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THERMODYNAMICS - CASE STUDY

    Introduction


Windmill Capturing the
Work Potential in Wind
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Since wind power is a renewable energy source, a small town considering using windmills to meet the extra power needs at peak periods.

What is known:

  • Windmills will be installed at a location where the wind blows steadily at an average velocity of 15 m/s.
  • The windmills will have 5-m-radius rotors.
  • The extra power needs is 1,000 kW.
   
    Question


 

Determine the minimum number of windmills that need to be installed.

     
    Approach


 

A perfect windmill will bring the air to a complete stop (dead state) and capture all the work potential the air processes.