Yep, I'm giving the old perpetual motion machine a third and final stab.
Before I explain it in detail, I'd like to remind everyone that I am not a mathematician or a scientist, and my understanding of theoretical physics is basic at best. So perhaps you can chalk this one up to 'great idea, but the numbers don't quite add up'. On the other hand, perhaps I've stumbled upon something that no-one else has, and would therefore need to seriously consider removing the negative adverb from the title of this website.
It's all about superfluids. As with all my 'genius' ideas, this one is fairly straight forward ...(and ill thought out).
If you cool helium down to at least 2 degrees above absolute zero, it becomes a superfluid. Superfluids have many interesting properties. One of these is that they have no surface tension, and will continue to flow at a thickness of mere atoms over itself, the effect of which means it can effectively flow up the side of a bowl. My idea exploits this property.
If a superfluid can crawl up the vertical side of a bowl with a minimum of encouragement, then I see no reason why the same substance can't flow up the lesser angled slope, of a hellical structure. A reverse helterskelter if you will.
If enough liquid helium we're to make this trip, then at the top, when it reached an appropriate shaped spout, it would fall through a traditional water wheel turbine. This turbine would produce electricity. The superfluid would then return to the shallow pool where it came from, then it continues the cycle of moving up the hellical tower.
Now, if enough liquid helium was used in enough helterskelter/turbine systems, then a greater amount of electricity can be generated. In fact there has to be an optimum quantity of superfluid per turbine for it to run most efficiently (cos you don't want a surplus of superfluous superfluids). On top of this, there has to be an optimum scale of the turbines to produce the greatest amount of power, as well as an optimum number of such turbines per squared metre to produce the most power by recycling the liquid helium as efficiently as possible. If you take all these variables and make this gravity-defying liquid powerstation (for that is what it is) as energy efficient as possible, then you'll have your solution as to whether super fluid perpetual motion is possible.
Once you've figured out the optimum measurements, quantities and ratios, then you need to figure out the optimum freezer configuration, (which is to say, the minimum power input needed to maintain the necessary near-absolute-zero temperatures).
So then... you've figured out the maximum possible power output for the most energy efficient turbine/helterskelter/superfluid configuration (A), as well as the minimum power input required to keep this machine constantly cooled at the most energy efficient level possible (B).
Then you just do the maths to see if the machine can power itself as well as produce extra energy...
A - B = C
If C > 0 then you've got yourself a pepectual motion machine!
You're welcome.
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