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Thread: Lye?

  1. #11
    GOplayer Guest

    Question Lye driven HOD stopped working!

    You were absolutely right! Today I did my first test run after experimenting with HOD Gen in my garage and used 5 ml Sodium hydroxide for each of my two HOD Gen. with approximately 1 qrt Destilled water. The 1st 15 miles the temperature was OK but started to rise and by the 39th mile I had it up to 175F and rising. Tomorrow when I open up the HOD Gen and see the damage (if any) I make sure to start up the 2nd experiment with 1/8 tsp Sodium hydroxide or 1 ml and take it from there. BTW: Where can I get an inline gas meter that works under vacuum? I’d like to measure real time my HHO production so I can start altering the O2 Sensor’s data being send to the MAP sensor. Thanks Z
    NEXT DAY when all was cooled down and inspected my HOD Gen: All seemd fine. Can you explain to me why is my HOD Gen won’t work anymore despite the electricity is still present in the electrodes? My first road test brought up my HOD Gen close to 200F before I could turn it off.
    Since I cannot get a single bubble out of it. Did the chemical composition of Sodium Hydroxide change? Did some coating preventing my electrodes to work?

  2. #12
    Quote Originally Posted by Omega View Post
    I would exercise caution when determining how much KOH or NaOH to add to your cell. If you ever boil a generator over, you'll know why.

    I would suggest starting with 1/8th teaspoon per quart and run it in the car that way. If the cell stays cool for at least 45 minutes, add another 1/8th teaspoon. Continue to add until the temperature is 150F max, then stop. Go slow with adding this stuff. If you get temperatures above 150F, I think you could easily overheat on long runs or with higher underhood temperatures. If you are hooked up to a vacuum line, the water can boil at as low as 160F (if I recall correctly), one good reason to avoid hooking up to a vacuum line.

    As you see the level drop in your generator, you should add only distilled water, not electrolyte solution. Water is being converted to hydrogen and oxygen, leaving the KOH or NaOH behind. IF you add solution the concentration will keep increasing until you get a boiling mess.

    Bottom line - Go slow, be conservative.
    I have to agree with the low concentration of Lye, per gallon.

    I am constantly reading of people using very much larger concentrations of catalyst, and I don't understand how they don't create a total melt down?

    Your 1/8 tsp. per quart, is 1/2 tsp, per gallon. I started with 1 tsp per gallon (sodium hydroxide), and pretty much hit it, on the mark, as it ran a fairly constant 128 F. with moderate output (10 to 11 amps). Some folks (locally), thought I should increase the catalyst, to increase production, so I bumped it by 1/2 tsp, per gallon, but my amps as well as output trippled, by that slight 50% increase.

    Note I did not add catalyst to the generator. I instead drained the generator, and remixed the gallon of distilled water, to refil the generatir from.

    While it may be incorrect to say my production trippled (I didn't take the time to measure it), as seeing the amp gage hit 30, I shut it down immediately!

    But the output did spike, with the amps.

    The point is, very little additional catalyst will make a huge difference, and that is not always good.

  3. #13
    Join Date
    Oct 2009
    Location
    Stanfordville, NY
    Posts
    799
    This is an old thread but worth reviving. These ways of determining the correct amount of KOH is fine for those that are still using wet cells. For a Dry Reactor, 28% KOH is the best way to go. Better production at lower amperage. Plus, you are able to run more bi-polar plates, thus increasing efficiency. I have 32 cells in 4 stacks (+NNNNNNN- per stack). 7.69 MMW drawing only 12 amps. In addition, the cell will never freeze.
    1998 Explorer 4x4, 4.0
    14 cell / 2 stack 6x9" drycell reactor 28%KOH dual EFIE, MAF enhancer, IAT & ECT controllers, 2.4 LPM @ 30 amps. 6.35 MMW http://reduceyourfuelbill.com.au/forum/index.php

  4. #14
    sorry if its an old thread but at 28 % KOH , what is the freezing temperature?

  5. #15
    I found my answer :O '' With a 28% mixture the freezing point is -65* C! '' on this thread: http://www.hhoforums.com/showthread.php?t=2986

  6. #16
    Join Date
    Mar 2010
    Location
    Melvindale
    Posts
    1

    Lightbulb 4th generation

    Hello I have been doing some HHO tests and I have found the new 4th Gen of HHO production with Lye. erosion = the best way to go. If you have some old pop or soda cans laying around put that lye and H20 in a glass container it will produce so much HHO you will be-able to run a torch with no problems at all Please note that this is still in testing and is not recommended to any one that is beginning with production with HHO. Also this produces a high amount of heat energy due to the osmosis effect and can involves handle of fatal chemicals. If you would like more info email me at theoldelement@gmail.com Thank you. From The Old Element project ELEMENTFX

  7. #17
    Join Date
    Apr 2011
    Posts
    28
    try a couple tsp of acid from an old car battery
    Daniel
    the only thing you cant do is the thing you dont want to do

  8. #18
    Join Date
    Apr 2011
    Posts
    28
    it probably shorted out due to temp of electrode check all your wires
    Daniel
    the only thing you cant do is the thing you dont want to do

  9. #19
    Join Date
    Feb 2012
    Posts
    8

    Lye and the water

    I'm not sure what or how you guys are getting so many AMPS with only 1-3 tablespoons. I'm running a 11 plate dry system and with 2.5 bottles of lye of 7 ounces each the most I can get is about 19 AMPS. I have a PWM so I don't have to worry about runaway heat and most of the time it's warm never over 90-100 degrees....granted it's been cold here in Portland 30 low and 55 for the high.

    I did put it white silicone in the fittings to seal the slow gas leaks and I think it may be deteriorating it off the walls of the tank and coating the plates maybe? Any ideas as to why it's not running so many amps are surely welcome!!!

  10. #20
    Join Date
    Apr 2011
    Posts
    28
    Don't worry about amps if your getting good production
    Daniel
    the only thing you cant do is the thing you dont want to do

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