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Author Topic: Air Temp Nitinol  (Read 145004 times)

Offline gadgetmall

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Air Temp Nitinol
« on: July 04, 2012, 04:08:49 AM »
I recently bought three varities of Nitinol Wire with reaction temps as follows . one is 115 degrees F the next is 98.6F and the third is the new AIR TEMP 70 DEGREES F . they all have infinate memory capibilities as long as the stress and memory temp parameters are met
mY  plans are to make a thermobile type motor with shafts to hold multiple pairs of Nitinol Wheels and connect the shafts to either a small motor/generator or put magnets on the shaft and capture the electricity with coils. The Nitinol can be Bought Cheap as a 300 foot roll cost 99 dollars . and 5 foot sections for 10 dollars . any one want to join in and get the Nitinol motor gen project ideas are welcoms . also any comments welcome . The "Heat" motor will use plain cool water and the outside air temp greater than 69degrees F to run the motor using AIR TEMP NITINOL. there will no need to heat up water as the air itself will supply the heat while the task will be to keep the cold side cooler so a 20 degree differantionl to run the motor . Now here on the East Coast i have recorded 116 degree air temp as we are in a Heat wave so heat is not the problem .Keeping the cool water might be . Possible using the earth ground as an insulator on the cold side of the motor and exposing the hot side to the air .
You can watch a Lecture about the properties and uses here .. http://www.youtube.com/watch?v=rZpZhSdgdSI&feature=endscreen&NR=1
Gadget

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Air Temp Nitinol
« on: July 04, 2012, 04:08:49 AM »

Offline gadgetmall

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Re: Air Temp Nitinol
« Reply #1 on: July 04, 2012, 03:34:52 PM »
Here is a Design that will convert Nitinol to mechanical Energy (motor) This design ternimates to a crankshaft . you could use this to power an electric generator . This type of Nitinol wire can lift 30 pounds 30 inches with just a 30 degree F shift in tempature differential .
http://www.pacificsites.com/~snyder/Ebay/Nitinol/high_efficiency_power_conversion.htm
 
This wire is Availible on ebay for 19.95 us for 40foot roll . http://www.ebay.com/itm/330696040468?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Gadget Al

Offline tak22

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Re: Air Temp Nitinol
« Reply #2 on: July 04, 2012, 07:46:53 PM »
Hi Gadget,
Thanks for bring our attention to the availability of air temp Nitinol. Here's a link for a company that I've had good service for purchasing from that sells the low temp wire: http://www.ebay.ca/itm/Air-Temp-Nitinol-SHAPE-MEMORY-Wire-magic-tricks-robotics-5-feet-/251012885447?pt=LH_DefaultDomain_0&hash=item3a7188abc7


If I was working with Nitinol I'd work on a linear drive instead of rotary, you can now get highly efficient linear generators that operate on as little as a 0.5 in stroke.


tak


Offline gadgetmall

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Re: Air Temp Nitinol
« Reply #3 on: July 04, 2012, 09:26:46 PM »
Hello tak22 . I thought about linear however using just plain Nitinol wire we don't get much movment Linearly like 8 percent not like the Wave generators i have read about . Thats why robotics and such use nitinol wire for auctators and such . You can make the throw much more than 8% IF you use Nitinol Spring loops .I have yet to find a nitinol spring more than 6mm for less  than 21 dollars. Also they dont make it in air temp Nitinol and the reaction of other Nitinol springs and helix are close to the boiling point.I see your poing though we could tie one of those squeze generators like you see on those russian emergency lights .Once nitinol Springs are made with Air temp nitinol that will be a good option.here is a link about nitinol and linear operations . http://cimar.mae.ufl.edu/CIMAR/pages/thesis/santiago_jr.pdf
 
 

Offline tak22

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Re: Air Temp Nitinol
« Reply #4 on: July 04, 2012, 10:22:21 PM »
Thanks for the article, I dug around my files and found the link for the linear alternators I mentioned, they range from 100w to 10Kw: http://www.qdrive.com/UI/ProductsListing.aspx?ptype=2&mcid=115&pcid=115&ccid=116
A little gearing should overcome the 8% limit quite easily.


tak

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Re: Air Temp Nitinol
« Reply #4 on: July 04, 2012, 10:22:21 PM »
Sponsored links:




Offline Mark69

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Re: Air Temp Nitinol
« Reply #5 on: July 05, 2012, 03:28:02 PM »
Hi gadget,  I think the nitinol motor is the best chance to get an overunity device working at a  price to afford.  I am glad to see someone giving it a go.  I would be interested in building one of these as well.  Please keep us updated on your progress.

