wind energy Flashcards
0
Q
calculation of wind power
A
Wind power= 1/2 Rho A V cubed
1
Q
how does a wind turbine work?
A
inflow of wind
activates motor and rotor
this makes mainshaft and gearbox spin
producing energy
2
Q
what is the formula for area of circle swept by motor?
A
A=pi R squared
3
Q
what are the possible orientations for wind turbines?
A
vertical axis with 2 blades
horozontal axis w 3 blades (more stable)
4
Q
what are the blades mad eof?
A
wood (planks or laminates or veneer or composites)
steel (heavy and expensive)
aluminum
5
Q
advantages of wind power?
A
renewable resource
no emissions or green house gases
scalable
6
Q
disadvantages of wind power
A
need wind wind patterns change noise pollution interference w bird migration may require some fossil fuel for operation
