Distance between postive and negative in cells

[techartguy]

Yep, gonna extend the tubes outside the container so I'll go on your advice about using the threaded nuts and or a compression fitting, maybe something like the overflow bulkheads I have on my aquariums, just very small. The outer tubes will be the easier ones to keep in place, the inner will pose issues, hopefully the way they get secured and sealed in the bottom will keep them still enough. I was thinking about using a dc-dc power supply to step down the voltage to at least 3.3v ( the lowest I've found pre-made ) but only has a max rated of 8 amps. Draw is certainly going to be an issue, the batt I have on the bike is a 9 Ah, with the gen being 400W at 5k rpm. Though I converted all the bulbs to led based ones and a pair of hid ballast/bulbs for my headlights. Doing that shaved off 145.7 watts off the stock filament bulb setup so I have a little more breathing room, but not much compared to a car or any other vehicle with a larger supply. So 12.25 amps at 12v or 44.15 amps at 3.3? Either way it seems like alot of draw even if I'm just filling in the gap with something else. I was going to make the bubbler part taller but not so much the cell part. I watched a video on youtube with someone dissipating the finer bubbles floating around in the cell into larger ones that rose to the surface using a pond fogger, http://youtube.com/watch?v=6hVRmVtiprc. I see the owner of this site made a comment about it too on the same vid, haven't looked for the thread or post on it here yet. I have a very small fogger unit I salvaged from one of those frosted table decoration things that change colors. At any rate a good bit of toying around on the bench per your suggestions is needed.

[techartguy]

Your drawing looks very similar to a fellow testers device named H2OPOWER on this forum. Here is a video of one of his setups. http://www.youtube.com/watch?v=KJPE6d2R9uo

Oh cool, I hadn't seen that one yet. I'll have to look him up on here. Thanks for the link 

[Mr Green]

I watched a video on youtube with someone dissipating the finer bubbles floating around in the cell into larger ones that rose to the surface using a pond fogger, http://youtube.com/watch?v=6hVRmVtiprc. I see the owner of this site made a comment about it too on the same vid, haven't looked for the thread or post on it here yet. I have a very small fogger unit I salvaged from one of those frosted table decoration things that change colors. At any rate a good bit of toying around on the bench per your suggestions is needed.

very interesting approach from sirHoax i haven't seen that video . i don't exactly know how the ultrasonic fogger does and how it works. i think what it does is sending a small current but with a specific frequency and practical vibrates the water molecules. But also vibrates the plates (which might be good) i will try to find out if it improves the production or not . i tried with an underwater pump to create a flow that can carry out  the bubbles to the surface but it was the same production.

GoGreen !

[techartguy]

A fogger like that one works by sending a voltage through a piezo element which causes the element to vibrate at a particular frequency thus creating vibrations in the water.

Here's a small excerpt from wikipedia about how a humidifier using an element works, pretty much the same way about pond foggers just with a fan:

"The ultrasonic humidifier, one type of nebulizer (a device that creates a very fine spray), is a popular type of humidifier. It works by vibrating a metal plate at ultrasonic frequencies to nebulize (sometimes incorrectly called "atomize") the water. Because the water is not heated for evaporation, it produces a cool mist. The ultrasonic pressure waves nebulize not only the water but also materials in the water including calcium, other minerals, viruses, fungi, bacteria[21], and other impurities. Illness caused by impurities that reside in a humidifier's reservoir fall under the heading of "Humidifier Fever".

I'll take mine apart to see if that's the case on how it's creating the mist..

[HeairBear]

Mr. Green,

     You made an observation that is interesting. Although you where flowing water through your cell you did not see an increase in bubbles/gas. I am curious as to what you concluded as to why that is. Are you having any problems with bubbles sticking to the electrodes? Have you tried increasing the voltage to 120V or so to see if bubbles would hinder gas production? It's great the way you tested to see how flow effects the cell. Thanx for your info!

I think this thread has created a problem that doesn't exist. The closer the electrodes the better. Do not worry about bubbles and if they might cause less gas. I have never had that problem and I can get them damn close. The problem is heating and amperage. If you can lower either one successfully, you have a winner.