![]() ![]() ![]() So a 1 meter high&wide rotorrotor at 30kph, or ten m/s, the energy would be 0.5*1.4*10*10*10=700 watts. The energy in the wind is a cubed relationship. ![]() For fifty watts at that wind speed you'd need a rotor 25 times the size, say five meters high and wide. The BETZ limit says you can capture about half, or 2.8watts. The energy available to capture =0.5 × 1.4 × 2*2*2= 5.6 watts. Imagine holding up a 1m square empty frame with 6kph (2m/s) wind running thru it at 1.4kg per cubic meter of air. This is an orthodox wind generator made simply, although it's more difficult than the above one:įorgetting the alternator for a moment, that is a lower wind speed so definitely VAWT territory. With the number of hubs some of us have at home, we could probably run the whole house off the grid with a line of wind generators in the garden? I have a xlite 406 motor, and I am wondering about the best length of PVC tube and the best design to have the optimum speed to convey to the motor.įor example, the PVC tubes could be 1m long or 2m long, and they could be on a rotation diameter of 24" or 28", and I'm not sure how that would affect the speed and power transmitted to the hub motor.Ĭan you advise on the best velocity, catchment area, and circuitry for an ebike motor generator? I am tempted by a vertical axis VAWT made with 2 bike wheels joined together by wind foils made of PVC tubes. I want a 30W+ wind turbine for my friend so she can charge a lead battery away from the grid. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |