Free Energy Nitinol Heat Machines invented in the early 1970's

What is Nitinol?

Nitinol belongs to a class of materials called Shaped Memory Alloys (SMA). SMA's have interesting mechanical properties. Nitinol for example, contracts when heated, which is the opposite of what standard metals do when heated which is expand. Not only does this alloy contract, but does so with a 100 times greater thermal movement (expansion-contraction) than standard metals.

Another interesting property of SMA's is called the Shaped Memory Effect (SME). The alloy can be made to remember a particular shape. Once a shape has been remembered, the alloy may be bent out of shape. Then returned to its original shape by heating the alloy about it transition temperature.

The force generated when the wire is reverting is surprisingly strong. One square inch of Nitinol material generates a shape returning force of + 30,000 PSI.

For applications and examples of use

[link to talkingelectronics.com]

[link to www.pacificsites.com]

And you can buy it online!

[link to www.imagesco.com]

[link to www.nitinol.com]

[link to www.ebay.com.au]

[link to www.imagesco.com]

Examples of engines and toys made using nitinol











How to train nitinol

[link to www.mrsec.wisc.edu]

Followup article on Nitinol Engines by Ridgeway Banks

[link to www.winstonbrill.com]

Extract from above article:

"...I now use air as the cooling medium (heat sink), deforming nitinol wires in pure linear tension (rather than the coil or loop configuration) and letting them shrink back to their original length in solar-heated water. This uses energy much more efficiently, even if it does not make a machine that runs "like clockwork."

"I have finally reached the stage where I "know" my efforts will be recognized by commercial success. Early applications are likely to be in the area of on-site power production for such purposes as agricultural water pumping, but it is possible to envision (in detail) engines producing many hundreds of horsepower for applications ranging from refrigeration to primary power production."

Last Edited by T_C on 03/24/2012 08:28 AM