Environmental Engineering Reference
In-Depth Information
Table 1: 10-Turbine analysis group inputs for the value analysis program.
HH = rotor
dia /(0.225*
(rotor
dia^0.3464))
P/A = net rating*
1e6/((rotor
dia^2)*0.7854)
Rotor dia =
59.354*(net
rating^0.47)
RPM = 22.781*
(net
rating^-0.3595)
Tip Spd =
rotor dia
*PI()* RPM/60
Twr base dia =
HH/18.60 **
Given
Net
rating (MW)
Rotor dia
(m)
Tip Spd
(m/s)
HH
(m)
Twr Base OD
(m)
P/A (W/m^2)
RPM
361.4
1.00
59.35
22.78
70.80
64.11
3.45
376.8
2.00
82.21
17.76
76.43
79.33
4.26
386.0
3.00
99.47
15.35
79.94
89.85
4.83
392.8
4.00
113.87
13.84
82.52
98.15
5.28
398.1
5.00
126.46
12.77
84.58
105.11
5.65
402.4
6.00
137.78
11.96
86.30
111.17
5.98
406.2
7.00
148.13
11.32
87.78
116.56
6.27
409.4
8.00
157.73
10.79
89.09
121.44
6.53
412.3
9.00
166.70
10.34
90.25
125.92
6.77
415.0
10.00
175.17
9.96
91.31
130.06
6.99
**18.60 is taken as the standard tower height aspect ratio = GE -1.5sle 80m HH/4.3m base dia.
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