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Wind energy conversion is a spellbinding field to study, if
only because its past has been so checkered and its exact future is so vague.
But unlike many of these other industries, wind
energy has been around for thousands of years and it's a technology that has been
reinvented many times.
LET’S GO ON A QUICK JOURNEY
HISTORYOF
WIND POWER
500 B.C.
500 B.C.
The development of sail boats led directly to the development of the first recorded
wind powered device in Persia (the Middle
East)…
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Sails were used to drive a mill stone for the grinding of grain. These were seen first in Persia,
500 BC.
500 B.C.
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Some versions were also used to pump water for
drinking water and for simple
irrigation of agricultural land.
500 B.C.
1000 A.D.
1000 A.D.
1000 A.D.
1000 A.D.
1000 A.D.
1300 - 1850 A.D.
This type of windmill design became familiar
in Europe between 1300 and 1850 AD.
1300 – 1850 A.D.
The windmill design is much more like the
traditional windmills we see
even today.
1300 – 1850 A.D.
It was designed particularly for the large scale
milling of grain.
1300 – 1850 A.D.
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19th Century
In the USA wind powered devices
like the one shown in the illustration
were developed to pump water.
19th Century
These were especially functional
in bone-dry areas where deep wells were essential to
find drinking water
19th Century
In the 1800s, the Halladay windmill
was very trendy with thousands made.
19th Century
This basic design was reliable and was
used even up to the 1940s.
19th Century
A large version of this design had
rotors (propellers) of 18 meters in length.
19th Century
20th Century (USA)
20th Century (USA)
First Use of Wind for Large-Scale
Generation of Electricity
20th Century (USA)
With the development of electrical power,
scientists and technologists developed
ways of producing electricity through the use of wind generators
(also known as turbines).
20th Century (USA)
In the 1930s one of the largest experimental machines, called the
Palmer-Putman machine was first used.
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20th Century (USA)
This was capable of producing 1.25
megawatts of electricity.
20th Century (USA)
However, due to the materials available at the time, its effectiveness was reduced to a great extent
and made the machine hard to maintain.
20th Century (USA)
It had 50 meter rotors which were large compared to
other designs.
20th Century (Denmark)
20th Century (Denmark)
20th Century (Denmark)
20th Century (Denmark)
20th Century (Denmark)
20th Century (Denmark)
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20th Century (Denmark)
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20th Century (Denmark)
European Development
European Development
European Development
European Development
Due mainly to the fast rise in oil prices throughout the
late 1970s and 1980s,
AND
the fact that using fossil fuels to produce electricity
causes pollution,
which can damage the environment and cause
global warming,
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The development of wind generators (turbines)…
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ACCELERATED!!!
THE RISE OF MODERN
WIND TURBINES
Modern wind turbine generators are robust, sophisticated high-tech machines designed to convert the power of the wind into electricity.
They generally consist of a rotor with three blades.
A nacelle, which typically contains a gear box, generator,
brake, yaw motor, and yaw drive.
And an anemometer for measuring
wind speed.
This is how it looks like …
Now, here are some
Modern Wind TurbineDESIGNS
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Vertical AxisWIND TURBINES
Horizontal AxisWIND TURBINES
Small HomeWIND TURBINES
I hope you’ve enjoyed our quick journey…
Resources:http://www.telosnet.com/wind/future.html
http://www.enotes.com/topic/History_of_wind_power#Year-by-year
http://guidedtour.windpower.org/en/pictures/multimeg.htm
http://en.wikipedia.org/wiki/History_of_wind_power#Antiquity
http://windturbinesllc.blogspot.com/2011/02/history-of-wind-turbines.htm l
http://www.guardian.co.uk/environment/2008/oct/17/wind-power-renewable-energy
http://www.top-alternative-energy-sources.com/history-of-wind-power.html
http://en.wikipedia.org/wiki/Wind_turbine
http://www.britannica.com/blogs/2010/09/wind-power-and-the-modern-wind-turbine-picture-essay-of-the-day/
http://www.horizonwind.com/about/landowners/modernwindturbine.aspx
http://www.fotopedia.com/items/flickr-466229969
http://www.flickr.com/photos/jasonpratt/2271052674/
