Environmental Engineering Reference
In-Depth Information
Table 3-1. Small-Scale Wind Turbines Developed with U.S. Government Support
[Healy and Dodge 1981]
Manufacturer
Rating
Rotor
Coniguration
Annual
Energy
1
(kWh/y)
Power
Trian
Weight on Tower
(Tower Weight)
(kg)
(kW)
ASI/Pinson
2.0
4.6-m giromill VAWT
1,830
Gearbox
272
3 aluminum blades
Alternator
(680)
2.4-m high
Cyclical pitch
North Wind
2.0
5.0-m upwind HAWT
6,870
Direct-drive
361
3 wood blades
Alternator
(499)
Vertical furling
Enertech
2.0
5.0-m downwind HAWT
8,400
Gearbox
345
2 wood blades
Alternator
(556)
Centrifugal control
Structural
4.0
9.5-m downwind HAWT
22,000
2-Stage Spur GB
726
Composites
3 iberglass/foam blades
Induction
(576)
Industries
Pitch control
generator
North Wind
6.0
9.5-m downwind HAWT
22,100
Direct-drive
477
2 wood blades
Lundel synch.
(1,776)
Passive pitch control
alternator
Tumac
4.0
11.9-m Darrieus VAWT
22,300
Planetary GB
2,365
3 iberglass blades
MSCF induction
(946)
Mech. & aero. brakes
generator
Cantilevered tower
UTRC
8.0
9.45-m downwind HAWT
25,000
Gearbox
839
2 GRP blades
Induction
(1,120)
Flex-beam pitch control
generator
Windworks
8.0
10-m downwind HAWT
30,000
Direct-drive
735
3 aluminum blades
Alternator
(844)
Hydraulic pitch control
Grumman
11.0
10.1-m downwind HAWT
32,000
Gearbox
1,174
3 aluminum blades
Induction
(1,189)
Electric pitch control
generator
UTRC
15.0
14.6-m downwind HAWT
50,000
Gearbox
703
2 iberglass/foam blades
Induction
(544)
Self-twist pitch control
generator
Enertech
15.0
13.4-m downwind HAWT
51,500
Gearbox
431
3 wood blades
Induction
Stall control
generator
Tip brakes
McDonnell
40
17.7-m giromill VAWT
128,400
Gearbox
7,128
3 steel/aluminum blades
Induction
(4,730)
12.8 m high
Cam pitch control
Kaman
40
19.5-m downwind HAWT
134,000
Gearbox
2,766
2 iberglass blades
Induction
(1,814)
Pitch control
generator
1
Predicted for a site with a 5.3-m/s annual-average wind speed
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