Re: [EVGRAY] J ² = 1

Body

Hi Ole,

> On 19 Nov 2018, at 23:50, [email protected] [EVGRAY] <[email protected]> wrote:
> 
> "However, this does not yet mean that we have more energy in the cap than was earlier stored in the magnetic field of the coil (just a higher voltage due to the capacitance reduction)."
> Think of the electrocaloric effect: https://wiki2.org/en/Electrocaloric_effect <https://wiki2.org/en/Electrocaloric_effect>. This is just like the magnetocaloric effect (https://wiki2.org/en/Magnetocaloric_effect <https://wiki2.org/en/Magnetocaloric_effect>) but for electric fields. 

Thanks of the link. This effect make sense for me. But it seems rather impractical for serious exploitation. What are these mW gadgets good for if there is no hope at all to ever being able to scale them up by factor of 10 million to be practical!?

> If the circuit is a self-runner the energy must come from somewhere. My guess is that it converts ambient heat to electricity. Decreasing the capacitance to half its initial value at constant charge implies doubling the energy being stored.

I agree. But it seems we need to add energy to the system, either mechanically or thermodynamically!? And we need to to cool and heat a medium 100.000 times per second to exploit this reasonably, don’t we!? I can’t see yet how? 

> If there is some phase shift between the changing capacitance and the stored charge there could be some kind of parametric pumping. This of course requires going the proper way around the cycle in the phase plane.

That might be the problem. We can do this in a classical heat pump setup with a designated compressor and expansion valve. Doing this in a core/dielectricum seems to be a totally different cup of tea. The effects are there but unfortunately minuscule and not easily controllable!? :-(

Regards,

   Andreas