I think I've found Maxwell's Demon, however the demon is quite large...

[Nabo00o]

Thank you Broli.
But if it would work is another hard question.
Since the fluid is constantly moving I wonder if it could work like the original and stabilize.

This reminds me of those centrifuges they use to separate heavier particles from lighter ones, but can it separate temperature??? ........

[broli]

We know it works on liquids by accelerating seperation between different densities, for instance a blood centrifuge or even an oil centrifuge which separates oil from water. So why would it break down for temperate.

The only reason I can think of for it to break down is if the motion gets violent for some reason and turbulence arises breaking the nice circular flow of the water. You can do that by throwing something in the water  . Other than that I see no reason why it wouldn't show whether the concept has merit or not.

[Nabo00o]

I agree that it could maybe work all though it might turn out that other fluids such as air would work better (which wouldn't necessarily be a problem....)

I could imagine using a Bedini trigger and a spinning neo-magnet, combined with another larger neo-magnet for levitation support would have very little friction, as it would not even touch the container...


The end goal should in any case be that this is as simple and practical as possible for the inventor to construct, and that is also one of the good things about Bedini circuits.

Julian

[Low-Q]

I know this is an old thread, but I want to put in some ideas. Gravity is affecting weight the same way as a centrifugal force do. If we have a wheel with many tubes (acting as spokes) which is filled with water. Let this wheel have a given radius. The severe pressure at the outer edge at high rpm will cause the temperature difference to be much grater, and the centrifugal forces could be 100 times the force of gravity. The inner part of the tubes would be boiling at 1 bar pressure, but the water at the outer edge would be very cold.

I have no clue about this, because I have never tried, but if it is true that water in an insulated tank will "automaticly" have hotter water on the top, something tells me that we can create a huge temperatur difference by applying next to no energy input at all. This difference can for sure be harnessed just by maintain the rpm of the wheel.

EDIT: I just measured the water density at boiling point and at 4 degrees celcius. The difference is 983g for one litre boiling hot water, and 1035g for 1 litre cold water. This is done with a 0.1g resolution kitchen scale. The difference is anyways about 5% density. This is much more that I had expected. Maybe I have to do more tests....or google it.

[Nabo00o]

Low-Q thank you so much for bringing this up again! After I read your reply I got interested and watched some of my first posts in this tread and one statement give me another idea:

I think the power capability of the entire system depends on how large the density change in a given fluid is in response to a temperature change. If it is minor I would assume that only a small temperature gradient would appear. But if the fluid has a very fast density response to a temperature change, and especially in the region of normal temperate air, then very sharp gradients could probably be created, which would allow larger temperature amplifications for each tank to be made.

Do you see what I am getting at?
What happens if water were heated above its boiling point, just before or under the process?
It would evaporate, its density would explode, and its temperature would drop immensely!

Phase change can possibly be a key to make this type of a machine terribly efficient, or in other words increase its power output many times. The only problem as always with water in in these type of machines is that they require a high temperature (and high energy) to change their fluid's phase, and likewise a large pressure change for the same result.

That is of course why all our fridges, freezers, air conditioners (and not least heat pumps) uses a refrigerant that changes its phase much closer to the ambient temperature!
I think I can recall that a mechanical motor operated by a small temperature difference used propane or possibly butane as its refrigerant, of course there is a huge risk of explosion with such gases, but most refrigerants are usually toxic anyway...


In addition, the very great pressure change which a refrigerant would experience being centrifuged could help the process very much, possibly making very high rpm unnecessary.
Also to revisit the original idea, an insulated tube filled with a low temperature refrigerant could aid the process, but it could potentially also do the opposite. I am concerned that an impregnable wall between the liquid and gas would appear. Even in a pure gas such walls tends to form, which mentioned earlier was called temperature inversion.

Interesting this line of thought 
Julian