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Author Topic: Rotary Heat Expansion Motor  (Read 10290 times)

Offline onthecuttingedge2005

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Rotary Heat Expansion Motor
« on: November 14, 2009, 10:31:36 PM »
this system uses the same principle as a minto's wheel but was designed to be more efficient at transferring a low boiling point liquid causing the wheel to rotate by a one way flow of a liquid, liquid mercury would work best as the flow transfer medium inside the copper tubing.

the tubing would be filled to about half way.

Jerry

Offline lumen

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Re: Rotary Heat Expansion Motor
« Reply #1 on: November 15, 2009, 03:09:01 AM »
I think this would be a lot safer if it just used water in low pressure.

You could reduce the pressure enough to lower the boiling point of the water to about 80 degrees Fahrenheit instead of using toxic mercury.

Offline onthecuttingedge2005

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Re: Rotary Heat Expansion Motor
« Reply #2 on: November 15, 2009, 03:31:36 AM »
I think this would be a lot safer if it just used water in low pressure.

You could reduce the pressure enough to lower the boiling point of the water to about 80 degrees Fahrenheit instead of using toxic mercury.

Hi Lumen.

quite right, but the Mercury can deliver more torque because of it's weight & density. it flows rather well under thermal expansion. the mercury would be self contained in the unit, Mercury is quite safe if regulations and safety measurements are met.

you could use a different liquid but it won't be as efficient. Mercury is inexpensive.

Jerry ;)

Offline onthecuttingedge2005

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Re: Rotary Heat Expansion Motor
« Reply #3 on: November 15, 2009, 03:39:13 AM »
Since the Rotary Heat Expansion Motor uses waste heat to make it more efficient I can attach a generator to it in a pool of oil or water and return the heat generated from the generator to feed the Rotary Heat Expansion Motor, sort of recycling the wasted energy for greater efficiency.

Mercury is equivalent to 113.4 lb/gal [US].(pounds per gallon). some good torque can be gained with this liquid. using 'arrays' of the Rotary Heat Expansion Motor rims I can get some good torque output.

you can use a torque wrench and draw it up to 113.4 lb and you will see it's a good amount of force.