Kirkg

Hydroxy gas (Brown's gas) is made by passing water between stainless steel plates and pulsing it with DC current. Most research indicates that the most efficient electrolysis happens at the resonance frequency of water, which is reported at approximately 42KHz. I have constructed a cell out of ss and need a circuit. There are many published circuits, but it is hard for the layman (me) to pick and build the right one. Most researchers say the voltage does the work in the right circuit. Anyone want to try helping this electronic dunce get a circuit built? I will build a cell (not easy) for the right researcher and we can experiment together. Kirkg

Hero999

Well that's not true, water's lowest resonance is around 28GHz (I can't recall the exact figure) which is a lot higher than you can produce using conventional components like transistors, capacitors and resistors.

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HarveyH42

Doesn't a microwave oven have something to do with water molecules and frequency? Perhaps you could gut an old microwave... Just kidding, it's instant death underneath the cover. I replaced my old oven about a month ago, and still haven't the courage to bust it open.

chemelec

I Don't Believe EITHER Of these.
Definately Not 42 Khz. Most of these guys Use Inductors and are Obtaining a Resonance in the Inductor, Not the water.

And at 28 GHz, it would be next to impossible to pass that current through the water. You would need a Very Unusual Wave Guide.

But Resonance is Typically a function of "Mass, Density and Volume". So I really doubt there is a Specific resonant frequency for water.

And if there is, Its Probably Sub-Audio. (Far Below 20 Hz, probably far below 1 Hz.)

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HarveyH42

Maybe this will help...

http://www.madsci.org/posts/archives...2107.Ph.r.html

Seems there is no single answer to the frequency question, kind of makes sense though. Water can be solid, liquid, or gas...

jpanhalt

I think Hero999 is refering to the rotational/translational absorptions of water in the far infrared.

See: http://en.wikipedia.org/wiki/Microwave_oven

Microwave heating essentially is frictional. Rotational and translational transitions are at higher frequencies; although, I could not find quickly a specific reference to the lowest rotational/translational transition for water in the condensed phase. It does absorb IR pretty strongly at 300 GHz (1 mm). Wikipedia reports the absorption at 20GHz is due to a rotational transition in the gas phase.

The OP seems to be talking about the alignment of water dipoles in an electric field. For that, you would need to know the strength of the field (by analogy to NMR) to estimate the energy needed. Unfortunately, so much bunk pops up on a Google search that one would have to be more dedicated than I am to finding the real answer. John

ClydeCrashKop

Check out this forum http://oupower.com

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Kirkg

Thanks for the input. Yes, most interesting the resonance of molecules. I was thinking on a more mundane level. People are getting very efficient electrolysis by pulsing DC in a cell. The observed frequency of high production seems to be about 42KHz with a perfect square wave. With or without inductors, and a LRC resonance circuit, I don't know. I would sincerely like help testing different circuits, and have a budget with which to do it. I would like to hook up with a super Geek who would find this fun. Isn't a pulsing DC circuit with MOSFETs and about 12V and 200 amp maximum within the realm of possibility? The water is positively fed through the cell so it won't heat.

chemelec

200 AMPS, NOT VERY LIKELY.

Getting that amount of Current would be Difficult and You will create too Much Heat.
20 Amps or Maybe 30 in a car is practical.

I have also NEVER seen any Resonant circuit for this, WITHOUT INDUCTORS.

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skeeterb

I myself post on http://www.overunity.com. I have attached a circuit diagram of an improved version of the circuit supposedly designed by Stanley Meyer. It pulses the the power input at different rates using a 555 timer IC. Different settings like Frequency and Mark/Space are changable by 10K Pots. I'm not sure of the portion of the circuit on the left of the circuit. It is another part of the settings, I guess. But see what you think and try it.

Attached Images

ImprovedDD14Circuit.jpg (82.0 KB, 46 views)

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chemelec

It does no better than DC.

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jpanhalt

The "right" side provides the basic pulse frequency. The "left side" turns that pulse train on and off (i.e., modulates it). Is that what you are not sure of, or was it something else? John

Hero999

Microwaves use 2.45GHz as it achieves the optimum skin depth of penetration, is a convenient wavelength for the wave guides in the oven and is licence free. It has absolutely nothing to do with the resonance of water molecules which is a very common myth.

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Kirkg

For Chemelec; the cell has positive water flow, and can be up to 10 gallons per minute, that should cool the 15 or so horsepower. For Skeeterb; good, let's get building. I need help buying and soldering. Practical stuff so a non electronics guy could do it. The furthest I have progressed is to a Radio Shack trainer kit. The successful application I reviewed had 6 MOSFETS!!!

Kirkg

Chemelec; I forgot to address your statement. A resonant circuit is in an LRC configuration, I get that. But for the best pulse frequency of water we are agreed that we are in unknown territory. So....without an inductor can the circuit force a pulse frequency on the cell? I don't know, and believe me, I am humble because if it doesn't take nuts and bolts to hold it together, I am a newbie.