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Harvesting energy from pipelines

  1. Feb 13, 2017 #1
    why cant we go for harvesting hydropower from the pipelines, eventhough the flow is not continous we can generate and store it,,, and can use it for small devices..
     
  2. jcsd
  3. Feb 13, 2017 #2

    berkeman

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    Staff: Mentor

    Welcome to the PF.

    And where would that extra energy come from that you are extracting along the way in the pipelines...? :smile:
     
  4. Feb 13, 2017 #3
    its the potential energy stored in the tank...
     
  5. Feb 13, 2017 #4

    berkeman

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    Potential energy is only used for long distance slow liquid transfer (like water aqueducts transferring water long distances). Most pipelines are pumped, so you would need to add extra pumping power at the source to give you any excess energy to extract along the way...

    http://www.prohim.com.tr/files/cache/431b5a2c9e79b65a44a1957295942aec_f857.jpg [Broken]
    http://www.prohim.com.tr/files/cache/431b5a2c9e79b65a44a1957295942aec_f857.jpg [Broken]
     
    Last edited by a moderator: May 8, 2017
  6. Feb 13, 2017 #5
    potential energy is not only used for long distance slow fluid transfer, what in the case of a dam.. there the fluid at rest have a potential energy and that one is routed to harnish electricity.... but there we get a continous high velocity jet of stream due to the high water head, but in case of a tank head is low, so we will go for small application devices
     
    Last edited by a moderator: May 8, 2017
  7. Feb 13, 2017 #6

    berkeman

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    After the dam water has fallen down through the hydroelectric generators, it has lost most its potential energy. The water flow out of hydroelectric dam facilities has very little energy left, and just flows slowly down the river, or is pumped to local water utilities.

    There is some energy that can be harvested from tides, and we've had a few threads about that here at the PF. You can find more threads about energy harvesting by doing a PF search. :smile:
     
    Last edited: Feb 13, 2017
  8. Feb 13, 2017 #7
    ok sir... thank you for your wordz........
     
  9. Feb 13, 2017 #8

    OmCheeto

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    Gold Member
    2016 Award

    You can. [ref]
    "small devices"?
    Is it safe to assume you were thinking of adding a hydroelectric generator to your showerhead?

    hmmm..... Were you of member of Michio Kaku's forum about 10 years ago?

    [someone] 05-12-2007 09:01 AM
    Generating Electricity from supplied water
    Water is being pumped into our homes constantly...
    [OmCheeto]; Check for leaks!

    Always the comedian........:rolleyes:
     
  10. Feb 13, 2017 #9

    russ_watters

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    There are cases where harvesting pumping energy would be considered acceptable, such as for a self-powered flow meter (aren't they all?), but I'm not sure that is what the OP had in mind...
     
  11. Feb 17, 2017 #10

    CWatters

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    If you extract energy half way down a pipe there will be less energy available at the end of the pipe. Otherwise I see no problem with the OP.
     
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