Environmental Engineering Reference
In-Depth Information
Table 14.3 Wind farm configuration: positions (cm)
Topology
Wind turbines
T1
T2
T3
T4
1
(20.32,25.40)
(10.16, 25.40)
(10.16, 96.52)
(20.32, 96.52)
2
(40.64, 15.24)
(66.04, 55.88)
(15.24, 55.88)
(40.64, 96.52)
3
(55.88, 15.24)
(45.72, 35.56)
(35.56, 60.96)
(45.72, 81.28)
4
(55.88, 20.32)
(25.4, 20.32)
(40.64, 55.88)
-
5
(55.88, 15.24)
(45.72, 35.56)
(35.56, 60.96)
(20.32, 15.24)
6
(25.4, 20.32)
(45.72, 35.56)
(40.64, 60.96)
(55.88, 71.12)
wind farm is shown in Fig. 14.27 and Table 14.3 . The rotor velocity and electrical
power generation is measured for each configuration. Tables 14.4 and 14.5 show
the experimental results.
The aerodynamic effects on the wind profile in some cases are strong enough to
completely disrupt the airflow to some turbines (see zeroes in Table 14.5 ). The
most efficient configuration is the second topology in which one turbine is placed
at the front of the configuration, therefore receiving the strongest uninterrupted
airflow. Interestingly, this is the most efficient, despite the fourth turbine being
completely motionless.
Table 14.4 Wind farm configuration: rotor speed (rpm)
Wind turbines
Topology
T1
T2
T3
T4
1
207.89
126.34
44.31
52.26
2
947.68
101.25
56.73
0
3
236.50
60.99
84.17
3.08
4
275.04
353.55
59.43
0
5
272.48
256.22
34.81
151.59
6
289.08
623.25
0
59.62
Table 14.5 Wind farm configuration: generated power (mW)
Topology
Wind turbines
Total WF
T1
T2
T3
T4
1
81.84
49.74
17.44
20.57
169.61
2
373.10
39.86
22.34
0
435.30
3
93.11
24.01
33.14
1.21
151.48
4
108.28
139.19
23.40
0
270.87
5
107.28
100.87
13.71
59.68
281.53
6
113.81
245.37
0
23.47
382.66
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