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Gas production time. HighVoltage vs LowVoltage SameCurrent

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warj1990:
I wanted to test gas production time for 2 setups:

This is using my 5.5 inch long tubes (lost 1/2 inch resealing the base area).
3/4 outside tube and 1/2 inch inside tube.

I marked a pop bottle at 120 cc from the top.  Cut the bottom off and slid this into my tube cell array.
I loosened the cap and allowed the bottle to fill with water.
As the gas is produced it displaces the water.  When the gas reached the line of 120cc I stopped the timer and test.

Setup 1 is natural water.
Rectified mains voltage, no filter cap.
Input was 130 volts @ 5.8 amps.
Gas production time: 1:44 seconds

Setup 2 is same natural water with KOH added.
Rectified mains voltage, no filter cap.
Input was 2.2 volts @ 5.85 amps.
Gas production time: 1:45 seconds.

This concludes current is still the key in gas production - regardless of voltage.

I have not added chokes and pulsing signals to these tests (as of yet).

Higher voltage is showing larger bubble production, the rate is still the same.

CrazyEwok:
The use of voltage in your test is only valid if you are using it to move the current from one plate to the other, some things your have failed to mention is gap between the plates, water temp, water purity etc etc.
You will note that the following if you test them.
130V test
Temperature of water increased relatively rapidly
Gap between plates can be increased with no loss to gas production, bubbles get smaller.
If allowed to run for "X" period thermal runaway begins.


2.2V Test
Temperature in water increased slowly
Gap between plates can not be increased with no loss to gas production, bubbles get smaller till production stops.
Cells will reach thermal runaway after "X" period


Your explanation while holds some ideas for people doesn't really show things as conclusive as you think. Try putting approx 50kv per mm of cell gap into your cell. I suggest you use picoamps as sparking in the cell while the reaction takes place can be dangerous.

warj1990:

Water purity: drinkable, from kitchen sink to cell.  No smell of chlorine in the water, City water, processed.
Cell spacing is 1/8th inch.


For you 3.175 mm spacing.
130 volts / 3.175 mm = 40.945 volts / mm


At this spacing the cell is drawing 5.8 amps.


You suggest 50,000 volts / mm
Lets assume the water resistance remains constant at 33.3 ohms (which by my current tests it does not)
The voltage of 158,750 volts (50 kv * 3.175) needs to be applied to get the 50 kv / mm.


158,750 volts / 33.3 ohms = 4,767 amps.
I really didn't want to buy a power plant for this experiment.


How am I to get mili amps across the cell and keep the voltage high?  When the high Voltage pulse hits the water, 159 kv,  it will NEVER rise above the losses in the ampdraw. This high voltage at mili amps will read at the cell about 10 volts.
 
If I applied 158,750 volts to the cell at 5.85 amps  I would read 120 volts across the cell.


You are saying I can produce 120 cc of gas with a larger spacing in the same time? I have 4 tubes I will connect to each outside tube with 3/4 to 5/8 inch spacing.  Be right back with that experiment.

warj1990:
Ok did the next test.


Outside of both outer tubes, spacing about 3/4 inch.


130 volts @ 1.5 amps.
at 3 min 2 amps
at 4 min 2.16 amps


at 4:31 seconds I produced 120 cc of H2 and O2 combined gasses.


Gas production did diminish.

Lektor:

--- Quote from: CrazyEwok on July 18, 2011, 06:40:07 am ---Try putting approx 50kv per mm of cell gap into your cell. I suggest you use picoamps as sparking in the cell while the reaction takes place can be dangerous.

--- End quote ---
really interesting. could you give some more infos on that? where did you get these numbers from. I agree that the field strenght should be high via voltage and the current should be as low as possible. Do you have any setups or circuits to show ?

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