PhysicsProf Steven E. Jones circuit shows 8x overunity ?

[xee2]

  I was about to respond to you, Xee, when I saw that you had found error in your post and removed it.  Thanks.  (Note: the circuit in the cal'r will not have a battery in it at all; planning to use a cap.)

Right, agreed.


Sounds like it to me, too, but Prof H is still over in Europe.  When I sit down with him, I'll find out the details.

I tried to measure the circuit efficiency, but the circuit current changes if I replace the LED with a diode. So I agree with you that the only way to measure the output power is to put the LED in a calorimeter and measure the heat output.

[JouleSeeker]

  Thanks, Xee2.

This is interesting from Pop Sci:

A new alloy with unique properties can convert heat directly into electricity, according to researchers at the University of Minnesota. The alloy, a multiferroic composite of nickel, cobalt, manganese and tin, can be either non-magnetic and highly magnetic, depending on its temperature.

Multiferroic materials possess both magnetism and ferroelectricity, or a permanent electric polarization. Materials with both of these properties are very rare; check out this explainer from the National Institute of Standards and Technology if you’re interested in the electron orbital arrangements that cause these phenomena.

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...
In this case, the new alloy â€" Ni45Co5Mn40Sn10 â€" undergoes a reversible phase transformation, in which one type of solid turns into another type of solid when the temperature changes, according to a news release from the University of Minnesota. Specifically, the alloy goes from being non-magnetic to highly magnetized. The temperature only needs to be raised a small amount for this to happen.

When the warmed alloy is placed near a permanent magnet, like a rare-earth magnet, the alloy’s magnetic force increases suddenly and dramatically. This produces a current in a surrounding coil, according to the researchers, led by aerospace engineering professor Richard James. Watch a piece of the alloy leap over to a permanent magnet in the video clip below.

A process called hysteresis causes some of the heat energy to be lost, but this new alloy has a low hysteresis, the researchers say. Because of this, it could be used to convert waste heat energy into large amounts of electricity.

[nul-points]

 

  For the Cal'r test, I'd much rather have your device to test, NP!  so glad that you are building a version that will fit into the tight space. 
[...]

hello Steven

i've finished the 'compact' version of my SJ1 looped bifilar variant

i don't have a 'D' cell to display against in a photo, so i've shown the unit alongside an AAA cell (see below)

the 'end-on' photo shows the unit operating from a 1000uF cap (temporarily connected to the screw contacts which will accept the supply wires when loaded in the Calorimeter)

the device will be a close fit to a 'D' cell envelope, and i guess that the Calorimeter will be either copper or steel, so it remains to be seen if the circuit still operates in close proximity to the container walls in the test!

i'll try and get that posted off to you asap (may have to be after the weekend)


that new ferroic material sounds very interesting - it surely can't be long until we start to see some form of domestic level heat-to-electricity converters becoming available -  that would be a boon in many 'developing' countries!

thanks
np


http://docsfreelunch.blogspot.com

[DrStiffler]

hello Steven

i've finished the 'compact' version of my SJ1 looped bifilar variant

i don't have a 'D' cell to display against in a photo, so i've shown the unit alongside an AAA cell (see below)

the 'end-on' photo shows the unit operating from a 1000uF cap (temporarily connected to the screw contacts which will accept the supply wires when loaded in the Calorimeter)

the device will be a close fit to a 'D' cell envelope, and i guess that the Calorimeter will be either copper or steel, so it remains to be seen if the circuit still operates in close proximity to the container walls in the test!

i'll try and get that posted off to you asap (may have to be after the weekend)


that new ferroic material sounds very interesting - it surely can't be long until we start to see some form of domestic level heat-to-electricity converters becoming available -  that would be a boon in many 'developing' countries!

thanks
np


http://docsfreelunch.blogspot.com

A pro job!

I do not know if you might have ready access to a copper pipe to slip the unit into or may be just pull the batteries out of a flash light or (touch) and slip the unit in and see if it still works. Heck stuff it into a metal mint box or something. It would benefit as you know an early conclusion (result), if it does die in a close proximity container then are you not wasting Dr. Jones access to the device?

Oh sorry, you don't know who Stiffler is... Forgive me for offering a logical suggestion.

[nul-points]

 

[...] a flash light or (touch)
[...]

...did you mean to say 'torch'?