Thanks,
Mark

Offline Poit

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Re: Air Temp Nitinol
« Reply #6 on: July 05, 2012, 03:42:41 PM »
Hi Gadget,
Thanks for bring our attention to the availability of air temp Nitinol. Here's a link for a company that I've had good service for purchasing from that sells the low temp wire: http://www.ebay.ca/itm/Air-Temp-Nitinol-SHAPE-MEMORY-Wire-magic-tricks-robotics-5-feet-/251012885447?pt=LH_DefaultDomain_0&hash=item3a7188abc7


If I was working with Nitinol I'd work on a linear drive instead of rotary, you can now get highly efficient linear generators that operate on as little as a 0.5 in stroke.


tak

THANKS!! Bought some! even if i can't make a OU engine, would be hours of fun to play around with :D

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Re: Air Temp Nitinol
« Reply #6 on: July 05, 2012, 03:42:41 PM »
Sponsored links:




Offline gadgetmall

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Re: Air Temp Nitinol
« Reply #7 on: July 05, 2012, 04:03:51 PM »
I also think this is the best chance for ou for anyone .After all all the components in a sterling engine are in this wire . If you really want to play get a ready made Nitinol engine from here . this is the cheapest place i have found and have ordered one for the long nitinol  spring . Be sure to put in the coupon code for your discount http://www.scientificsonline.com/nitinol-heat-engine.html  Edmond Scientific Co.  and here is the Model running http://www.youtube.com/watch?v=Vrsx6f4HrSE  One  minior problem with this design is the slipage on the pulleys . this guy has a much better design using a Nitinol chain and sprockets called the VT1 . grab the pdf while its unrestricted http://scholar.lib.vt.edu/theses/available/etd-02102001-172947/unrestricted/ETD.pdf
 
and the original inventor video  of the just released Video making Nitinol widely known this year . (Why haven't we heard of this before) http://www.youtube.com/watch?v=KoezR5pyweU  this stuff was developed in 1962 .. Maybe because this stuff was top secret and already discovered in 1942 ? (Roswell Crash) Remember the discription of the shiny metal that sprung back when wadded up.
 
 
Gadget al

Offline Paul-R

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Re: Air Temp Nitinol
« Reply #8 on: July 05, 2012, 04:08:52 PM »
Who makes the nitinol products mentioned?

Offline gadgetmall

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Re: Air Temp Nitinol
« Reply #9 on: July 05, 2012, 05:11:09 PM »
http://www.kelloggsresearchlabs.com/  makes the low temp nitinol and some demo toys . you can contact them in the USA @ info@kelloggsresearchlabs.com What is interesting is they make the Nitinol in various activation temps by various amounts of Nickle and Titanium . Air temp Nitinol has 4 times more density and metal than standard high tempature nitinol . They also have Body Temp nitinol for demonstrating transformation at 98.6 . they can design any form or shape of Nitinol for the right price and from searching they are the cheapest manufacture willing to sell by the foot ...other Manufactures want Minium ordered of 700 dollars etc..

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Re: Air Temp Nitinol
« Reply #9 on: July 05, 2012, 05:11:09 PM »
Sponsored links:




Offline Mark69

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Re: Air Temp Nitinol
« Reply #10 on: July 05, 2012, 05:38:29 PM »
Gadget, which engine are you going to build?  What I would like is one I could put in the basement/ attic and drive a generator.  This way I could sell back electricity to the electric company.  I would also like one to run an a/c and heater.  Heck, if they work great, maybe even one to put in a garage.

Offline gadgetmall

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Re: Air Temp Nitinol
« Reply #11 on: July 05, 2012, 05:55:31 PM »
Nitinol Motors have been reported to be way more efficiant and have more torque than a Sterling heat engine . Now with the release of Air temp Nitinol there should be lots of people getting onboard for large Engines to connect to Electrical generators that run simple on our planet that has perpetual sun and air . And we all know that somthing as simple as a  joule thief can light many many leds for a fraction of the input compared to running the leds with normal current and at the very least my failed attempt proved that you can harness very high amperages with a simple Joule thief charging a massive Ultral capacitor to full charge from just a 1.2 volt battery . Generator design has been greatly inhanced over the last few years as show by tak22's link . My plan is to make single wire loops like the old thermobile toy except multipled . one problem is SLIP on the pully.. i thing with the right pully surface it will stick better . One has solved this with single Nitinol wire by making his own Nitinol Chain and using sprockets instead of a smooth surface pully My Hopes are to spur intrest and others make their own versions of Nitinol Engines.this stuff is cheap enuff now that anyone can experiment with it . You might even  have a piece of nitinol .back in the 80's old motorola flip phones had the Nitinol memory wire antenna's.other old cellphones with pull up antennas were tended to be made of memory metal covered in a poly jacket.Also if your wife or girlfriend has an old playtex miricle underwire bra there is memory wire there also :)
So Guys let's start ripping those bras Apart :} :)
 
Gadget

Offline gadgetmall

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Re: Air Temp Nitinol
« Reply #12 on: July 06, 2012, 05:56:30 AM »

Offline gadgetmall

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Re: Air Temp Nitinol
« Reply #13 on: July 06, 2012, 06:14:34 AM »
Some Guy Testing His Nitinol and describing some properties . http://www.youtube.com/watch?v=ONEpZEj6Ymk


quite hilarious

Offline Mark69

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Re: Air Temp Nitinol
« Reply #14 on: July 06, 2012, 02:27:12 PM »
I checked out the link, which has more links to a site called grand-illusions.com, where you can buy some nitinol.  They have a nitinol heat engine toy, which you also can buy.  Is this the design you will be trying to scale up?  I could see that being possible.  At the top, have a generator along with the fan. 
Mark

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Re: Air Temp Nitinol
« Reply #14 on: July 06, 2012, 02:27:12 PM »

 

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