how bad is it to position plates horizontally vs vertically?

[needanswer]

I plan to use a 3" diameter pipe for the container of my cell and use 2.5" diameter disks for electrodes. The plates would be sitting horizontally.
( I see most designs have plates that are vertical, this seems to facilitate gas to travel up)

would the gas be stuck on the flat lying plates and insulate the plate from good current flow?

this will be in a car; would the regular road vibration shake the water enough to prevent this?

should the top plate be positive or negative?
I think more gas would be stuck on top , so should the bottom plate be negative to favor more H output?

thanks

[Bob Boyce]

[needanswer]

[needanswer]

[Bob Boyce]

[needanswer]

bob,

sorry for being a obtuse newbie, but what do you mean by spacing variation?

I thought the disks will be evenly spaced. Do you mean the close space between the nuts/rods and their oppositely charged plates?

if so, I'll insulate them with some tubes so that only disk surfaces are conducting (not rods and nuts).

thanks for being patient.

[glenn_aircooled]

[thrival]

[CJMOSS]

[Bart West-VL.]

[Bob Boyce]

[needanswer]

[Bob Boyce]

[AntDavison]

[CJMOSS]

Bob, I think I understand. If the negative electrode is 60 sq. in. and the positive electode is 9.8 sq. in. [1.25" dia. = 2.45 sq.in.(considering both sides of the washers), times 4 washers].

Then 60 sq. in. + 10 sq. in.= 70 sq. inches. Next, 70 sq.in. /2 = 35 sq.inches. 35 sq inches x 0.25 Amps/sq.in.= 8.75 amps. Seems to jive with the less than 10 amp reading on the guage. Two (2) cells in series is about 4.4 amps draw.

Although, it nags me the relation is 60 sq in x 10 sq in = X square root or 24.5 sq in.
thanks in advance