DIY wind turbine project goes open source If you live in an area that sees a fair amount of wind and you’d like to reduce your utility bill by harnessing some of that wind power, a wind turbine might be a good idea. The trouble with most commercially made home wind turbines, though, is that they’re fairly expensive, extremely tall and, if you have neighbors, they might not appreciate the new addition to the neighborhood. Washington state resident and do-it-your-selfer Make Marohn came up with an inventive alternative. It’s called The Zoetrope and it’s a vertical-axis wind turbine made out of easily attainable parts and, according to this article, it can be assembled by just about anyone. Applied Sciences indicates Marohn’s intention for this project was to reduce his water heating bill.
Divers plans updated December 2008 Created for Intermediate Technology Development Group (ITDG), as part of an overseas aid project for DfID. There are 3 booklets available as downloads. Wind Turbine Design – The Most Amazing Windmills in the World A journey through the evolution of the most spectacular wind turbines designs in the world - Looking for an environmentally friendly energy source while looking gracious, aesthetic and beautiful? The answer is blowing in the wind! Wind turbines float in the air, some rotate horizontally, others vertically. Some are lighter-than air while others are majestically integrated into skyscraper buildings.
Make a Wind Generator Make: Projects With a motor and some piping, it’s easy to enjoy free energy forever. There are no limits to what you can do with wind power. It’s abundant, clean, cheap, and easy to harness. We designed this Chispito Wind Generator (that’s Spanish for “little spark”) for fast and easy construction. Most of the tools and materials you need to build it can be found in your local hardware shop or junk pile. Small Wind Turbine Farm Nearly Complete at Quinnipiac University Adobe’s installation of 20 small wind turbines on the sixth floor of their headquarters building made big news recently. But this is even bigger. Quinnipiac University in Connecticut is putting the finishing touches on a micro wind turbine cluster on its new green campus in York Hill. How I built an electricity producing wind turbine Several years ago I bought some remote property in Arizona. I am an astronomer and wanted a place to practice my hobby far away from the sky-wrecking light pollution found near cities of any real size. I found a great piece of property.
Savonius Wind Turbines What is a savonius wind turbine - savonius (VAWT) home > wind | education A Savonius is a type of vertical axis wind turbine (VAWT) generator invented in 1922 by Sigurd Johannes Savonius from Finland though similar wind turbine designs had been attempted in previous centuries. The Savonius is a drag-type VAWT which operates in the same way as a cup anemometer (pictured below). Looking at the anemometer, it has three cups mounted on a rotor which is free to spin.
Wind Power Generators Annual Output (KWH/year) = 0.01328 (D^2) (V^3) source... Where D^2 is the blade diameter in feet squared, and V^3 is the wind velocity cubed in mph -- this is the year round average wind speed -- see wind maps below. So, a 10 ft diameter wind turbine in 12 mph average winds might produce about (0.01328)(10^2)(12^3) = 2300 KWH/year Note that the energy produced is proportional to the cube of wind speed -- having enough average wind speed is everything in wind turbines.
MICRO WIND TURBINES: Small Size, Big Impact Conventional wind turbine technology has been a bit out of reach for most residential consumers living in urban areas—until now. Researchers at Hong Kong University and Lucien Gambarota of Motorwave Ltd. have developed Motorwind, a micro-wind turbine technology small enough for private use in both rural and urban environments. Unlike large-scale wind turbines, Motorwave’s micro-wind turbines are light, compact (25 cm rotor diameter), and can generate power with wind speeds as low as 2 meters/second. The gear-like turbines can be linked to fit just about anywhere and a row of eight turbines costs just $150 for now (prices may decrease once the turbines are mass produced).
Making a simple Savonius wind turbine by Lance Turner There are many situations where you might need a small amount of electricity, for instance running gate openers, safety lights, water level indicators and other low-power devices. While solar would seem like the ideal solution, quite often this is not possible due to location and shading problems. Just such a situation arose when I decided to make our new gates automatic. There were just too many trees in the way for solar power to work, and I didn’t want to run power some 30 metres or so from the house, as it would have meant digging a trench for the cables, which is almost impossible in our rocky ground. Involute Wind Turbine A vertical axis wind turbine has several advantages over the more traditional horizontal wind turbine especially in uneven wind conditions, where a horizontal wind turbine has to change directions, which puts stresses on the bearings and tower and dissipates energy, Gravitational stresses on the vertical axis turbine are even, allowing lighter and larger construction. This vertical-axis wind turbine incorporates 3 involute spiral sails in a configuration that utilizes the mass momentum of the wind to spin the sails around a central mast. Force is applied to the sails by the wind both entering and leaving the turbine, allowing maximum extraction of energy from the wind. The unique nature of the involute spiral is that the wind is increasingly diverted into and out of a central vortex with no constriction in the path, only smoothly-diverting surfaces.
How I built an electricity producing wind turbine Several years ago I bought some remote property in Arizona. I am an astronomer and wanted a place to practice my hobby far away from the sky-wrecking light pollution found near cities of any real size. I found a great piece of property. The problem is, it's so remote that there is no electric service available. Home-Built Windpower updated January 2007 firstname.lastname@example.org This page is designed to help those who plan to build their own wind turbine. I hope you find it useful. Some of it is getting a bit dated - especially the stuff about brakedrums. I am teaching workshop courses in wind generator construction, here in Scotland and also in the USA and Wales.