maximum brute force cell design!

[ashtweth]

Exert out of the new course. Thanks to Larry, Bob and Jeff.

RapidShare: Easy Filehosting
CAD drawings coming, soon as i find some one who can do them

3LPM at 15amps



Ash

[Vulcan]

Thats pretty far for the plate spacing, no?

[Guest]

Drawings

Did i hear CAD?

As soon as I finish up tech drawings on Wouters cell I could also draw those for you if you wanted...

[ashtweth]

The difference is Alex is actually talented at doing these drawings, dam six sense

Vulcan, i think he is using the optimal spacing, i.e. 2 x 7 series cells in parallel. I just got this form Wouter.

The reason why they do that is to decrease the current density resulting in an increase in efficiency. They also do this because a single 7 series cell on its own, as we know by now, uses 6-7 times more KOH than the 6 series cell equivalent and by placing 2 x 7 in parallel, one now gets double the amount of amps for the same electrolyte strength.

So, without doubt a 2 x 7 series cell will be more efficient than a single tubular 6 series cell BUT one must remember that the 2 x 7 series cells uses DOUBLE the amount of plates i.e. double the amount of s/steel..
While the stainless steel plates/tubes are the most expensive component of the cell, a 2 x 7 cell will be almost double the cost than a single 7 cell.

As I always say, we should compare apples with apples! Thus one should compare the performance AND COST and electrolyte strength of 2 x 6 series tubular cells in parallel with the performance, cost and electrolyte strength of a 15 plate cell for a valid comparison.

So thats why I always say, the 6 series tubular cell is still the best compromise between COST AND EFFICIENCY!- end Wouter

Ash

[ashtweth]

http://www.panaceauniversity.org/15_...center_tap.pdf
CAD coming soon