BoyntonStu
11-05-2008, 02:03 PM
I have been attempting to build the Amoeba Cell without using gaskets, end plates, and bolts by way of adhesives. The idea was good but after MANY tries, it turned out that none of the adhesives held up for long.
I tried about 10 different products including Marine Goop, Sikaflex 291, Hernon Fusion Bond, JB Weld, 2 different Hot Melt glues, and several others.
All was not wasted because the cell designs using adhesives were very easy to build and they lasted long enough to evaluate their design.
But, enough is enough!
I got a used inner tube and since I had some 2" strips of 304 SS, I decided to experiment in building a very compact gasket cell.
My past Amoeba Cells pointed me in 2 directions; use 7 cells instead of 6, and try a single 0.25 hole at the top instead of 2 holes per plate.
In addition, 1/4 - 20 bolts seemed like overkill, so I went to the 6-32 screw which requires a 0.150 clearance hole.
I used strips from a blue plastic loose leaf binder cover 0.025 thick to insulate the 14 screws from the plate edges. Why use tubing?
The first run produced 1.0 L in 116 seconds with 15.2 V and 6.2 A.
See it here:
<object width="425" height="350"> <param name="movie" value="http://www.youtube.com/v/jDQUHjxlRu8"> </param> <embed src="http://www.youtube.com/v/jDQUHjxlRu8" type="application/x-shockwave-flash" width="425" height="350"> </embed> </object>
I will help anyone interested in making an Amoeba Cell.
BoyntonStu
I tried about 10 different products including Marine Goop, Sikaflex 291, Hernon Fusion Bond, JB Weld, 2 different Hot Melt glues, and several others.
All was not wasted because the cell designs using adhesives were very easy to build and they lasted long enough to evaluate their design.
But, enough is enough!
I got a used inner tube and since I had some 2" strips of 304 SS, I decided to experiment in building a very compact gasket cell.
My past Amoeba Cells pointed me in 2 directions; use 7 cells instead of 6, and try a single 0.25 hole at the top instead of 2 holes per plate.
In addition, 1/4 - 20 bolts seemed like overkill, so I went to the 6-32 screw which requires a 0.150 clearance hole.
I used strips from a blue plastic loose leaf binder cover 0.025 thick to insulate the 14 screws from the plate edges. Why use tubing?
The first run produced 1.0 L in 116 seconds with 15.2 V and 6.2 A.
See it here:
<object width="425" height="350"> <param name="movie" value="http://www.youtube.com/v/jDQUHjxlRu8"> </param> <embed src="http://www.youtube.com/v/jDQUHjxlRu8" type="application/x-shockwave-flash" width="425" height="350"> </embed> </object>
I will help anyone interested in making an Amoeba Cell.
BoyntonStu