspaper has a low coefficient of friction and is cheep. In a stiff wind I'd say its good for a couple hundred watts.
shorttyd
1 W
Just in case anyone need a test pilot.
