This table describes the technical characteristics of wind turbines with horizontal axis on the market based on the type and length of the blades.
|
Power
|
300W
|
600W
|
1KW
|
2KW
|
3KW
|
5KW
|
10KW
|
| blades length (m) |
1,1
|
1,4
|
1,6
|
2
|
2,5
|
3
|
4
|
|
blades diameter (m)
|
2,2
|
2,8
|
3,2
|
4
|
5
|
6
|
8
|
|
number of blades
|
3
|
3
|
3
|
3
|
3
|
3
|
3
|
|
min wind speed (m/s)
|
2,5
|
2,5
|
2,5
|
2,5
|
2,5
|
2,5
|
3
|
|
average wind speed (m/s)
|
7,5
|
7,5
|
7,5
|
9
|
10
|
10
|
10
|
Based on measurements made on our experimental prototype with speed wind 7 m / s, blade length 1 m and ratio x 10, we obtained the following data:
Strong torque : 35 Nm
number of laps : 650
It means obtaining a power of 2.5 kW
Assuming that under load will have a 25% yield we get about 600 w, for these powers at 7 m/s wind speed, the current turbines have a diameter of more than 3 meters.
Furthermore commercial wind turbines ranging in speed to 11.5 m / s while our car is up to speed with wind velocity equal to 7 m/s .
These measurements were not done in a wind tunnel but they are very encouraging.
For more info contact us.