wind turbines Custom jpg
150px x 200px | 7.10kB

[source page]

Spearville Wind Farm Starting To Generate Power

Sec. salazar demands cape wind ultimatum - Barack Obama Videos

admin

Fri, 15 Jan 2010 01:31:06 GM

Interior Secretary Ken Salazar met today with groups from all sides of the controversial Cape . Wind. project. Salazar said the arguments were passionate, and.

What forms of energy and energy transformations are involved in wind turbines?
Q. 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
Asked by Justin W.// - Sun Dec 6 17:36:12 2009 - - 2 Answers - 0 Comments

A. 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… [cont.]
Answered by Steve - Sun Dec 6 17:54:55 2009