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Nitinol - A New Free Energy System?

Hits: 7095 | Rating: (2.3) | Category: Technology | Added by: chalket
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Male, 40-49, Midwest US
 17367 Posts
Tuesday, March 12, 2013 6:05:43 AM
kvetcher: Perhaps you haven't read about it, but room temperature superconductivity has been found in graphite recently. MIT Tech Review

Male, 40-49, Australia
 467 Posts
Tuesday, March 12, 2013 3:16:26 AM
cont... This compartment would not be a good place be if you ever crossed the shadow of the Earth or Moon. O.o

Male, 40-49, Australia
 467 Posts
Tuesday, March 12, 2013 3:10:57 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.

Male, 40-49, Europe
 1405 Posts
Monday, March 11, 2013 11:59:57 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.

Female, 40-49, Midwest US
 26 Posts
Monday, March 11, 2013 11:17:38 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.

Male, 30-39, Canada
 1710 Posts
Monday, March 11, 2013 10:39:26 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.

Male, 18-29, Western US
 647 Posts
Monday, March 11, 2013 9:49:21 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.

Female, 30-39, Midwest US
 152 Posts
Monday, March 11, 2013 9:46:25 AM
Why haven't we heard of this before?? Did they finally disprove it??

Male, 50-59, Europe
 213 Posts
Monday, March 11, 2013 6:09:30 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?

Male, 40-49, Asia
 13925 Posts
Monday, March 11, 2013 1:45:05 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.

Male, 40-49, Eastern US
 25 Posts
Monday, March 11, 2013 12:55:29 AM
Here is a place to start - http://www.nitinol.com/

Male, 18-29, Midwest US
 83 Posts
Sunday, March 10, 2013 7:12:05 PM
All of the people in this video were later killed.

Male, 18-29, Eastern US
 169 Posts
Sunday, March 10, 2013 3:53:31 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

Male, 18-29, Midwest US
 515 Posts
Sunday, March 10, 2013 3:25:23 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.

Male, 30-39, Eastern US
 513 Posts
Sunday, March 10, 2013 3:12:24 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.

Male, 30-39, Southern US
 2565 Posts
Sunday, March 10, 2013 3:02:07 PM
But energy is still required to produce the heat to revert the nitinol.

Male, 18-29, Midwest US
 515 Posts
Sunday, March 10, 2013 3:01:59 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.

Male, 50-59, Southern US
 2579 Posts
Sunday, March 10, 2013 1:43:38 PM
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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