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Showing posts with label Windt Turbine design. Show all posts
Showing posts with label Windt Turbine design. Show all posts

Wednesday, July 10, 2013

Parameters of wind turbines which affect annual energy output (AEO)

Rated Output Power (ROP):-

rotor diameter changes the ROP.

RPM :- larger dia reduces rotor RPM. 

Capacity Factor ( CF):- higher capacity factor means higher AEO, but practically CF never goes beyond 40

Q) Does wind speed affect AEO?

Surprisingly the answer is NO !
This is because AEO is calculated upon average wind speed, which is already accounted for in CF.

Maximum Tip Speed that can be obtained is 70-80 m/s.

Cut in wind speed for most of the turbines is 5 m/s and cut out is 25 m/s 

O & M costs can be taken as 8 % of annual gross revenue.