Electric desalination

Discussion in 'Boat Design' started by mtumut, Sep 3, 2009.

  1. mtumut
    Joined: Mar 2005
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    mtumut Junior Member

    I am researching ways to desalinate sea water at sea with electric. I am not good at this subject but this could be electrolysis may be.
    Please share with me your knowledge.
    It must be adapted to 1 meter boat for Istanbul to Chile voyage , 1 liter daily.

    Thank you ,

    Mustafa Umut Sarac

    Istanbul
     
  2. apex1

    apex1 Guest

    Mustafa,
    it is spoken like Chile, but you write it "Sile"! And you can go there by Bus, no boat needed!
     
  3. marshmat
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    marshmat Senior Member

    One litre a day is not much to go on. Are you sure you have this thought out in sufficient detail?
    A reverse osmosis watermaker (pretty much the only type commonly seen on pleasure craft) will run you a few thousand dollars. I've never seen any cheaper systems that look like they'd actually work for very long (ignoring, for the moment, the little hand-pumped emergency units used for life rafts).
     
  4. apex1

    apex1 Guest

  5. hoytedow
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    hoytedow Old Woodbutcher

    mtumut, Why not a solar desalinator? No electricity needed, just a collector for condensation of evaporated sea water.
     
  6. hoytedow
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    hoytedow Old Woodbutcher

    P.S., Isn't 1 meter a little short?
     
  7. mtumut
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    mtumut Junior Member

    There will be no sun where I am going only grey clouds I think. I will be at South Atlantic at the future exactly. I had been read a article about using aluminium plates and some other metals as anode and cathode.
    It was saying it was possible to produce water.
    OK. Let s be clear.
    I dont know but which metals are suitable to electrolysis the seawater ?
    Is it possible to clean the metals from collecting salt and other metals ?
    How much electricity does it need to produce 1 liters of water ?
    I can buy a Survivor 06 but I cant trust it. I need to find a way to produce my electric and water and food by myself with rock solid way.
    I am searching for non moving parts technologies.
    1 meter boat is little bit short but I will sit diagonal , it will make 125 , leg lenght.

    Mustafa Umut Sarac
     
  8. marshmat
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    marshmat Senior Member

    So it really is 1 m, I thought for a moment there was a typo....
    Electrolyzing seawater does not produce fresh water. It produces chlorine gas, some hydrogen gas, a little bit of molecular oxygen and a bunch of sodium and calcium oxides suspended in a slightly less salty seawater.
    Where would you get electricity on such a boat, anyway? It doesn't sound like there's enough room for a person and food, let alone batteries.
     
  9. mtumut
    Joined: Mar 2005
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    mtumut Junior Member

    3 square meters of piezo electric film costs 200 dollars. I am thinking to cover the entire boat with it and produce electricity with wind wave pressure.
    There will be no battery but a chinese generator at the keel. I am thinking to cover the sail with piezo film also with one side flexible solar cell . I think kynar is lot cheaper at china , many many times cheaper. I will have a wind generator also. I will build the wind generator by myself.
    When I started to research these , I have had no money. Now I have money but I stucked in to build cheapest.
    May be I first visit Ukranian Docks and Russia with my boat at Black Sea. May be I climb the Danube to North Sea.

    Mustafa Umut sarac
     
  10. mtumut
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    mtumut Junior Member

    Is it possible to filter these oxides ? I watched a tv show about clay filters ?
     
  11. CDK
    Joined: Aug 2007
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    CDK retired engineer

    I guess this is the latest version of Banana Split, but I can't figure out where the camera might possibly be.
     
  12. hoytedow
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    hoytedow Old Woodbutcher

    Wouldn't a teakettle, a condensation coil and a catch basin be simpler? Put it on a stove and that's all.
     
  13. hoytedow
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    hoytedow Old Woodbutcher

    Mustafa,
    So, where do we send the sympathy cards when this seemingly overloaded small boat flips? Minimum daily water intake is closer to 4 liters. I worry for your safety.
     
  14. FAST FRED
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    FAST FRED Senior Member

    There are survival style reverse osmosis setups where YOU pump and some water is filtered to drinkable.

    Might be more reliable than a home brew electric gadget that still needs to be invented.

    FF
     

  15. rwatson
    Joined: Aug 2007
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    rwatson Senior Member

    Oh no - this guy again! he reels us in every time.

    Lets all send him ten dollars so he can escape whatever hell hole he is living in in a bit more style than a 1 metre coffin.
     
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