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This Website is Created and Maintained by chris--at--OUPower--dot--com (Fix the address for it to work!)
This Project was last updated on: October 2, 2008 12:07pm
v7.01

WARNING! Many, if not all of the projects described within these pages, contain dangerous and potentially fatal consequences if you do not exercise proper precautions and follow standard safety procedures. The owner of this site takes no responsibility for injury sustained by anyone attempting to duplicate or utilize any of the information on this site. The information here is strictly for Educational Purposes! -USE AT YOUR OWN RISK!

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WARNING:  If you attempt to use or distribute this info in any way you do so at your own risk.

Safety first!


** note:  don't know how to order the pics...so just browse around?


My first attempt at making a cell.  This is the intended wiring diagram when using 2 of these 3 plate cells in a series.  These connxs should result in 6V across the plates.

Expected pros for this design?

* runs at 6V across the plates for 2Xs the electrolysis efficiency of 12V...and less heat production

* more compact than using 4 double plate cells...though these could be set up to run at 3V between plates

cons:

* electrolyte level will need to be watched...since output will be reduced as it falls

note: apparently the polarity can be reversed so that the plate wear on the (-) plates can be shifted to what are currently the (+) plates.


The completed cell.  Just a regular canning jar with a plastic lid.

The plate area under electrolyte is intended to be around 6 sq " per plate....1.5" X 4"...and run at a max 10-12 amps.  This level would be at the top shoulder on the glass and right above the top bolts.  Plates are spaced 1/8th" apart using poly material from an H peroxide bottle.

Better to use the wide mouth qt jars and plastic lids...could use wider plates and have more room on the lid for hardware.


Shows the construction details.  304 .018" ss was used (I measure it at .020".  Nylon 10-32 bolts...10-32 ss nuts...1/32" washers made from HDPE from a hydrogen peroxide bottle.  The bolts at top are cadmium plated and are already showing corrosion after just a few hours use...though they stay tight and conduct OK.  Lid was hard to seal...using some petrojelly in the caps to help seal them.

Finding that the 304 ss deteriorates pretty fast and puts out a kind of iron oxide floating gel.  Looks like springing for 316 ss is the better bet...at least for the (-) plates.


Outer plates are +...center is -

....tested as a single cell and at 12V across plates.


Some tests using a 12V deep cycle and 6 A charger:


40F ambient  1/4 tsp baking soda  

after 1 hour - 105F...5.9 A...12.3 V


42F ambient  1/8 tsp baking soda  

after 1 hour - 96F...3.2 A...13.7 V


35F ambient  3/16 tsp baking soda   (cell was partially covered and battery posts were cleaned)

after 1 hour - 113F...6.15 A...12.8 V  

gas production = .07 L / min   < not so impressive, but reality trumps bull?

If 2 cells were used in series at 6V between plates...I'd expect maybe .25 L / min gas production at ~12 A...just a guess though.  Avoiding a runaway condition would probably be an issue with this cell...though running in series should reduce the heat some.

This cell has only around 4 hours total running time...so it might improve after more use.  I will probably use it to test out a charged water bubbler and make something else that has the potential to make more gas.


The cells almost ready to install.  Weather has moderated.

+12V connects at the right cell at the 2 bolts...then 2 wires jump from the center bolt to the 2 +12V bolts on the cell on the left...ground (-) goes off to the left from the center bolt.

On top of the left cell where the small yellow cap is...is an inlet for air at a one way valve (this valve leaks the wrong way...cap will be removed)...supposed to flow IN only.  

The 2 hoses going into the Y go to the backflow jar...then into the bubbler...then out through the hose with the yellow tape on it and to a vacuum port above the throttle plate that only pulls vac above idle.

This is supposed to be a compact design and takes up a space 7" long x 5 1/2" wide and 9" high in the engine compartment right beside the radiator.  Made a platform of from a 2 x 6 with an aluminum heat shield to protect the cells from radiator and engine heat to some extent...and to keep cooling air flowing over the cells.  This air comes from around the headlight and from the original air inlet for the engine.

Will have a remote temp monitor on one cell...a manual switch and ammeter on the dash.  "Activation" power will come from the ignition switch thru the  manual switch....to the relay.  Main power comes from the battery thru a fuse to the relay then to the cells.

If the cells get too hot or the amps too high...the plan is to shut it off and run like hell. ;-)

Last test of these 2 cells as a pair resulted in 83F cell temp on a 32F day....and 6.1 amps used at 12.1V after over an hour.  This was with 3/8 tsp NaOH in each jar.  Gas output wasn't tested.  

Notice that when 2 identical cells are set up in series with 6V between plates...the amps drawn still remain about the same as for one cell at 12V between plates.

This is about where I want to start testing it.  The cells MIGHT end up running (at 55 mph cruise on a 70F day) at around 110-120F at maybe 7-8 amps.

Proceed to another page of the fixaze Project: [<<<   <      >   >>>]

Click here to continue Drilling into Projects from fixaze

Click Here to Re-Display the Main Project Page

This Website is Created and Maintained by chris--at--OUPower--dot--com (Fix the address for it to work!)
This Project was last updated on: October 2, 2008 12:07pm
v7.01

WARNING! Many, if not all of the projects described within these pages, contain dangerous and potentially fatal consequences if you do not exercise proper precautions and follow standard safety procedures. The owner of this site takes no responsibility for injury sustained by anyone attempting to duplicate or utilize any of the information on this site. The information here is strictly for Educational Purposes! -USE AT YOUR OWN RISK!

Click Here to go to my YouTube Channel!!

Click Here to go to our NEW Facebook Discussion Group! This is replacing the old Discussion Board!

Click Here to go to our ARCHIVED Discussion Boards.

Please consider donating to help support this website!