How does one know for sure that it is the optimum design?
A. According to a theory by Betz, it is optimum if slows the wind down to 1/3 of its original speed eventually. Half of the decelaration occurs before the rotor and half after the rotor. So wind speed at rotor is 2/3 of original wind speed. My software always computes for this optimum. My software then calculates the mechanical power available at the shaft so you can see what you get and you can try alternatives if you think you can get more or get a better match to your generator. You could measure the windspeed at the rotor to check that it is 2/3 of the original free windspeed. Note also that you will need to present an electrical load that will maintain the rotor speed at the design tip speed ratio if you really want optimum energy capture.
Related Questions
- We re working on a home with a very complicated roof structure. What can I do in the design stage to be sure the roof functions as well as possible?
- Can Brown and Associates, Inc. assist me in creating a Strategic Program Design for optimum performance from staff?
- How does one know for sure that it is the optimum design?
