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Category: Tech
Date: 03/10/13 01:43 PM

18 Responses to Nitinol – A New Free Energy System?

  1. Profile photo of chalket
    chalket Male 50-59
    2712 posts
    March 10, 2013 at 1:43 pm
    Link: Nitinol - A New Free Energy System? - Well, new in the 70`s... where is this energy technology now?
  2. Profile photo of HOBOMOE
    HOBOMOE Male 18-29
    515 posts
    March 10, 2013 at 3:01 pm
    Well a quick search on Google Scholar shows that there is still some research going on regarding it, 115 papers since 2012. I`m guessing it hasn`t been very mainstream because of Big coal and oil lobbying to minimize its coverage. That, or a patent is holding up other people from working on it effectively.
  3. Profile photo of TruTenrMan
    TruTenrMan Male 30-39
    2553 posts
    March 10, 2013 at 3:02 pm
    But energy is still required to produce the heat to revert the nitinol.
  4. Profile photo of Twinklestein
    Twinklestein Male 30-39
    513 posts
    March 10, 2013 at 3:12 pm
    "But energy is still required to produce the heat to revert the nitinol."

    Yup and solar seems to be sufficient for that energy input.
  5. Profile photo of HOBOMOE
    HOBOMOE Male 18-29
    515 posts
    March 10, 2013 at 3:25 pm
    On a small scale it is easy to hook up a solar powered heater, like they said several times before in the video. The goal at the end was to used latent and wasted heat to give them the temperature difference they want. Without numbers its hard to say if the nitinol engine could produce enough energy to heat itself and deliver a lot of power.
  6. Profile photo of Cherrybawls
    Cherrybawls Male 18-29
    167 posts
    March 10, 2013 at 3:53 pm
    Its not free energy but converting heat directly to mechanical energy in this way may be far more efficient than other methods. Traditional car engines manage to achieve about 15% efficiency in terms of converting heat into mechanical energy
  7. Profile photo of ScottO198
    ScottO198 Male 18-29
    83 posts
    March 10, 2013 at 7:12 pm
    All of the people in this video were later killed.
  8. Profile photo of jaa12064
    jaa12064 Male 40-49
    25 posts
    March 11, 2013 at 12:55 am
    Here is a place to start - http://www.nitinol.com/
  9. Profile photo of Draculya
    Draculya Male 40-49
    14544 posts
    March 11, 2013 at 1:45 am
    I`ve heard about nitinol and yes, it could be used, but we don`t make good use of heat recovery, except in CCGTs. Other tech exists too, such as Stirling engines.
  10. Profile photo of kvetcher
    kvetcher Male 50-59
    213 posts
    March 11, 2013 at 6:09 am
    The acid test with all these "free" energy systems is this: when the Chinese steal it, it really works.
    Until then, it`s a scam, or a lab fluke. Remember low-temperature super-conductivity?
  11. Profile photo of Izroth
    Izroth Female 30-39
    154 posts
    March 11, 2013 at 9:46 am
    Why haven`t we heard of this before?? Did they finally disprove it??
  12. Profile photo of klaxor
    klaxor Male 18-29
    646 posts
    March 11, 2013 at 9:49 am
    "Traditional car engines manage to achieve about 15% efficiency in terms of converting heat into mechanical energy"

    - We don`t use 19th century steam engines anymore, old chap. ;-)
  13. Profile photo of EgalM
    EgalM Male 30-39
    1707 posts
    March 11, 2013 at 10:39 am
    Another example of something without a load. Not sure it would work under a load situation, which would render it useless.

    LOL, good luck harnessing all that excess heat wasted in people`s homes, genius.
  14. Profile photo of Mardie
    Mardie Female 40-49
    26 posts
    March 11, 2013 at 11:17 am
    From what I understand, the alloy has to be very precise in the Ni Ti mixture. I suspect the cost of manufacturing the metal made it cost prohibitive. The video mentions two years to pay for the metal if they could get the cost to $200 a pound. I`m not sure what that translates to today`s dollars, but certainly 1000s of dollars a pound. I think metal fatigue may be an issue as well. Metal bending back and forth 24 hrs a day, 7 days a week, seems like it would fail well before 2 years.
  15. Profile photo of CreamK
    CreamK Male 40-49
    1423 posts
    March 11, 2013 at 11:59 am
    Why it hasn`t been used? It`s intermetallic alloy. From wiki: "Nitinol is exceedingly difficult to make, due to the exceptionally tight compositional control required, and the tremendous reactivity of titanium. Every atom of titanium that combines with oxygen or carbon is an atom that is robbed from the NiTi lattice, thus shifting the composition and making the transformation temperature that much colder." It`s hard to process in to shapes and is subjected to metal fatique, allthou it`s superior to almost any other metal in that sense, it still breaks too easily.

    Its` just too expensive to manufacture in quantities that would suffice the world market. More of a quirk than abundant material.
  16. Profile photo of Laran
    Laran Male 40-49
    467 posts
    March 12, 2013 at 3:10 am
    @CreamK - you didn`t watch it all did ya.
    At about 6:45 the researcher states that the materials are readily available and CAN be produced on a large scale.

    and we actually already do use this stuff (along with other memory metals) in many applications.
    memory metals are used for high pressure hydraulic line joints,and even for splinting bones together because they can be produced in one shape ,stretched , and then when inplanted body heat will make it return to its original shape pulling the bone tight.the same is done with pipe joins.
    I didn`t realize that the transition could happen so fast as this though.
    as a kid I remember reading about a concept where NASA wanted to compact a space compartment and let solar heat expand it back into a room.
  17. Profile photo of Laran
    Laran Male 40-49
    467 posts
    March 12, 2013 at 3:16 am
    cont... This compartment would not be a good place be if you ever crossed the shadow of the Earth or Moon. O.o
  18. Profile photo of CrakrJak
    CrakrJak Male 40-49
    17515 posts
    March 12, 2013 at 6:05 am
    kvetcher: Perhaps you haven`t read about it, but room temperature superconductivity has been found in graphite recently. MIT Tech Review

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