A three-bladed wind turbine with a radius of 3 meters receives wind at 8 m / s.
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Question:
- A three-bladed wind turbine with a radius of 3 meters receives wind at 8 m / s. The turning speed of the turbine is 78 rpm.
- (a) What is the specific speed, l at which the wind turbine is turning?
- (b) If we want to generate as much energy as possible, is this turbine operating optimally?
- (c) What is the relative speed of the wind over the turbine at the end of the blade?
- (d) If you want the angle of attack at this point (end of the blade) to be 15º, how much should the angle of clearance be worth at this point?
- (e) If the ambient pressure is 80 kPa and the air temperature is 10 C. How much power would this turbine be producing? (
- f) Regarding the previous part, what percentage of the Betz power does the power calculated in the previous part represent? (Raire = 0.287 kJ / kg.K)
Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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