On the wrong view of fan type mixing

The wrong view of fan type mixing (Part 1)
Before the calculation, we do the following settings (the following settings are basically reasonable, but do not be too seriously entangled, after all, to put all units on the same standard for comparison):
1, based on the 1.5MW-82 model, all the different capacity (2MW, 3MW),...... Units of the unit sweep peak area are the same;
2, the rated speed of the tip speed are 85m/s;
3, the transmission chain in accordance with the form of doubly fed machine assumptions, the generator speed range of 0.7n0 ~ 1.17n0 (N0 synchronous generator speed);
4, the Cp- lambda curves of the blades are the same, the optimal tip speed ratio is 9, the maximum Cp is about 0.49;
5, mechanical efficiency and electrical efficiency of 97% and 95%, respectively, since the power consumption accounted for the rated capacity of 2% (constant value);
6, according to the standard IEC class III wind power generation calculation, the reduction coefficient is 70%.