Here is an advanced Bubbler design, it currently is untested as far as I know. So if you try it, or have used it let us know how it works.
Click on pic to download and save as pdf, right click and save as jpg.
Heres the way I modified tank, drilled 2 holes, top and bottom, cut pvc pipe 1 1/2 dia to fit inside tank and drilled holes 3/4″ up the lower end, positioned it and glued hose adapters to each end, sealed the pipe to tank with epoxy, then silicon, and screwed hose/1/4″ tubing adapter to it. the hose to tubing adapter seal with a rubber o’ring.
Now the catalyst flows to the cell, the bubbles return (pumping fluid) to the bubbler portion, the gas continues up to the output hose, the catalyst returns. Eliminates excess gas being stored, sloshing doesnt affect gas outflow, and is simple to build.
Quick modified refill tank
Filed under: Flashback device | Tagged: bubbler, bubbler design, flashback, Flashback device
Pressure from the reservoir will force water down to the generator and fill it up as any gas in it will be pushed up to the bubbler causing it to level with the reservoir.
The bubbler should not hold much HHO gas for safety reasons.the level should be keep fairly constant. You might also like to put in a baffle to keep fluids from sloshing down the line. Maybe there is a liquid that doesn’t evaporate readily at the temperatures likely to be working with and isn’t degraded by hydrogen or oxygen, if not stay with water and periodically check levels and change if becomes it become dirty
A problem with circulating water from large reservoir and generator is heating all the contents which leads to low production early until contents warm up, and waisted energy thereafter. You might like to keep the bottom feed and remove the top feed or if you must cycle the contents e.g. your using an electrolyte and don’t want it to get too concentrated, make sure that circulation is minimal.
In summery I don’t think its a good idea to cycle the contents though the reservoir to either the generator or the bubbler
A baffle in the tank makes sense. The flow rate, I just found out, does make a difference, using a dry cell for testing, I just found that at 6″ above the cell amps dropped about 1/3 as bubbles blocked the upper 1/3 of the cell ( I put clear plexi for observation), raising the tank reduced the blockage and amps went up as did production. in my small test cell 6″ was moving 200ml/m when running, 20″ moved 600ml/m and increased output by 1/3.
The problem of gas at the top of the bubbler/reservoir still need a better solution other than maintaining a high water level such as a bubbler inside a reservoir restricting gas to the bubbler but allowing water to flow out. Even then finely bubbled/saturated water would create gas in the reservoir too.
As for the heat build up, these dry cells seem to run cooler overall because of the massive fluids and almost no voltage leaking, but will eventually warm up on longer usage.
The concentration can be combated with a secondary reservoir that is auto filling the 1st.