maztra
12-15-2009, 02:25 PM
My name is Bart and i'm from the Netherlands. Since a few months i'm into the hydrogen. Here are my findings so far.
Here is my third attempt. It's a wet series cel with 6 plates. (i intended to do 7 plates, but i forgot to put a 7th plate in...)
http://i3.photobucket.com/albums/y96/matramurena/IMG_4744-640.jpg
This is submerged completely in water and soda. To block current leakage, i closed the sides and bottom with some kind of resin cement. Testing this cel showed very little bubbles from within the cells. So i increased the amount of soda. Still very little bubbles within the cells, but i was getting more bubbles from the outside of both outher plates. It seemed like most the current was traveling around the cel???.
Then i coated the outher survices with polyester resin. But when i was testing this, the resin was coming loose. It seemed like hydrogen was still produced under the coating, and working the coating loose.
I needed better coating.
Here is my third attempt. It's a wet series cel with 7 plates. completely submerged in water and NaoH.
http://i3.photobucket.com/albums/y96/matramurena/IMG_4747-640.jpg
http://i3.photobucket.com/albums/y96/matramurena/IMG_4746-640.jpg
To prevent current leakage, i did some clever things. (disclaimer: personal opinion). I got some poly-urethane resin. I made two trays to close the sides. I poured some resin in a tray, put 7 plates upright in it, and let it set. Same for the other side.
To prevent current leakage around the tops and bottoms of the plates, i made a bath with about 1/2 inch of resin. Then i dipped the top and bottom in the resin. That way top and bottom 1/2 inch is coated in resin. So if the current wants to leave a cell, it has to travel through 1/2 inch water before it is beyond the plates.
The outsides of the outher plates are coated in resin. And i made two stainless strips for power supply to the cell. These strips are also coated.
Testing showed more bubbles at the exposed nuts of the strips, than in the cells. I solved that by covering the nuts in silicon sealant. Then i noticed that the resin was coming loose from the outher plates......:(
My conclusion: current leakage is very bad for the efficiency of a series cell, and it is very very hard to prevent current leakage.
Then i learned about dry cells. It seems to be an ideal design in terms of current leakage, but there are holes in the plates. So there's the leakage again.
Here is my third attempt. It's a wet series cel with 6 plates. (i intended to do 7 plates, but i forgot to put a 7th plate in...)
http://i3.photobucket.com/albums/y96/matramurena/IMG_4744-640.jpg
This is submerged completely in water and soda. To block current leakage, i closed the sides and bottom with some kind of resin cement. Testing this cel showed very little bubbles from within the cells. So i increased the amount of soda. Still very little bubbles within the cells, but i was getting more bubbles from the outside of both outher plates. It seemed like most the current was traveling around the cel???.
Then i coated the outher survices with polyester resin. But when i was testing this, the resin was coming loose. It seemed like hydrogen was still produced under the coating, and working the coating loose.
I needed better coating.
Here is my third attempt. It's a wet series cel with 7 plates. completely submerged in water and NaoH.
http://i3.photobucket.com/albums/y96/matramurena/IMG_4747-640.jpg
http://i3.photobucket.com/albums/y96/matramurena/IMG_4746-640.jpg
To prevent current leakage, i did some clever things. (disclaimer: personal opinion). I got some poly-urethane resin. I made two trays to close the sides. I poured some resin in a tray, put 7 plates upright in it, and let it set. Same for the other side.
To prevent current leakage around the tops and bottoms of the plates, i made a bath with about 1/2 inch of resin. Then i dipped the top and bottom in the resin. That way top and bottom 1/2 inch is coated in resin. So if the current wants to leave a cell, it has to travel through 1/2 inch water before it is beyond the plates.
The outsides of the outher plates are coated in resin. And i made two stainless strips for power supply to the cell. These strips are also coated.
Testing showed more bubbles at the exposed nuts of the strips, than in the cells. I solved that by covering the nuts in silicon sealant. Then i noticed that the resin was coming loose from the outher plates......:(
My conclusion: current leakage is very bad for the efficiency of a series cell, and it is very very hard to prevent current leakage.
Then i learned about dry cells. It seems to be an ideal design in terms of current leakage, but there are holes in the plates. So there's the leakage again.