Review of Experimental Approaches for the Analysis of …
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Table 2 Comparative data of maximum power coefficient for various VAWT
Authors
Wind tunnel
dimension
(m × m)
Test section
type
Dimension of
rotor of VAWT
(H × D) (m ×
m)
Maximum C p TSR
Huda et al. [21]
0.5 (circular
open jet)
Open type 0.185 × 0.32
0.17
0.71
0.21
(deflector)
0.72
Kamoji et al. [10]
0.4 × 0.4
Open type 208 × 208
0.161 (1
stage)
0.78
226 × 113
0.14 (2 stage) 0.83
289.9 × 96.6
0.132 (3
stage)
0.77
Bowden and
McAleese [24]
0.76 (open jet) Open type 0.164 × 0.162
0.15
0.72
Alexander and
Holownia [25]
2.4 × 1.2
Closed type 0.46 × 0.19
0.147
0.52
0.243 (with
shielding)
0.72
Ogawa and Yoshida
[26]
0.8 × 0.6
Open type 0.175 × 0.3
0.17
0.86
0.212 (with
deflector)
0.7
Bergeles and
Athanassiadis [15]
3.5 × 2.5
Closed type 0.7 × 1.4
0.128
0.7
Fujisawa and Gotoh
[17]
(Open circuit) Open type 0.32 × 0.32
0.17
0.9
Baird and Pender
[27]
0.305 × 0.305 Closed type 0.076 × 0.06
0.185
0.78
Jeon et al. [28]
1 × 1.5
Open type 0.35 × 0.7
0.16
0.8
Hayashi et al. [29] 1.5 × 1.5
Open type 0.23 × 0.33
0.175 (1
stage)
0.75
0.074 × 0.184
0.13 (3 stage)
Dobrev and
Massouh [11]
1.35 × 1.65
Closed type 0.2 × 0.22
0.18
0.8
Alexander and
Holownia [25]
1.20 × 1.20
Closed type 0.19 m chord
and 0.38 m
length from 0.46
to 0.91 m
0.102
0.42
Kamoji et al. [10]
0.4 × 0.4
Open jet
Single stage
0.208 × 0.208
Single stage
16.1
0.78
Two stage
0.226 × 0.226
0.131 × 0.262
Two stage
13.7
0.72
(continued)