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infra red leds

Discussion in 'Home Power and Microgeneration' started by Julian McHale, Jan 31, 2004.

  1. I was wondering if infra red leds could heat water as they operate at 100
    degrees C. Sorry I have no science. My other question was pendulums.
    Could you get a massive swinging pendulum and power tools, washing machine
    and charge batteries that way ?
     
  2. Steve Spence

    Steve Spence Guest

    infra red leds do not operate at 100 C except at the junction. as there is
    little wattage (.5mw), as soon as you try to heat something (your finger)
    you drop the temperature below useful range. incandescent make nice heaters
    because they run at higher wattages, and produce more heat than light.



    --
    Steve Spence
    Renewable energy and sustainable living
    http://www.green-trust.org
    Donate $30 or more to Green Trust, and receive
    a copy of Joshua Tickell's "From the Fryer to
    the Fuel Tank", the premier documentary of
    biodiesel and vegetable oil powered diesels.
     
  3. Bob Adkins

    Bob Adkins Guest

    You would need a huge bank of IR LED's to do any serious heating, but you
    could.

    I think I want my bathroom walls and ceiling totally covered in IR LED's
    some day. :)

    Bob
     
  4. Steve Spence

    Steve Spence Guest

    enough ir led's to do any heating worth mentioning would require great
    amount of energy, and thousand of led's (tens of thousands?) there just
    isn't much heat involved. try an electric element. it's higher efficiency.


    --
    Steve Spence
    Renewable energy and sustainable living
    http://www.green-trust.org
    Donate $30 or more to Green Trust, and receive
    a copy of Joshua Tickell's "From the Fryer to
    the Fuel Tank", the premier documentary of
    biodiesel and vegetable oil powered diesels.
     
  5. Bob Adkins

    Bob Adkins Guest


    I've got news for you bubba. Barbara Eden is compliant even today. :)

    Bob
     
  6. ArtWork

    ArtWork Guest

    Bob are the LED's in the bathroom in preference to the mirrors on the
    ceiling in the bedroom now you are starting to get on in years?
    [/QUOTE]
     
  7. Bob Adkins

    Bob Adkins Guest

    Mirrors? They never worked for me. I either break them or fog them up.

    I was just thinking of a cheap way to get gentle, uniform radiant heat from
    the walls and ceiling without wasting in the walls and attic.

    Even though the bathroom (for example) temperature is 76F, it can be chilly
    because the walls and floor are chilly.

    Bob
     
  8. Steve Spence

    Steve Spence Guest

    well LED's are not the way to do it. have you thought about radiant heat?
    Low temp hot water can do wonders.

    --
    Steve Spence
    Renewable energy and sustainable living
    http://www.green-trust.org
    Donate $30 or more to Green Trust, and receive
    a copy of Joshua Tickell's "From the Fryer to
    the Fuel Tank", the premier documentary of
    biodiesel and vegetable oil powered diesels.
     
  9. Steve Spence

    Steve Spence Guest

    why?

    --
    Steve Spence
    Renewable energy and sustainable living
    http://www.green-trust.org
    Donate $30 or more to Green Trust, and receive
    a copy of Joshua Tickell's "From the Fryer to
    the Fuel Tank", the premier documentary of
    biodiesel and vegetable oil powered diesels.
     
  10. Bob Adkins

    Bob Adkins Guest

    I think that's splitting hairs. There are ways to visualize IR, so that it
    becomes "visible light".

    Besides, people look at you funny if you call an IR light bulb an "IR wave
    producing device". :)

    Bob
     
  11. Bob Adkins

    Bob Adkins Guest

    Though funny you said it, right you are. :)

    Bob
     
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