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The turbine measures 2.0 m (6'7") in diameter by 2.9 m (9'6") high (including generator), and weighs 136 kg (300 lb). It is specified to generate power in winds of between 4 m/s (9 mph, 7.8kts) and 14 m/s (31 mph, 27.2kts), and can survive winds of 55 m/s
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Another advantage of the helical twist is that the blades generate torque well from upward-slanting airflow. This is negligible in open country, but tall buildings and cliff faces generate a bow wave which directs airflow up and over them. Turbines mounted on high building rooftops or clifftops are
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sides of the turbine. As with a
Darrieus turbine, theoretically, there is no torque on a stationary turbine, due to symmetry of the turbine and of the blades. Starting is achieved by operating the generator as a motor. Torque is caused by a change in the apparent wind direction relative to the
176:(123 mph, 107kts). The rated power at 14 m/s is 2.5 kW (3.35 hp). The AC output from the synchronous generator is rectified to DC, then inverted to AC at 230 V 50 Hz.
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evenly over the entire revolution, thus preventing the destructive pulsations of the straight-bladed giromill (Darrieus turbine). The wind pushes each blade around on both the windward and
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exposed to significantly slanting flow, and the Turby can extract more useful energy from it than a propeller-type turbine can because
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301:"WIND-WORKS: Market, cost, and technical analysis of vertical and horizontal axis wind turbines—A review"
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140:. The three vertical aerofoil blades have a helical twist of 60 degrees, similar to
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235:"Options for micro wind generation: part three - Renewable Energy Focus"
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172:(HAWT) types cannot change their pitch to face the wind directly.
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260:"Turby - sustainable urban wind power from the roof top"
381:"A quiet revolution - wind energy for town and country"
287:"Turby - Sustainable urban wind power from the roof to"
147:The turbine consists of three vertical symmetrical
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325:"WIND-WORKS: Vertical Axis Wind Turbine Revival?"
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16:Brand of vertical-axis Darrieus wind turbine
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109:Learn how and when to remove this message
155:twist. The helical feature spreads the
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47:adding citations to reliable sources
200:List of wind turbine manufacturers
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34:needs additional citations for
188:Delft University of Technology
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186:with research input from the
182:developed the turbine in the
426:Vertical axis wind turbines
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350:"Another Approach to Wind"
125:Turby prototype - TU Delft
142:Gorlov's water turbines
354:Mechanical Engineering
348:Peace, Steven (2004).
264:Delft Outlook, 2005, 2
239:Renewable Energy Focus
205:Distributed generation
151:blades, each having a
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285:Mols, Bennie (2005).
138:Darrieus wind turbine
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397:European Energy Fair
367:10.1115/1.2004-JUN-2
58:"Turby wind turbine"
43:improve this article
329:www.wind-works.org
305:www.wind-works.org
180:Core International
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385:Story about Turby
258:Mols, B. (2005).
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210:Net metering
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41:Please help
36:verification
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411:Turby b.v.
184:Netherlands
334:2021-09-12
310:2023-02-13
244:2021-09-11
221:References
69:newspapers
272:0926-7212
215:Betz' law
420:Category
194:See also
161:leeward
153:helical
149:airfoil
83:scholar
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157:torque
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