Hello, we have 2 curves represent the torque coeff. of 2 turbines, the average of them are -ve values and also we compared other 2 curves at a different condition and the average of a specific curve was +ve and the other was -ve, how can we know the best turbine?
Thanks
Okay dear Mohamed, the problem of the negative torque is not clear, but we are sure that the reference values of length and area are not right. Thank you, I got the answer I want!
This one is easy to answer visually, if you only want positive torque. Look at the distance between the two curves; one of them is usually higher than the other, and it is usually higher by quite a bit. The points where it dips below the other turbine aren't enough to make up for how well it does the rest of the time.
If you had something less visually clear (or need a more numerical, quantifiable answer), you could take a Riemann sum to integrate them both, then compare the result. You can even apply a Trapezoid rule or Simpson's rule if you want to get fancy and accurate.
- Badges
- Science topic