something I was kicking around.
Quote from: onthecuttingedge2005 on March 14, 2010, 11:39:43 PM
something I was kicking around.
Maybe you should use nitinol wire for a heat engine...
http://www.youtube.com/watch?v=bmWWZKPDkv4
Quote from: Low-Q on March 15, 2010, 05:20:08 AM
Maybe you should use nitinol wire for a heat engine...
http://www.youtube.com/watch?v=bmWWZKPDkv4
Hi Low.
actually Nitinol can work with both direct heat exchange and or electrical exchange, both can cause memory reshaping.
I was thinking about using the high voltage from piezoelectric whiskers deformation to induce an electrical charge into the nitinol to cause a reaction in the nitinol, thinner wires of nitinol react more to lessor current than thicker nitinol wires, if the gauge ratio's between piezoelectric whisker and nitinol can be equated then then it is possible to get high voltages when the metal reforms itself.
I think it might turn out more like a transformer than anything else.
*
* PI
Re: Piezoelectric Nitinol
« Reply #1 on: March 15, 2010, 10:20:08 AM »
* Reply with quoteQuote
Quote from: onthecuttingedge2005 on March 15, 2010, 04:39:43 AM
something I was kicking around.
Maybe you should use nitinol wire for a heat engine...
http://www.youtube.com/watch?v=bmWWZKPDkv4
AND:
Maybe you should use nitinol wire for a heat engine...
http://www.youtube.com/watch?v=bmWWZKPDkv4
Hi Low.
actually Nitinol can work with both direct heat exchange and or electrical exchange, both can cause memory reshaping.
I was thinking about using the high voltage from piezoelectric whiskers deformation to induce an electrical charge into the nitinol to cause a reaction in the nitinol, thinner wires of nitinol react more to lessor current than thicker nitinol wires, if the gauge ratio's between piezoelectric whisker and nitinol can be equated then then it is possible to get high voltages when the metal reforms itself.
I think it might turn out more like a transformer than anything else.
END QUOTE:
This thread needs to be pursued further,I think.Wonder how this would work in a vacuum?.Quite well ,I would speculate.You can bet,a lot of this has went up as ISS experiments.Fascinating..
thanks Edge,
Joe in Texas
Also, to take this a little further it may be possible to mix Piezoelectric crystals with ferrite powder and make Piezoelectric Ferrite cores for coil windings.
the Electromagnetic induction will cause nano-malformations in the Piezoelectric-Ferrite core and cause High voltage sparks to occur.
if the mix could be made somewhat conductive then the electrical sparks might have better efficiencies.
Nitinol! Great idea!!!
This is an experience that is worth trying!
That is what we need: new ideas, using new types of materials!
Piezoelectricity is the key!
lso, to take this a little further it may be possible to mix Piezoelectric crystals with ferrite powder and make Piezoelectric Ferrite cores for coil windings.
the Electromagnetic induction will cause nano-malformations in the Piezoelectric-Ferrite core and cause High voltage sparks to occur.
if the mix could be made somewhat conductive then the electrical sparks might have better efficiencies.
And Edge, if the core was magnetized we would have DC?Or a BID diode?Or perhaps the often over-looked flux-capicator?
These Crystals,require a closer look.
Cheers
Joe in Texas
High Efficiency Power Conversion Device idea with Nitinol - free to use (not my site):
http://www.pacificsites.com/~snyder/Ebay/Nitinol/high_efficiency_power_conversion.htm
Good source of info: http://www.dtic.mil/dtic/tr/fulltext/u2/a108973.pdf (http://www.dtic.mil/dtic/tr/fulltext/u2/a108973.pdf)
NiTi was the first thing that got me into looking at the energy we use. Back when I was a kid I tried to design a motor. When I had a good idea of the capabilities of the metal it dawned on me to make a lever type engine. This engine would have a crank shaft that the levers would attach to, to push rods. The metal is freaking awesome as a transducer of heat to mechanical properties. The time I sarted looking at it was in the 80's but since life can be crappy and redirect your attention, I had completely forgot about it. Now is the time to take action. Year after year we waste our money because it is what they want to happen. After all your money is their income.
Lets get on the ideas here and finish what they are dragging their feet on for 50-70 years. Designs with flywheels would be best to be able to bend the levers into a deformed shape then electrical heating could be applied wound around the levers. A cold spray of water could release the lever and allow bending of the lever.
Nitinol materials available here:
http://www.imagesco.com/catalog/nitinol/index.html (http://www.imagesco.com/catalog/nitinol/index.html)
Paper on First Nitinol Converence. Interesting read.
http://www.dtic.mil/cgi-bin/GetTRDoc?Location=U2&doc=GetTRDoc.pdf&AD=ADA108973 (http://www.dtic.mil/cgi-bin/GetTRDoc?Location=U2&doc=GetTRDoc.pdf&AD=ADA108973)