Author Topic: 16 plates cell project by Kumaran  (Read 18310 times)

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kumaran

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Re: 16 plates cell project by Kumaran
« Reply #16 on: December 19, 2007, 03:02:40 am »
Hi guys,

I have complete breadboarded the 3PH PWM circuit. Will put the circuit for test today and report the results on Friday. Yesterday, my friend gave me his DC servo motor (ferrite core). I could control speed of the motor with variac and FWBR. Now, got to find a way to mount motor and alternator. Will let you know onces done. Too many things to do.

kumaran

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Re: 16 plates cell project by Kumaran
« Reply #17 on: December 21, 2007, 03:50:06 am »
Hi guys,

I did experiment with 3 channel circuits yesterday. I use three different type of inductors. First inductor is from 12V:230V transformer. For second and third inductors, I use homemade inductor (not sure about number of turns).

I place manual switch in between PWM and Mosfet as a control. Turn all switches off. Turn on power for circuit. Turn on switch for first channel and adjust the PW and frequency until the output amps shows 1A and repeat the step for remaining two other channels.

I'm using 36V to drive mosfets and 12V to power PWM. By suppose if all the channel turned on the output power should be 3A but in real the ammeter shows 1.7A (output). Input amps shows 0.4A. Voltage across electrolyser shows 3V. The bubble formation looks different compared to earlier. I could see three different size of bubbles when all three channel is on. For this test I use pure tap water and wondering what could happen if I add some electrolyte (KOH) into this water.

I reset back all the channel settings. Add some electrolyte into tap water. Turned on first channel and tune until the meter shows 1A (output). Same settings for the rest. Now, onces I turned on all the channels, I see the output amps shows 2A while input amps shows 0.3A. The voltage across electrolyser shows 2V. This is better result compared to previous testing.

From these experiment, I find that adding electrolyte produce better result. Happy testing and Merry Christmas everybody.

hydro

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Re: 16 plates cell project by Kumaran
« Reply #18 on: December 21, 2007, 04:52:01 am »
yes, and later when you learn more you can see i need no electrolyte, my cell is the same as a 1 ohm resistor :)

so when you get the electronics up to par, you no longer need salt or koh, merry christmas and ho ho ho lol

kumaran

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Re: 16 plates cell project by Kumaran
« Reply #19 on: December 24, 2007, 04:18:53 am »
Hi Hydrocars,

As requested by you, I have attached the modified Bedini SSG for electrolysis. The neon bulb is very important to protect mosfet in case the output is not attached to any load (cell).

hydro

  • Guest
Re: 16 plates cell project by Kumaran
« Reply #20 on: December 24, 2007, 07:48:57 am »
stevie 3 of these circuits is ideal.... great job kumaran...

stevie post that 3 phase circuit if you have it...

kumaran

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Re: 16 plates cell project by Kumaran
« Reply #21 on: December 24, 2007, 08:08:29 am »
Hi Hydrocars,

stevie 3 of these circuits is ideal.... great job kumaran...

stevie post that 3 phase circuit if you have it...

Thanks. Please help to post the 3 phase circuit. I have some idea on using additional inductor for alternator once motor & alternator setup complete. Just wanna check if Steve's 3 phase circuit is similar to my idea or not.

hydro

  • Guest
Re: 16 plates cell project by Kumaran
« Reply #22 on: December 24, 2007, 08:32:18 am »
welp, that there be a glitch in ya circuit kurmaran, but didn't want to point it out just yet... thats a very nice circuit indeed you got there!!!!

well anyhow, when you only pulse one side of the coil, the output is not like a sine wave, it is only half of a sine wave.

so you can see it charge up and bend over, but the discharge will drop fast off that inductor you got there. so what needs to be done is you gonna have to get that other side of the sine thats lost threw the coil discharge time. to do this, you pulse the coil both ways! this way you have a true sine wave!

ya see, when the coil charges, that half of the sine wave is good, but the cell dont use that half.....

when the coil discharges, this is the half the cell see's, and that half is not half a sine wave, it looks much more like a capacitor discharge wave. this will have to be fixed for this to work they way it should.


now you get 3 of these discharge sine waves together,,, and you forcing amps in, more amps than the cell will usually take! you also got a harmonic at a particular frequency, now this is not pure dc, THATS WHY ITS SO GOOD.

its like changing the batterys very very fast, accept a battery dont have spring action like a coil!

sleep on this..
« Last Edit: December 24, 2007, 08:42:20 am by hydrocars »

kumaran

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Re: 16 plates cell project by Kumaran
« Reply #23 on: December 24, 2007, 10:07:26 am »
Hi Hydrocars,

I really don't understand your statement.::) Pulsing coil both ways produces AC and how can we use AC for cell. Confuse....

Never mind, I can learn this stuff once I get the alternator setup up and running.