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Electrostatic turbine

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ckreol1:
Can the attached electrostatic idea work?


Just as if you could magically de-magnetize a magnet after it is a attracted to iron, separate the magnet, remagnetize it, then repeat the cycle for free work, why can't you charge two plates, allow two plates to attract, recover the charge using common charge recovery methods which would neutralize the plates, and separate them. Then repeat for free energy.

kolbacict:

--- Quote --- recover the charge using common charge recovery methods which would neutralize the plates,
--- End quote ---
it can't recharge the plates without loss energy?

onepower:
ckreol1
That's a very good question and the answer relates to energy.

When we move some charges onto the plates charging them the energy in the plates is due to the fact we have concentrated the charges producing a stronger electric field. However if we discharge the first plates into a second set of equal sized plates the charge concentration is now 1/2 because the surface area of the plates is now double. That is, when the charges spread out over both sets of plates they lost energy because they became less concentrated.

Your thought experiment in one I have done many real experiments on called the "two capacitor paradox".
https://en.wikipedia.org/wiki/Two_capacitor_paradox

You can have a 2nd set of plates attract each other however in transferring the charges to the 2nd plates energy is lost. As it turns out the energy lost in the plates would be similar to that gained when the plates attracted each other so we have not gained anything. Nature is very tricky in this respect and always tries to balance everything out in some way.

Regards
AC

ckreol1:
Capacitors are fascinating to o me, too.


Id love to know the relevant equations to answer the questions on the third image. Then I could see how changing the source capacitance would affect the rest of the system, for example.


I’ve done charge recovery using silicon switching to efficiently drive a piezo. It works very well.

ckreol1:
I'm going to watch this video. It blew me away the first time I watched it. It speaks to the energy in electrostatic systems: Lec 07: Capacitance and Field Energy | 8.02 Electricity and Magnetism, Spring 2002 (Walter Lewin) - YouTube


Then I'll try to figure out the equations affecting the system I proposed.


Thanks for your replies.

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