More testing today.
Here is some test data:
11 turns primary 2x
11 turns secondary 2x
Both 22 awg wire.
SCE stands for Series Cell Equal, so input current * (input voltage / 2)
This setup is just AC circulating in the secondary, no cell, no bridge.
Input V Input I Output V Output I Secondary Cap (uf) Res. Freq.(khz) Input Power(W) SCE* @ 2 V/Cell (I)
25 0.5 62 1.28 0.1 16 12.5 6
25 1.1 72.5 4.78 1.2 7.5 27.5 13.2
25 1.6 75.4 6.86 2.3 5.6 40 19.2
25 1.9 75 8.75 3.4 na 47.5 22.8
25 2.4 73 11 4.5 4.7 60 28.8
25 3.9 71.2 15.3 6.7 4.4 97.5 46.8
50 1.5 124 2.48 0.1 16 75 37.5
50 2.3 131 12.3 1.2 9.3 115 57.5
50 4.3 131 20 + 2.3 8.5 215 107.5
So as the chart shows I am no where near what a series equivalent circuit will do. While the secondary circulating power is great, some cases above 1000 watts, the circulating current remains lower than a series cell equivalent.
The next set of tests was to add the full wave bridge to the setup:
For this I used the 2.3uf cap on the secondary for testing.
Connected Input V Input I Output I Output V
Nothing 25 1.6 6.86 75
Bridge 25 2 5.8 77
Bridge & Cell 25 2.6 5.6 75
Bridge & Cell 40 4.2 9.7 108
So the full wave bridge looses 1 amp on the secondary and adds about 1/2 amp to the primary.
Adding the Cell looses 0.2 amp to the secondary and adds 0.6 amps to the primary.
I bypassed the cell to verify it was not wire resistance (to the cell) causing the drop.
I tried heating the water as well with the same results.
Remember this is highly conductive water with lots of KOH added.
My next step was to plot the losses against several cell and compare again to the series cell equivalent.
Cells Input I Input V Series Equ. Sec. Single I Sec. Series I
1 2.6 25 31.2 5.6 5.6
2 3.2 25 38.4 5.4 10.8
3 3.8 25 45.6 5.2 15.6
4 4.4 25 52.8 5.0 20
5 5 25 60 4.8 24
6 5.6 25 67.2 4.6 27.6
7 6.2 25 74.4 4.4 30.8
8 6.8 25 81.6 4.2 33.6
9 7.4 25 88.8 4.0 36
10 8 25 96 3.8 38
1 4.2 40 84 9.7 9.7
As you can see from this predicted graph, based on above data, the series resonance circuit will not overcome the efficiency of a simple DC series circuit.
Part of this power loss is from these areas: Driver circuit, X former core, Bridge, Skin affect from frequency.
The losses at the cell are omitted as they would be equal on both setup's.
The one positive on this circuit is you can put any electrolyte in the water, any amount and it runs the same. You can completely short out the cell and still have the system operate - just no gas production.
In this setup my cell was 2 switch cover plates made of SS material. The spacing was 0.005 inch with highly conductive water.
I also tried a step up and step down x former again. The step up reflected the resistance to the primary and multiplied the primary current by the step up factor.
The step down x former showed the same results as the equal x former design.