What forms of energy and energy transformations are involved in wind turbines?

Hey
Im doing a research about wind turbines and how it generates energy using wind power
I need to know the energy conversions involved in the process of the wind turbines.
Im not quite sure on what forms of energy are involved

Here are all of the forms of energy:
thermal, electrical, radiant, nuclear potential, gravitation potential, kinetic, elastic potential, sound, and chemical potential.

I also need to know the wind turbines energy transformation equation.
For example a microwave oven,
electrical energy -> radiant energy -> thermal energy

Please help
help will be greatly appreciated and rewarded with points ofc

The mass and velocity of the air give it KE
The wind turbine blades convert the KE to ME (mechanical energy; the one you left out of your list of ‘all’ the forms of energy…!)
The generator converts the ME to electrical energy, the most useful grade of energy.

At each conversion point, some of the input energy is not used, causing the output energy to be less than the input. For ex: The wind downstream of the blades is slowed, but not stopped. Ergo, it still has some of its KE and the blades have picked up the rest as ME. As I recall, the maximum efficiency of any blade system is about 36%. The ME to EE step is about 90% efficient. Of course, all the efficiencies multiply, so you come out with less than 36%, but considering that the original wind energy is created directly from solar heating of land masses (ie, free), things don’t look so gloomy…….

2 Responses to “What forms of energy and energy transformations are involved in wind turbines?”

1. Steve Says:
   July 21st, 2010 at 12:42 am

   The mass and velocity of the air give it KE
   The wind turbine blades convert the KE to ME (mechanical energy; the one you left out of your list of ‘all’ the forms of energy…!)
   The generator converts the ME to electrical energy, the most useful grade of energy.

   At each conversion point, some of the input energy is not used, causing the output energy to be less than the input. For ex: The wind downstream of the blades is slowed, but not stopped. Ergo, it still has some of its KE and the blades have picked up the rest as ME. As I recall, the maximum efficiency of any blade system is about 36%. The ME to EE step is about 90% efficient. Of course, all the efficiencies multiply, so you come out with less than 36%, but considering that the original wind energy is created directly from solar heating of land masses (ie, free), things don’t look so gloomy…….
   References :

2. Teresa Says:
   July 21st, 2010 at 1:10 am

   In simple answer to your question is that

   -it involves kinetic energy using the first law of thermodynamics
   "The first law of thermodynamics tells us the energy out of a wind turbine has to equal the energy in. The energy in is the kinetic energy from the wind’s velocity and air density. It is not possible to convert all of the wind’s kinetic energy into mechanical energy. Some energy must remain in the wind. The "energy out" is the energy converted by the turbine blades into mechanical energy, plus whatever energy is left in the air after it passes through the turbine rotors"

   the whole detail below
   References :
   http://www.flyingturtle.org/energy/wind-enrgy.html

   http://www.greenearthcommunity.com

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