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More Ideas in Light and Energy - The Blog

exergia’s experiments – Schmidt Wheel 1

The classic wheel:

Idea: use a Drinking bird like device (“mechanical flow diode”) as spoke like structure of a wheel and build somethinmg similar like a Minto wheel.

Two main entropy sources could drive the process:

1.) Time fluctuating heating and cooling

Heat flows from hot water bassin at a fixed position at the bottom -

2.) Continuously heating and cooling
Water evaporation on one end of the flow diode.

1.) Time fluctuating heating and cooling

During the heating phase – the lower bird part is in contact with the hot water – the symmetrical inclinations of the birds axis towards the water surface normal vector, meaning more or less shifting the center of mass in compensating locations without resulting net torque. So one has to use this unsymmetrical configuration:

The bird does react very slowly, when the hot water is only in contact with the liquid phase of the working fluid. So you have to dip deeper into the hot water …
You need additional force to put the glass bulb under water … Possibly this may be solved by increasing the wheels momentum of inertiat … add additional masses.


Does not work properly … because of the thermal mass of the glass bulb there is a more or less continious heating and no real time fluctuation. Of coures amount of  heating power changes during the period in the hot water and outside. But proper operation would need some tricky adjustment of the temperature and amount of fluid inside the bird … don’t know if this would be the right direction to continue …

Take care to include a mechanism to balance the center of mass of the main wheel and the spokes. Otherwise the resulting torque of displaced fluid mass inside the bird may be to small to drive the whole thing …
Stef’s new idea – cut the end of the glass tubes with an oblique angle so the problematical phases of counteracting torque may be eliminated … ???

2.) water evaporation on one end of the flow diode – continuously heating and cooling
The above type will not work here. Because of permanent cooling (and heating) there are phases where the rise of the fluid will shift the center of mass to the up right or left side resulting in compensation a the resulting clock- and counterclockwise torques. So we need a new idea …

Continue “exergia’s expriments – Schmidt Wheel 2″

Filed under: exergia's projects,gravity wheel,minto wheel — exergia posted 01/07/2011 at 5:20 pm

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