Wind electric generator dimensions |
Safir - Simpson Tropical Cyclones Scale |
Windmills field ( n = 23) |
|||||||
mid 90' costs actualized 2009 |
category |
wind max speed km/hour |
minimum pressure |
tempest:/ storm tide |
relative cost dammageM$ |
average wind turbine |
|||
40 |
rotor diameter |
1 |
119 |
> 980 |
1 - 1.7 |
1 |
turbine |
kW |
900 |
40 |
tower height |
2 |
154 |
* - 965 |
* - 2.6 |
10 |
production |
GWh/year |
2.74 |
500 |
nominal power |
3 |
178 |
* - 945 |
* - 3.8 |
50 |
turbine & erec. |
US$2009 |
717391 |
50 |
total weight |
4 |
210 |
* - 920 |
* - 5.6 |
250 |
civil engineering |
US$2009 |
130435 |
5178618 |
cost estimated (US$2009) |
5 |
> 249 |
< 920 |
> 5.6 |
500 |
electric engineering |
US$2009 |
117391 |
1450 |
produc/year MWh |
|
|
|
|
|
network connection |
US$2009 |
78261 |
40 |
weight/surface |
|
|
|
|
|
total investment |
US$2009 |
1043478 |
1.16 |
produc/ surface covered MWh |
|
|
|
|
|
|
|
|
West Africa wind speed time average proportion distribution (years 50') |
Beaufort Scale |
||||||||
|
4 - 5 |
5 - 6 |
6 - 7m/sec |
> 7m/sec |
n° |
phenomenas |
m/sec |
km/h |
|
Mauritania |
0.125 |
0.13 |
0.1 |
0.135 |
0 |
Calm, smoke rises vertically |
0.2 |
< 1 |
|
Senegal |
0.14 |
0.15 |
0.06 |
0.04 |
1 |
Wind inclines smoke but does not turn weather waves |
0.3 to 1.5 |
1 to 5 |
|
Mali |
0.12 |
0.95 |
0.06 |
0.055 |
2 |
Wind is felt on the face, leaves rustles weather vannes obey to wind |
. to 3.3 |
6 to 11 |
|
BurkinaFaso |
0.09 |
0.055 |
0.025 |
0.015 |
3 |
Leaves & small branches in continuous movment. Wind agitates light flag |
. to 5.4 |
12 to 19 |
|
Niger |
0.15 |
0.08 |
0.05 |
0.04 |
4 |
Wind lifts dust and paper sheets, small branches are stirring |
. to 7.9 |
20 to 28 |
|
windmills |
|
|
5 |
Small leafy trees begin to balance, crest wavelets form on pounds |
. to 10.7 |
29 to 38 |
|||
|
Rotor height meters |
Recovered power Kw |
|
|
6 |
Large branches move, electric wires vibrates, difficult to use umbrella |
. to 13.8 |
39 to 49 |
|
Open groundfield |
5 |
5 |
|
|
7 |
Trees are fully agitated, unpleasant to walk face to wind |
. to 17.1 |
50 to 61 |
|
Open groundfield |
10 |
10 |
|
|
8 |
Small branches break, difficult to walk |
. to 20.7 |
62 to 74 |
|
Open groundfield |
20 |
18 |
|
|
9 |
High material damages occur |
. to 24.4 |
75 to 88 |
|
Open sea |
10 |
40 |
|
|
10 |
Rarely inland, trees uprooted, considerable material damages |
To 28.4 |
89 to 102 |
|
Open sea |
10 |
1.4 |
|
|
|
|
|
|
|