Wind

Wind

W per person ?

Population density for Great Britain: 250 people / km2

in kWh/day: ?

Population density for Great Britain: 250 people / km2

in kWh/day: 200 kWh/day

Population density for Great Britain: 250 people / km2

Be realistic and assume that only 10% of the land in Great Britain

Be realistic and assume that only 10% of the land in Great Britain

If we want wind power to truly make a difference, the wind farms must cover a very large area.

Importance of Averaging

Estimate potential wind energy production in Turkey.

Estimate potential wind energy production in Turkey.

Total area: 814.578 km2

Total Population: 80 million

Estimate potential wind energy production in Turkey.

Total area: 814.578 km2

Total Population: 80 million

= 2 W/m2 x 10000 m2/person = 20 kW/person

= 480 kWh/day-person

http://www.ecoenerji.net/haber_detay.asp?haberID=16

http://www.alternatifenerji.de/ruzgar.htm

The Physics of Wind Power

The Physics of Wind Power

The windmill slows the air down quite a lot, but it has to leave the air with some kinetic energy, otherwise that slowed-down air would get in the way. If the departing wind speed is one third of the arriving wind speed, the power extracted is 16/27 of the total power in the wind. 16/27 is 0.59. In practice let’s guess that a windmill might be 50% efficient.

Variation of wind speed with height

AC Generatorhttp://www.youtube.com/watch?v=nRMZ3K2pzcE

Components of a wind Turbinehttp://www.youtube.com/watch?v=LNXTm7aHvWc&feature=fvwrel

Winds of Changehttps://ieeetv.ieee.org/player/html/viewer?dl=#winds-of-change-full-documentary