18-05-2010, 01:24 PM
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Presented by
Madesh V
1JS06ME020
JSSATE
WHAT ARE THE TOPICS THAT ARE DISCUSSED
Need for Sky Wind Power.
What is FEGâ„¢s
Comparison with other technologies
Disadvantages of FEGâ„¢S
Conclusion.
WHAT IS WIND HOW MUCH ENERGY IS PRODUCED ANNUALLY
Wind is air set in motion caused by the uneven heating of the earthâ„¢s surface by the sun..
Nature generates about 1.67×105 KWh of wind annually.
Need for Sky Wind Power
Electricity.
Fossil fuels.
Global warming.
Mathematically
The standard formula for calculating energy to be expected from a wind turbine expressed in metric terms is:
KWh = (1/2)()(V3)(A)(E)(H) where,
is the density of air
V3 is the cube of the wind velocity
"A" is the area swept by the turbine rotors
E is the efficiency of capturing the kinetic energy.
H is the number of hours for which the power was captured.
Capacity factor
What is capacity factor
Wind industries take into account the capacity factors, and there was a remarkable increase in the capacity factor as altitude increases.
Ground based wind generators have capacity factors ranging from 19.2% to 35%, whereas sky generators CF range from 70% to 90%
Capacity factors around the world
Wind distribution over the earth surface
Robertâ„¢s FEG
Robertâ„¢s rotorcraft
Why Robertâ„¢s "Flying Electric Generator
Working of Robertâ„¢s Flying Electric Generator.
Other tethered energy capture methods :
Working of MARS.
Is it better than Robertâ„¢s Flying Electric Generator
Kite Wind Generator
Working of Kite Wind Generator.
Is it better than Robertâ„¢s Flying Electric Generator.
Disadvantages of FEGâ„¢s
Air traffic controlling.
Lightning.
Isolated place required.
Wind electricity v/s biofuels
Wind energy can be used to charge hybrid vehicles, thereby reducing use of biofuels.
wind Electricity becomes a dispatchable source of energy not just to supplement fossil fuel, but also to the present wind utility industry and hydroelectric industry.
Worldâ„¢s least expensive energy
A careful study made using an Flying
Electric Generator(FEG) design rated at
2.81 megawatts flying at a typical U.S
site with an 80 percent capacity factor
projects a life cycle cost per kilowatt hour
at 1.4 cents.
Conclusions :
Wind energy at higher altitudes can generate more power than that of ground based generators.
Tackle worldâ„¢s biggest problem of Global Warming.
It is a natural resource which is renewable.
Sky Wind Power Generation is a effective tool to handle the energy crisis
References :
R K Rajput, Power Plant Engineering 2003 edition
R K Hegde, Energy Engineering 2008 edition
NOAA- National Oceanic and Atmospheric Administration, official website
Robertâ„¢s Flying Electric Generators book vol 2, 2002 edition
Wikipedia.com
