World's Tallest Tower to Produce Energy from Desert

Discussion in 'General Science & Technology' started by TruthSeeker, Mar 17, 2003.

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  1. TruthSeeker Fancy Virtual Reality Monkey Valued Senior Member

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    Found that in another forums...

    "Australia's merciless sunshine is about to be harnessed to produce massive amounts of renewable energy. As part of the process, the tallest man-made structure built, a one-kilometre-tall tower, will rise from the red desert in the south-west of New South Wales.

    EnviroMission Limited, a company listed on the Australian Stock Exchange in August last year, plans to have its first $800 million solar-thermal electricity generator up and running in 2005 and four more operating by the end of 2010.

    Each of these power plants, the world's first large-scale solar thermal power stations, will produce 200 megawatts of electricity, enough to supply 200,000 households.

    The technology is relatively simple, but its execution on this scale will be one of the great engineering feats of recent times. It uses the basic principle that hot air rises. Enough hot air in a column tall enough, can produce phenomenal horsepower.

    Hot air, collected inside a vast, 7500-hectare greenhouse surrounding the base of the tower, will drive turbines set at various levels inside the tower - rather like a jet engine in reverse. The turbines will drive electrical generators, just as the water-driven turbines of the Snowy scheme drive their generators.

    The company says that by the end of this decade it will be able to supply clean, renewable energy to more than one million households, about one-eighth of the present total.

    EnviroMission says that each of its proposed towers would be capable of saving 830,000 tonnes of greenhouse carbon dioxide gas from entering the environment.

    Time magazine gives the project one of its 2002 Best Inventions awards, congratulating its engineer-designer, Professor Jorg Schlaich, a founding partner of Schlaich Bergermann and Partner, the German company that built the Munich Olympic Stadium, the Ting Kau Bridge in Hong Kong and the Montreal Olympic Stadium.

    The principle of the solar tower generator has been tested in a pilot plant built at Manzanares in Spain in 1982 under a joint venture between the German engineering company and the Spanish Government.

    This relatively small 50-kilowatt pilot plant operated successfully for seven years between 1982 and 1989. "

    http://www.enviromission.com.au/index1.htm
     
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  3. Gifted World Wanderer Registered Senior Member

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    LOL.

    Please Register or Log in to view the hidden image!

     
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  5. Gifted World Wanderer Registered Senior Member

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    I should add to that. I wasn't making fun of the idea of the tower, it's just that the whole greenhouse shabang still being here. The tower's actually a good idea, be great if it works. We should build some in the Middle East while we're rebuilding.
     
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  7. JimMik Registered Member

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    saw that a few weeks ago on the science channel.. I thought it was a good idea..

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  8. Charles Fleming Registered Senior Member

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    Why is it so tall though? Surely to gain the most sunlight exposure it should be spread out on the ground? While the higher parts of a tall tower will get more sunlight for longer, because it will have direct contact with the sun for longer by reaching into areas where the earths curve will not block the sun's light, it will have less exposure generally becuase of it's angle compared to the sun when the sun is overhead or 'present'. Im sure they know what they're doing though.
     
  9. Gifted World Wanderer Registered Senior Member

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    TO explain:
     
  10. Stokes Pennwalt Nuke them from orbit. Registered Senior Member

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    Sounds neat in theory, but a pipe dream. Even if it works in that specific location it will never be anything more than a gee-whiz scientific oddity.

    It's contingent power and thus intolerant of many factors (environmental, geographic, in this case). Although I'm happy to see research in this direction it's hardly practical.
     
  11. Gifted World Wanderer Registered Senior Member

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    It's much like geothermal, limited to specific environmental conditions. Besides, in most areas, power compumption peaks at certain times(usually during the day), and so your getting what you need when you need it.
     
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