CoolIP index Most recent edit: Wednesday October 30, 2013 SearchSite
* See legal note below.
Crosswind Kite Power at Texas AWE Encampment in October 2013
At last, this 12 second proof-of-concept video* emerges from the TX AWE
Using a stock 7 sq meter NASA Power Wing piloted by a human kite master seated at a pilot station with a MegaBar in his hands, we have made the world's cheapest demonstration of pure crosswind kite power. No Yo-Yo, no retraction phase, no need for down wind airspace, no carbon fiber, servos, nor sensors. The design is wonderfully scalable: Just add more kite, a bigger generator and a cushier seat :^)
The kite engine is built around a flip-flop double-freewheel bicycle drive train. When the kite goes left is spins the generator; when the kite goes right, it spins the generator. An artisan built concrete flywheel smoothes out the turn around for even power output. The steel cable is anchored on either side 4 ft deep into the Earth and tensioned by a large come-along. The kite's control lines feed through a kPTO (kite power take off) which is a triple racing block on a zip-line trolley connected to a secondary cable way by means of a jumper. The secondary cable way makes a loop through 4 pulleys with the kite engine in the middle of the loop. Simple and brilliant. Mounted on the kite engine is a 48v generator, belt driven from the flywheel.
For AWEfest 2014, an optimized system will feed into our micro-grid, along with the imputs of Rock The Bike, and all the aggregated inputs of the open source, DIY kite power community.
*please excuse crude videography. ~ edoishi
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