Wind mill

• Basic requsirments to run a wind millAtmospheric pressure: to run a wind mill

properly for energy purpose the atm pressure is 8.5bar.

Height: after every 10 meters wind mills efficiency incresed with 100%.

It should not be a poor remake of an existing design

Wind mill design

• Design of blades: it should be make airfoil, elongated and static.

• Blade type: naca 44, naca 63.• The design shuold be able to face all weather

conditions.• Gear box, shafts & etc all component are well

maintained or connected.• Airfoil Design – “Design from the Side”• Planform – “Design from the Top”• Aspect Ratio – “Squat or Elongated”• Twist

Challenges for running a wind milll

• It is unpredictable & intermittent.

• Wind farms occupy large area for producing more power

• Wind turbine can impose adverse impact on envirment

material• • cork (at least 2 cm in diameter)• • DC voltmeter• • stiff ruler or meter stick or other sturdy wood strip• • protractor• • 50 cm of electrical wire with alligator clips• • rubber bands• • scotch tape• • paper clips• • wire cutters• • scissors• • pieces of cardboard• • cork borer• • goggles

Material

Aluminum sheets: 5 to 7 kg Hub Main shaft Main bearing Main clamping unit Gear box Generator: . Asynchrone generator. Doublegevoed

synchron generator. Synchrone generator Worm gear Multiport worm gear case

Model of wind mill

How Much Power in Moving Air?

• Power is Energy / Time– How much Energy in Moving Air– Kinetic Energy - ½ mv2– Power = Energy / Time = .74 Joules /.16 s =

4.6 Watts

Thanks for your patience….