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Generator set up questions
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Tom1803 Offline
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Post: #1
Generator set up questions
My generator is a 2" ID ss tube with a ss all thread with 1 1/2 ss fender washers with a ss washer between each one. The rod is 12" long with 85 washers on each rod. The spacer washers are 1.5mm thick. This is incased inside a 2" black plastic pipe. Right now I have 3 cells setup and am planing to add 3 more. the electrolight is 2 teaspoons of Lye to a gal. of water and runs cold 16 amps, hot at 19 amps. Wired in series with a PWM. Production now is about 1/2 a liter per minute.

1. Should the spacer washers be wider?

2. Would it make any difference weither the pipe is + or - in production? Which would make the most Hydrogen?
11-14-2008 10:05 AM
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realtyroy Offline
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Post: #2
RE: Generator set up questions
Tom1803 Wrote:My generator is a 2" ID ss tube with a ss all thread with 1 1/2 ss fender washers with a ss washer between each one. The rod is 12" long with 85 washers on each rod. The spacer washers are 1.5mm thick. This is incased inside a 2" black plastic pipe. Right now I have 3 cells setup and am planing to add 3 more. the electrolight is 2 teaspoons of Lye to a gal. of water and runs cold 16 amps, hot at 19 amps. Wired in series with a PWM. Production now is about 1/2 a liter per minute.

1. Should the spacer washers be wider?

2. Would it make any difference weither the pipe is + or - in production? Which would make the most Hydrogen?
Should the pipe be positive or negative, I would think would depend on which has the most surface area. The electrode or the pipe. I build my cells trying to have the most surface area as the negative as I believe the negative produces the gas that you want.
Others will probably have more input for you on your setup.

RealtyRoy-HHO Scambuster
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11-14-2008 10:22 AM
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Yodamaker Offline
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Post: #3
RE: Generator set up questions
Take some pictures of your cell and the production and post them here. That info will be neccessary in order to give you any constructive advice.

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11-14-2008 10:26 AM
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Tom1803 Offline
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Post: #4
RE: Generator set up questions
I did a little math and switch my wiring around and lowered the MAP volts another .05. The center washers have way more serface area. I am now feeding it 3.95 volts and the motor is running smooth with no jerking on take off. I will get a picture when I add the last 3 cells right now all there is to see is some black pipe.
I am wondering is there a miminum gap that gas bubbles need to escape?
And I think I read somewere in here the stronger the mix the less amps you need for max production.

2002 PT Cruser 2.4
Phoenix, Arizona
11-15-2008 05:29 AM
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gtkco Offline
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Post: #5
RE: Generator set up questions
Hi Tom,
I have been doing a lot of bench testing on an almost identical generator. I have (15) 1 1/2 SS washers spaced about 1/8 inch (I use (3) 1/4" flat washers as spacers) on a 5" x 1/4" bolt. They are surounded by a 2 1/4" dia x 3 1/2 tube. At 16.9 amps, 4.33v, H2o temp 114F it produced 193 ML / minute. If I had 3 that would be 580 ml/min. Clearly, your 3 gens are much larger and should be doing better. You definately need a minimum of 1/8 inch between the washers to allow the gas to escape. Also, the negative (cathode) which produces the hydrogen should be on the washer electrode because it has the largest surface area. Finally, my washers are slightly angled. I put a 5/8 crimped lock washer on the top and one onthe bottom and use a nut on the top and bottem to tighten the whole bunch of washers down. With some jiggling you can get all the washers to be at a slight angle. You'll just have to play with it to see what I mean. However, I don't know if this improves the production because I haven't actually tested it. Oh yes, the solution used for this test was 6 teas NaOH / 2 L h2o. Hope this helps.
(This post was last modified: 11-15-2008 07:12 AM by gtkco.)
11-15-2008 07:04 AM
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Tom1803 Offline
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Post: #6
RE: Generator set up questions
I don't quite understand the angle part and why it helps. I did a little math and with your spacing and the 12' long bolt and pipe I will have about 1510 Sq in of neg and 452 Sq. in of pos. surface.

2002 PT Cruser 2.4
Phoenix, Arizona
11-15-2008 08:33 AM
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gtkco Offline
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Post: #7
RE: Generator set up questions
Tom1803 Wrote:I don't quite understand the angle part and why it helps. I did a little math and with your spacing and the 12' long bolt and pipe I will have about 1510 Sq in of neg and 452 Sq. in of pos. surface.

I'm not sure the angle does help. The idea is to help the bubbles to release from the surface. Regarding your math, I am not following. I come up with 1017 sq inches for all three gens on the washer electrode or roughly 339 per each. I am assuming (8) 1 1/2" washers per inch of rod. So ((0.75^2 * 3.14) * 2) * 96 washers = 339.12 for each gen. Are you adding in the surface area of your spacers and bolt too? Is this why your total it is more?
11-15-2008 09:19 AM
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Tom1803 Offline
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Post: #8
RE: Generator set up questions
I was doing 60 fender washers per cell minus the area the spacer washers

2002 PT Cruser 2.4
Phoenix, Arizona
11-15-2008 09:56 AM
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gtkco Offline
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Post: #9
RE: Generator set up questions
Tom1803 Wrote:I was doing 60 fender washers per cell minus the area the spacer washers

Well, I believe the formula for the area of a circle is radius^2 * pie. That means a 1 1/2" washer is .75^2 = 0.5625. Then 0.5625 * 3.14 = 1.77 sq inches per side of washer. 1.77 * 2 (sides) = 3.53. 3.53 * 60 = 218 total square inches for sixty 1 1/2 washers. If the spacers are also SS (eg a nut) then they would add more sq inches. If they are a nut just use the formula for a cylinder. It is close enough. If they are inert, you don't subtract or add. Hope this helps.
(This post was last modified: 11-15-2008 02:44 PM by gtkco.)
11-15-2008 02:39 PM
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Tom1803 Offline
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Post: #10
RE: Generator set up questions
I was explaning my set up to someone and he stated that the only part of the washer stack that would make gas was the outside edge and that the flat sides of the washers would not because electricity found the shortest path. I am wondering about that because outher threads are wrapping there cells to keep stray electricity in check.

2002 PT Cruser 2.4
Phoenix, Arizona
11-17-2008 11:40 AM
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