The energy of the straightening rod A isn't enough to bend the rod B AND turn the generator.
Then, you need energy to heat the rods and some extra gear to control the heat generator, which will cause friction and consume some energy as well.
And it is a very high possibility that the rods will simply break in short time.

the concept is intriging , im not bashing just asking, in this concept requiring an initial and i am assuming continous requirment heat source,self sustaining after startup or external requirment thruoghout?

So you require heat sources. To generate a good amount of electricity you need to get some good revolutions per second. I think the revolutions per second will make this fail as an electricity generator.

Good idea though. Very Unique.

Do you have a way to compensate for the possibly extremely low RPM's? Now maybe I am missing things. How many RPM do you expect the generator to move?

How quickly do you expect the nitinol rods to cool down? Because it's the cool down/heat effect that will move the rods to their original position and out of their original position, correct?

Thanks all for the replies,

As i mentioned in the first post, it is initial design, can work on it to make it more efficient of course.

Regarding the heat source, I best let RogueTechie answer that one, the spin wheel uses lenses, at this stage to heat the nitinol.

I asked about the cooling down and heating up aspect as well, and I've already come up with different designs for the Nitinol Rods.... Some of which involve a 'spring' action rather than pulling of a Rod action.

Other methods at the moment which are in the pipeline, involve hot water, which is enough to heat the Nitinol.

Thanks again for the replies

How about using lensed solar to heat the rods and when the rod bends or unbends, it unshades the other rod.

You won't be able to get more energy than you put into the system out of it, however you will be able to convert heat energy into electrical energy, which is still useful. After all, you don't need to use electrical energy to run the heat (you could use fossil fuels, nuclear fuels, solar, etc.) so you should end up with a surplus of electrical energy if done right.

Very very interesting, I will be studying in industrial design soon and I intend to invent/enhance energy production methods.

Oh and Marty, I'm sorry but I deeply hate your avatar, he makes me mad of anger and I don't know why, I'm usually very calm.

OK so the reason we are using the double drive screwdriver is so we can harvest momentum from the shaft turning in both directions since as it stands without a double drive mechanism the device would just turn the device 90 degrees one way and 90 degrees back. With the double drive mechanism we can turn this oscillating motion into plain old rotational shaft energy. And harvest both sides of the motion.

Second:
The device as I've thought it out would actually use solar energy to heat the rods and make them snap to a fully upright position. As long as we don't overheat the rods nitinol will do this for hundreds of thousands if not millions of cycles without failing. The screwdriver would actually be mounted vertically or in the best way to catch the sunlight, which is our energy source. The round plate with the cutouts at the top would either have lenses in the blank spaces or we could even have a fresnel lense mounted above the entire assembly and have the light just shine through the holes as the screwdriver shaft spins. The purpose of the blank and filled spaces is to alternate between heating the rods and letting them cool which will allow the cool rod to bend as the hot rod straightens.

Third:
This is all just a very rough preliminary sketch that may lead to a small proof of concept device since i'm not far enough into my engineering degree to successfully mathematically model my way out of a paper bag. In a full up production ready device we'd probably have 4 of the rod assemblies each 90 degrees out of phase with the next and on it's own pulley to produce constant torque on the screwdriver shaft. One of the key issues we face is finding nitinol rod that isn't too expensive.

If we cannot find nitinol rod though I think we can use nitinol wires for the part I have circled in this picture. and replace the rest of the wire with syncromesh wire and a syncromesh gear to prevent slippage.

Well I thought about that, thats why I put it up here, so if it DOES work out, and then we get hushed up, the designs are here for you all to grab

Here's Revision 2.

Roguetechie is currently working on Revision 3, we'll be getting that up as soon as possible

The above image shows a gear, to a generator. Hopefully that answers some of the torque issues!