dg2010
05-23-2010, 12:23 PM
Wonder if someone can help me with my falling gas production.
Firstly the cell details
Construction is 316
Cell layout -5N+5N-
Exposed plate area is 5 1/8" square
Alternate 1/2" holes at the bottom
3/8" holes top centre in line
3mm nitrile gaskets
When I bench tested this with a friend using a PWM it produced 3lt/min at 14v and 20 amps. 28% concentrate KOH.
Put it into my car without a PWM and reduced the concentrate to around 15% - maybe a bit more. It pulled 20 amps like this and just assume it would produce the same.
Last week I tried to install a PWM but first did a bottle test to see where I was and found it was only producing a litre in 45 secs so didn't bother with fitting a PWM.
Yesterday I was doing some more testing and found that it has now dropped to 1 litre in 55 secs. This was after some 60 miles during last week.
I am puzzled - would welcome some advice
Firstly the cell details
Construction is 316
Cell layout -5N+5N-
Exposed plate area is 5 1/8" square
Alternate 1/2" holes at the bottom
3/8" holes top centre in line
3mm nitrile gaskets
When I bench tested this with a friend using a PWM it produced 3lt/min at 14v and 20 amps. 28% concentrate KOH.
Put it into my car without a PWM and reduced the concentrate to around 15% - maybe a bit more. It pulled 20 amps like this and just assume it would produce the same.
Last week I tried to install a PWM but first did a bottle test to see where I was and found it was only producing a litre in 45 secs so didn't bother with fitting a PWM.
Yesterday I was doing some more testing and found that it has now dropped to 1 litre in 55 secs. This was after some 60 miles during last week.
I am puzzled - would welcome some advice