Nitinol - A New Free Energy System?

Submitted by: chalket 4 years ago in Tech

Well, new in the 70"s... where is this energy technology now?
There are 18 comments:
Male 17,511
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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Male 466
cont... This compartment would not be a good place be if you ever crossed the shadow of the Earth or Moon. O.o
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Male 466
@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.
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Male 1,421
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.
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Female 26
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.
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Male 1,735
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.
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Male 646
"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. ;-)
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Female 154
Why haven`t we heard of this before?? Did they finally disprove it??
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Male 213
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?
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Male 15,261
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.
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Male 25
Here is a place to start - http://www.nitinol.com/
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Male 83
All of the people in this video were later killed.
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Male 167
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
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Male 515
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.
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Male 510
"But energy is still required to produce the heat to revert the nitinol."

Yup and solar seems to be sufficient for that energy input.
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Male 2,552
But energy is still required to produce the heat to revert the nitinol.
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Male 515
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.
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Male 2,711
Link: Nitinol - A New Free Energy System? [Rate Link] - Well, new in the 70`s... where is this energy technology now?
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