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      CommentAuthorTrim
    • CommentTimeJul 20th 2010
     
    I thought so to, perhaps they have a licence?
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      CommentAuthorAngus
    • CommentTimeJul 20th 2010
     
    Posted By: TrimI thought so to, perhaps they have a licence?


    My understanding is that there was an independent, and somewhat prior, Dutch project. That must be it.
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      CommentAuthorTrim
    • CommentTimeMar 26th 2011
     
    • CommentAuthorjoshs
    • CommentTimeMar 26th 2011
     
    The idea of getting power from where fresh water meets brackish is anything but new.
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      CommentAuthorTrim
    • CommentTimeMar 26th 2011
     
    True but both the efficiency and costs are improving all the time.
    All those gigawatts of green clean power going to waste everyday it is such a shame not to utilise it.
    • CommentAuthorjoshs
    • CommentTimeMar 26th 2011
     
    Posted By: TrimTrue but both the efficiency and costs are improving all the time.
    All those gigawatts of green clean power going to waste everyday it is such a shame not to utilise it.
    One could say the same thing about: lightning discharges, solar, or wind, or tidal, or geothermal, etc, etc The earth is awash in real energy. Getting at it economically and safely has been a constant struggle.
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      CommentAuthorTrim
    • CommentTimeMar 26th 2011
     
    Have you any ideas how to utilise lightning for power?
    When Libya is 'free' it will still face the same massive youth unemployment that caused the 'revolution' in the first place the West especially Europe should have a plan ready and the capital raised (from rich Arab countries) to build vast solar energy 'farms' to produce electricity and hydrogen for North Africa and Europe which hopefully could be a win, win for everybody.
    • CommentAuthorjoshs
    • CommentTimeMar 26th 2011
     
    Posted By: TrimHave you any ideas how to utilise lightning for power?
    Yes, but I wouldn't call them very practical or economical at this time. If they were, you'd probably have already seen them in use. Miami would be a potential market.

    When Libya is 'free' it will still face the same massive youth unemployment that caused the 'revolution' in the first place the West especially Europe should have a plan ready and the capital raised (from rich Arab countries) to build vast solar energy 'farms' to produce electricity and hydrogen for North Africa and Europe which hopefully could be a win, win for everybody.
    What to do is vastly complicated. Depending on the actual state of reachable reserves, a point in time comes when the Arab world reverts to the hostile desert it always was. Excluding oil, as of a few years ago, real per capita GDP in the Arab/Persian world had been going down for many years.

    Solar farms sound great until you consider just how destructive the desert sand storms are. That makes big trouble for all forms of concentrated solar, as well as flat plate PV. You have this problem on the Arabian peninsula, North Africa, and Central Asia alike. You might be a lot better off with wind turbines in those locations.
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      CommentAuthorTrim
    • CommentTimeMar 26th 2011
     
    Although it is difficult, stabilising sand is possible. If enough financial backing can be arranged.
    • CommentAuthorjoshs
    • CommentTimeMar 26th 2011
     
    Posted By: TrimAlthough it is difficult, stabilising sand is possible.Ifenough financial backing can be arranged.
    Are you claiming you can build effective barriers against blowing sand in N.A. and the Arabian Peninsula?
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    Sure. Just turn the whole region into a glassy plain of Trinitite. We have the technology, and it would solve a whole lot of ancillary problems as well as the sandstorms.
    • CommentAuthorjoshs
    • CommentTimeMar 26th 2011
     
    Would that solution involve increasing local temperatures with a rather steep gradient?
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      CommentAuthorTrim
    • CommentTimeMar 26th 2011
     
    Unfortunately I can't find the links I wanted about chemically fixing sand together to make a solid surface.

    Here are some other links though.

    http://en.wikipedia.org/wiki/Sand_dune_stabilization

    http://www.answers.com/topic/sand-dune-stabilization

    http://www.greenworldmag.com.au/article.asp?ArticleID=1293

    http://www.informaworld.com/smpp/content~db=all~content=a926910842

    http://www.agriculturesnetwork.org/magazines/global/room-for-farmers/sand-dune-farming

    There are loads more, like I said with financial backing from rich Arab countries it can be done.
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    Posted By: joshsWould that solution involve increasing local temperatures with a rather steep gradient?

    Well, you can't blame me for having a certain... er... hope for the region.
    • CommentAuthorjoshs
    • CommentTimeMar 26th 2011
     
    Posted By: TrimUnfortunately I can't find the links I wanted about chemically fixing sand together to make a solid surface.

    Here are some other links though.

    http://en.wikipedia.org/wiki/Sand_dune_stabilization

    http://www.answers.com/topic/sand-dune-stabilization

    http://www.greenworldmag.com.au/article.asp?ArticleID=1293

    http://www.informaworld.com/smpp/content~db=all~content=a926910842

    http://www.agriculturesnetwork.org/magazines/global/room-for-farmers/sand-dune-farming

    There are loads more, like I said with financial backing from rich Arab countries it can be done.
    You can build all the berms that you want, you still will not stop corrosive blowing sand from destroying optics.
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      CommentAuthorTrim
    • CommentTimeMar 27th 2011
     
    Is a jam jar an optic?

    Why don't you read my link again?

    http://www.physorg.com/news/2011-03-power.html

    Hydrogen can be piped across the Mediterranean or shipped across more efficiently then electricity. And jobs are needed on both sides of the sea.
    • CommentAuthorjoshs
    • CommentTimeMar 27th 2011 edited
     
    Posted By: TrimIs a jam jar an optic?

    Why don't you read my link again?

    http://www.physorg.com/news/2011-03-power.html

    Hydrogen can be piped across the Mediterranean or shipped across more efficiently then electricity. And jobs are needed on both sides of the sea.
    Why don't you learn to think?

    All practical forms of concentrated PV or solar thermal relies on focusing optics. Sand storms destroy those optics. All PV, and Nocera's device rely on a clear line of sight to the sun. Sand storms etch front glass destroying flat panel efficiency and the transmissivity of your jam jars.
    • CommentAuthorLakes
    • CommentTimeMar 27th 2011
     
    Fixing Sand?, just add cement and gravel... Concrete! :)

    Ok, it would a lot of cement powder.... hehe

    Or... build a solar furness to melt the sand... Oh wait, you still need optics to focus..

    Ok, just build a really, really big wind break.... :)
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      CommentAuthorAngus
    • CommentTimeMar 30th 2011
     
    Posted By: TrimPhysorg

    New super fuel water.

    New entropy battery pulls energy from difference in salinity between fresh water and seawater



    Johnny-come-latelies. It was published in 2009 by D. Brogioli of the University of Monza and is being worked on in Holland.

    http://www.physicscentral.com/buzz/blog/index.cfm?postid=8192106608311312838[url]
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      CommentAuthorTrim
    • CommentTimeMar 30th 2011
     
    @Angus

    http://www.physicscentral.com/buzz/blog/index.cfm?postid=8192106608311312838

    You missed out the Norwegians and Italians and the Americans using ammonia as the draw fluid. The recent post I made is not an old one and using osmotic power is improving all the time.