For whoever wanted a portable wind turbine

Discussion in 'UK DIY' started by PeterC, Apr 20, 2012.

  1. PeterC

    PeterC Guest

    PeterC, Apr 20, 2012
    #1
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  2. PeterC

    damduck-egg Guest

    Some may remember Laser 558 ,a shipborne radio station off Essex in
    the early 1980's. Their attempt to hoist an antenna using helium
    balloons was spectacularly unsuccessful.Depending which account you
    read the balloons ended up on the continent or wrapped around a
    traffic bollard in Colchester.


    G.Harman
     
    damduck-egg, Apr 20, 2012
    #2
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  3. "more than twice the power as what is generated at a "

    They cant do engineering and they cant wrote proper English either.

    Or avoid being extremely hazardous to air traffic,.

    I am thinking that they are all on Prozac, these Greens. Or largactyl.
     
    The Natural Philosopher, Apr 20, 2012
    #3
  4. Its the same thing these days with the EU being what it is.
     
    The Natural Philosopher, Apr 20, 2012
    #4
  5. PeterC

    dennis@home Guest

    Air ships?
    Now there is a thought, by powering some of the turbines you could power an
    airship and reduce the need for engines on the airship. that makes them even
    greener as they can use nuclear power.
     
    dennis@home, Apr 20, 2012
    #5
  6. Nursey - he's slipping back into total incoherence..up the sedative please!
     
    The Natural Philosopher, Apr 20, 2012
    #6
  7. PeterC

    dennis@home Guest

    Why?
    Where does the nuclear energy go if its a perpetual motion machine?
    The Americans and the Russians both flew planes with working reactors in
    them.
    They never did get the engines working AFAIK.
     
    dennis@home, Apr 20, 2012
    #7
  8. actually odd as it sounds it is possible to mount a wind turbine on a
    car and use the electricity to drive it dead into the wind...

    they key is the loss of kinetic energy of the wind relative to the
    ground and the gain of kinetic energy of the car with respect to the ground.

    Its not particularly efficient, but unlike most renewable energy claims,
    it doesnt contravene the laws of Physics...

    again its not impossible: the bigger problem is that you tend to leave a
    radioactive contrail behind you..

    But like many many engineering ideas what is possible and what is
    economic efficient and cheap are several green miles apart..
     
    The Natural Philosopher, Apr 20, 2012
    #8
  9. The problem with airships - especially helium airships - is simple. The
    size of structure needed to contain enough gas to lift a reasonable
    weight rapidly becomes the reasonable weight that you can lift.

    In short unless you can find a material with ten to twenty times better
    strength to weight that carbon fibre and titanium, you are on a hiding
    to nothing.

    A better answer to long duration flight is solar panels and get into the
    stratosphere: an electric aircraft might be capable of flying above the
    clouds indefinitely, using stored battery power and gliding at night.

    Its VERY marginal, but the energy balance is just about on the plus side.
     
    The Natural Philosopher, Apr 20, 2012
    #9
  10. PeterC

    dennis@home Guest

    Why would that be?

    Do subs leave radioactive wakes?
     
    dennis@home, Apr 20, 2012
    #10
  11. PeterC

    harry Guest


    I have wondered if it would be possible to do a similar thing with a
    kite.
    I remember having a kite device with rotating wings when i was a kid.
    It worked well, I could never see how it worked.
     
    harry, Apr 21, 2012
    #11
  12. PeterC

    harry Guest

    The balloon thing only works because it's tethered.
    Your airship device would be another of your perpetual motion
    machines.
    ie, it could never work.
     
    harry, Apr 21, 2012
    #12
  13. PeterC

    Brian Gaff Guest

    And this has a connection with wind turbines then? I'm confused.
    Brian
     
    Brian Gaff, Apr 21, 2012
    #13
  14. PeterC

    harry Guest

    Such devices are common.
    http://en.wikipedia.org/wiki/Wind-powered_vehicle
     
    harry, Apr 21, 2012
    #14
  15. PeterC

    harry Guest

    Solar powered aircraf thave flown continuously for hundreds of hours
    so circumnavigation is easily possible.
    http://en.wikipedia.org/wiki/Solar-powered_aircraft#QinetiQ_Zephyr
     
    harry, Apr 21, 2012
    #15
  16. PeterC

    harry Guest

    They are shielded.
     
    harry, Apr 21, 2012
    #16
  17. PeterC

    dennis@home Guest

    Not as confused as harry and the others are about making some of the wind
    turbines into fans and blowing an airship along, they appear to think its
    perpetual motion even if they are powered by nuclear.
    They can't even work out that it was a dig at green energy.
     
    dennis@home, Apr 21, 2012
    #17
  18. PeterC

    dennis@home Guest

    and that makes them different to reactors on planes?
     
    dennis@home, Apr 21, 2012
    #18
  19. PeterC

    dennis@home Guest

    They still didn't leak vast amounts of radioactive waste behind them.
    The shielding protected the crew from gamma and neutrons flying about.
    The reactor was in a containment vessel of some sort.
     
    dennis@home, Apr 21, 2012
    #19
  20. You missed the link to helium filled ducted fan kites hoisting wind
    turbines above the boundary layer, then?
     
    The Natural Philosopher, Apr 21, 2012
    #20
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