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Problem-Based Learning Can a wind turbine economically and sufficiently generate
electricity for a village on the Hopi Indian Reservation? Exploration Kit
DC motor (1.5-3.0 V) Wire leads with alligator clips Propeller AA Battery (1.5 V) Light Bulb (2.33 V, 270 mA) Multimeter
Wind speed data from the Hopi site
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
Wind Speed, meters/sec
Pro
babi
lity
Matching the Wind Turbine to the site
0.0%
1.0%
2.0%
3.0%
4.0%
5.0%
6.0%
7.0%
8.0%
9.0%
10.0%
11.0%
12.0%
13.0%
14.0%
15.0%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Wind Speed (m/sec)
Pro
babi
lity
(%)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Pow
er/R
ated
Pow
er
Wind Speed Distribution
Siemons 2.4 MW
Vestas V52 850 kW
Vestas V-82 2 speed
GE 1.5 MW SLE
Suzlon 950 kW