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MindTap Engineering for Dunlap's Sustainable Energy, SI Edition, 2nd Edition [Instant Access], 1 term (6 months)
2nd Edition
ISBN: 9781337551755
Author: DUNLAP
Publisher: Cengage Learning US
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Chapter 10, Problem 3P
To determine
Find the efficiency.
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A large commercial wind turbine has a blade span of 100 m and tower (4 m diameter uniform) height of 150 m high (hub height above the ground). If the combined turbine-generator efficiency of 40%, wind speed of 15 km/h and the air density 1.2 kg/m3 (disregard frictional effects on the mast) determine the following:a) Electrical power generated by the turbine (in MW).b) Total horizontal force (kN) exerted by the wind on the supporting mast of the turbine and the distance (m) of this resultant force from the ground. Assume uniform tower diameter throughout the height.c) What will be the electrical power generated (in MW) when the wind speed is 30 km/h
1)
How much power can a HRX Turbine produce daily?
Specifications:
52 meter blades
• Average wind speed at 14-16 knots
Air density is 1.23
Calculate the power available in the wind and the
rotor power when the blade length for the turbine is
given 42 m and the wind speed is 11 m/s. The
power coefficient of blades is 0.4, generator
efficiency is 85 % while gear box efficiency is 0.8, air
density is 1.225 kg/m³.
Power available in the wind
Power available in the rotor
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MindTap Engineering for Dunlap's Sustainable Energy, SI Edition, 2nd Edition [Instant Access], 1 term (6 months)
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