Removing bubbles

[wizkycho]

I have done some electrolysis experiments with promising results.
Currently I'm building 6V cell which is capable of drawing 40A which is "only" 240W generating a lot of
H2 O2 gas mixture. Type of cell is stainless stell plates, 24 pieces arranged "+, -, +, - ,...".
Till now I haven't seen any reports of ammount of H2 O2 released with these current, nor amount of watter
dissociated per hour nor lenght of flame.

To make it more efficient I could endlessly add more plates in paralell and progresively lowering down the voltage to infinitely small ammount making input power ammount infinitely low with same H2 O2 production.

There is limit which I'm convinced is there because of bubbles themself . When I turn off power supply I can meassure 1.2V on + and - plates and that votage is there as there are bubbles on plates. Those bubbles actualy
makes effective surface of plates smaller and adding ressistance to cell so volatge must rise.

Can someone suggest most efficient way to quickly remove bubbles as they form.

[_GonZo_]

I do not remenber really well what you have to do exactilly if reduce the surface tension of the water or encrease it, in order to get the bubles relase the surface sooner (smaller bubles)

In order to change the surface tension of the water you can add to the watter; shoap (dish wassing shoap will do really well) or alcohol.

Not fully sure but if not remenber badly, shoap encreases water surface tension and alchol reduces it.

It is cheap so you always can test both ways...

[pg46]

Hi  wizkycho -

Interesting cell you have made. Some people have used a small water pump to circulate the solution to help remove the bubbles. Some have pumped air in through the water as part of their system for use in an ICE like as in the Archie Blue designs. I have heard mentioned the use of ultra sound(vibration) also.
Have you made any gas production measurements yet?
I look forward to hearing more about your cell project.

[hartiberlin]

Use an ultrasonic fog bubbler.
Then there will be no H2 gas bubbles sticking anymore to your plates !
Very effective ! Also the water will stay very clean this way.

[RonS]

Stefan, I just joined your group in order to save my associate some time and read this post, I have a question?

Isn't it true that gas will not form at the electrode until the ion density is at a threshold point at which time the bubbles will break free and that stiring or otherwise mixing of the water will disrupt the ionic flow and slow the process od electrolysis?