8 Plate series cell (Kumaran)

[kumaran]

(Click on image to view larger version)

Plastic container cover (top).

[kumaran]

(Click on image to view larger version)

Fittings completed.

[kumaran]

(Click on image to view larger version)

Cell in action. Look at the bubbles.

[kumaran]

(Click on image to view larger version)

Meter readings. As for test results, wait till I come back after lunch.

[kumaran]

Here are the test results.

Test setup

Cell design : 8 plate (6â€

[herby53]

Hi kumaran,
I got a question why did you put it in such a big container? the big container needs a lto of gas inside before anyhtings comes outside and is after my expirience where dangers to have such a big container with hydroxy and probably slows the production rate down.
The results are not bad but you probably can get more out of it because you got allready a big plate area with 6x6.
just a suggestion, I would make the container as small as possible the the hydroxy can only go up and out.
greetings
walt


[quote="kumaran"]Here are the test results.

Test setup

Cell design : 8 plate (6â€

[thirsty]

Hi,

Your getting some impressive effiency figures from that cell.

The big container also makes me wonder. When the whole bucket fills with hydroxy it would be very dangerous. With a good bubbler and some care the risk could be minimised but that is a lot of hydroxy siting in a confined space. Maybe you could seal the outside of the cell and fill the container with water so that there is less volume to fill with gas? Does the top of the container pop off?

I have a similar series cell with an open top and pressed design. I was planning to do the same thing as you and put it into a container but I thought of a different solution when I saw some electronic circuit cases made out of plastic. They are sodild construction and some have air tight seals. I positioned the cell to sit above the press. I cut the bottom of the box out. I put the box over the top of the cell and glied it down with heaos of silicone. A picture tells 1000 words so heres a few thousand words on what i mean.



This is the smallest box that would sit over my cell. I would have prefered a slimmer box to reduce the volume even more. I will update my project pages when I have finished building and tested flow.

How clean is the cell running?

Have you tested to find the optimum electrolyte strengh?

30% seems higher than what alot of people are using, maybe there is better efficiency at a lower electolyte strength.

Good luck.

[glenn_aircooled]

Kumaran, the maximum % KOH should be 28 %. You will probably do even better when you set this.
Well Done, marvellous results, I am envious. I cant get that good yet.
I think I still have leaks. The big container you have used is
solving that for you.

[kumaran]

[kumaran]

[kumaran]

[slipstreem11]

[kumaran]

[slipstreem11]

[kumaran]