HHO Cell Pressure

[Philldpapill]

Just curious - what kind of pressures do you think your HHO cell can handle? I'm making a digital gas flow meter(screw the bottle method), but the only catch, is that it might produce up to 3 or 4psi at high gas outputs, less pressure at lower outputs. This is due to the way the meter measures airflow - measuring the pressure drop across a small orifice as gas flows through it.

I've got the meter working pretty well, but I'd like to make sure other people's HHO cells can handle the slight pressure. So, has anyone ever tested their HHO cell for pressure? I'd think most fairly good quality cells can handle 10psi without problems, but I just want to make sure.

[H2OPWR]

Just curious - what kind of pressures do you think your HHO cell can handle? I'm making a digital gas flow meter(screw the bottle method), but the only catch, is that it might produce up to 3 or 4psi at high gas outputs, less pressure at lower outputs. This is due to the way the meter measures airflow - measuring the pressure drop across a small orifice as gas flows through it.

I've got the meter working pretty well, but I'd like to make sure other people's HHO cells can handle the slight pressure. So, has anyone ever tested their HHO cell for pressure? I'd think most fairly good quality cells can handle 10psi without problems, but I just want to make sure.

It is fairly easy to get a cell to handle some pressure. Most good dry cells will take 30 PSI easily. I have had my Nickel much higher than that. If a cell could not handle at least 10 PSI than the design needs improvement.

Larry

[Roland Jacques]

It is fairly easy to get a cell to handle some pressure. Most good dry cells will take 30 PSI easily. I have had my Nickel much higher than that. If a cell could not handle at least 10 PSI than the design needs improvement.

Larry

Yep yep,

Even crapy cells could handle 10 PSI

[richard_lyew]

i am going to opposite, im vacuuming my whole system, cell and all. ima make a new thread soon, it will bring something new to the HHO world. i wanted to finish it for christmas but its now 10:52pm where im at and i dont think i will get to finish it tonight so it will be after christmas but look out for my next thread. have a very merry Christmas everybody!!! :D

[astrocady]

I am sure my system could withstand several PSI of pressure, but I would NOT want to do so. Here's why.

Hydrogen is the tiniest of all elements, and it can find a leak faster than a pretty girl runs away from me. I want all my hydrogen going into my engine.

[Philldpapill]

Richard,
You can go ahead and do your vacuum system idea, but you will be getting large amounts of water vapor. If that's your intention, then it sounds great.

However, I'm wanting to know about other people's positive pressure systems.

@astrocady - You're right. This is one of the big obstacles to storing pressurized hydrogen. I think the term for it is "hydrogen embrittlement". This is what happens when you pressurize hydrogen gas in a medal container - the hydrogen tends to wedge itself inside the metal crystal lattice, then when the pressure is lowered, the gas tries to expand, and acts sort of like ice cracking rock. In short, it can severely weaken the container and cause it to fail later on down the road. However, I'm not talking about anything NEAR the pressures that would cause that. I'm thinking maybe 5psi absolute maximum, so I hope it won't be a problem.