WindMax V20 home wind turbine with auto furling and electric braking.
Duration : 0:1:44
Atlantic Energy Solutions is a globally accredited Energy Efficiency and Resource Company and member of NAESCO that identifies, implements and finances energy efficiency projects designed to improve the overall efficiency of energy, water usage and renewable resources, reducing our dependency on foreign oil and diminishing our carbon footprint. Headquartered in Saratoga Springs, NY and with a satellite office in Fairfield, NJ, Atlantic Energy Solutions esses the energy demands and usages of municipal, corporate and industrial complexes to improve conservation and apply measures to bolster savings at the consumer level.
Duration : 0:2:36
My version of the 55 gallon drum Vertical Axis Wind Turbine. Savonius? I am using two bearings with a flange which holds 4 carriage bolts mounted on a frame made of 2×4s. The inside diameter of the bearings are 1″. I am also going to try a 10″ diameter pulley to connect a belt drive to the generator(dc motor). I just got it mocked up for the first time today. I have the motor, rectifiers, and capacitors ready to install. If it produces 12 volts in a moderate wind then I will try connecting it to my solar/wind charge controller and a battery bank for a small off grid system. The bearings also have a grease fitting. The man at San Antonio Belting and Pulley Co. was very helpful. It spins freely but it takes two small oscillating fans on high to maintain about 20 rpm. If I set the fans on medium it will spin but much slower and it eventually stops altogether if I put the fans on the lowest setting. No, it won’t fit out the door. I have to remove one set of barrel halves and the temporary braces before I can remove it from my living room. The motor I am using as a generator weighs 25 pounds. I am going to mount it at the top of the frame and put a cover over the top to protect it from the elements. I ordered another motor/generator which weighs 40 pounds which I may try to see if it will produce more power. It would be easy to connect two generators to the shaft but I don’t know if the turbine will be powerful enough to spin them both.
I probably should have looked for cheaper bearings but I spent $35.00 each for these two. i also purchased a pulley which was $10-$15 as well. The one inch pipe and electric motor/generator only cost a few dollars ($6.00) because I paid twenty cents per pound scrap metal prices at the steel recycler. My wooden frame which originally was supposed to be temporary is beefed up a bit with corner bracing from Lowes/Home Depot. The barrels are connected together with three 5/8 x 6 deck boards cut in 20 inch lengths and 1 1/4 inch deck screws.
In this version with one inch diameter axle I realized it is much easier to emble the turbine if you drill the one inch holes in your barrel before splitting it in half. My turbine has 50% overlap and the axle holes happen to be exactly 12 inches apart on center.
I was suprised how quiet it is. At least when I spin it by hand. I have yet to test the turbine in the wind. Generator and electronics are not installed yet.
Turbine related photos will be posted here: http://www.flickr.com/photos/dolinick/sets/72157613585833882/
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doing some flying in the vertical wind tunnel. it a outside complex and its raining while im doing it. location is maggie valley / waynesville north carolina
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what does it do for your house
It's basically a reverse electrical engine. The engine takes electricity and turns it into motion. The wind generator takes motion and turns it into electricity. However, if you don't have a constant wind, they can sit idle for no apparent purpose. Most wind farms are situated where the wind is predictable in both direction and speed, like a mountain pass. If you live near a coast, you might get a sea breeze every afternoon but not necessarily enough to generate enough electricity to make the investment worthwhile.
The generator needs to be connected to the house electrical service, but must have cutoff to keep electricity from going into the grid if a power line goes down. (You don't want to fry a utility employee.) Also, the wiring must be checked by the fire department and building department. For a tower holding a wind generator, a structural engineer might be required too.
I'm going to be mounting several pieces on a dolly such as a plastic bin to hold a battery inside, a voltage regulator, and inverter will be on top and a solar panel on the top (50 watt).
If you ground a circuit, then it isn't floating is it?
Since you don't know electricity, you should consult an engineer.
I'm building a small vertical axis wind turbine for a school project. I wasn't getting the voltage I needed with wind from the fan I had, so I decreased the radius to increase the rotational velocity. When I halved the radius (and doubled the RPMs), the voltage more than quadrupled. Is this an accurate relationship? Or should the relationship be linear and some other factor accounts for the increase in voltage?
Generators are usually wound to be linear over their usual operating range. When running slower than that the voltage will increase with speed but with no guarantee of linearity.
for generating electricity. If you say cost, please indicate what price you WOULD be willing to pay.
thanks
The cost is not the factor, it's the return on my investment. If it takes more than 5 years to realize the savings, I don't bother. Solar panels have a ROI of over 15 years. I may not be in the house to realize the savings.
Wind Turbines are rotating with the force of wind and the generators convert the kinetic energy to electrical energy,
With the geothermal energy the hot geothermal liquid is used to produce hot steam and steam rotates the turbines and then again kinetic energy is converted to electricity.
I've written few articles on that subject, just check them if you need more info.
just a quick video of solar and wind turbines