| Author |
Message
|
| Killjoy |
 Posted: 11/11/2007 3:37 AM Post subject: How to Make an Electrolysis Machine V.2 |
 |
|
Brigadier General
Joined: 11 Nov 2006
Posts: 1002
710.97 Spud Bux
|
Last edited by Killjoy on 01/13/2008 22:55 PM; edited 1 time in total |
|
| Back to top |
|
 |
|
|
|
| Tom |
| Posted: 11/11/2007 3:58 AM Post subject: |
|
|
Sergeant Major
Joined: 24 Aug 2007
Posts: 188
69.64 Spud Bux
|
Looks very neat, A while ago I made a elecrolyses machine but ther didn't come of any H2  . You could also better use a battery charger  .
GR.Tom |
|
| Back to top |
|
|
| mopherman |
| Posted: 11/11/2007 8:01 AM Post subject: |
|
|
Brigadier General
Joined: 03 Feb 2007
Posts: 796
847.70 Spud Bux
|
| wow thanks. This really helps my understanding of these things. |
|
| Back to top |
|
|
| jimmy101 |
| Posted: 11/11/2007 11:06 AM Post subject: |
|
|
Major General
Joined: 28 Mar 2007
Posts: 1776
7533.12 Spud Bux
|
| Quote: | Final Assembly
Take some warm water (about 4 cups) and mix in several table spoons (3 or 4) into the water, continuing to stir until it all disolves and the water is clear. |
Didn't know that tablespoons would dissolve in water. Just kidding. Looks very nice. The electrolyte is baking soda?
If you can get a hold of some NaOH or KOH it'll work a bit better and be less likely to corrode your electrodes. (Many drain cleaners are basically pure NaOH or KOH, "Drano" also contains a bit of aluminum shavings.) Baking soda (NaHCO3), aka sodium bicarbonate, is fairly basic but a stronger base works a bit better.
12V is really too much for a single electrolysis cell. The higher the voltage the more you'll get other electrolysis reactions happening. In addition, the higher voltage means you are getting more ohmic heating than you should. Make four or five of your cells and wire them in series with your 12V power source.
Or, measure the resistance of your cell and try to come up with a suitable load resistor that'll handle the current. If the cell resistance is in the vicinity of 100 Ohms then a standard 100W light bulb in series will cut the voltage (and current) in half. A 100W, 120V light bulb is basically a 100 watt (well duh) ~100 Ohm resistor, they make great cheap high power ballast resistors. |
|
| Back to top |
|
|
| Killjoy |
| Posted: 11/11/2007 11:35 AM Post subject: |
|
|
Brigadier General
Joined: 11 Nov 2006
Posts: 1002
710.97 Spud Bux
|
| Quote: | If you can get a hold of some NaOH or KOH it'll work a bit better and be less likely to corrode your electrodes. (Many drain cleaners are basically pure NaOH or KOH, "Drano" also contains a bit of aluminum shavings.) Baking soda (NaHCO3), aka sodium bicarbonate, is fairly basic but a stronger base works a bit better.
|
I was planning on using NaOH since I have a big jar somewhere, but I couldn't find it, so baking soda was the next best/only thing I had. But your right, they're better then just baking soda.
And I'll try cutting the voltage, either with the light bulb idea, or just ordering, say, a 6 volt lead acid battery. Thanks for you suggestions. |
|
| Back to top |
|
|
| BigJon |
| Posted: 11/11/2007 12:27 PM Post subject: |
|
|
Staff Sergeant
Joined: 30 May 2007
Posts: 120
217.87 Spud Bux
|
| This might be a noob question but what do you do with the gas that is produced from this? |
|
| Back to top |
|
|
| jimmy101 |
| Posted: 11/11/2007 14:29 PM Post subject: |
|
|
Major General
Joined: 28 Mar 2007
Posts: 1776
7533.12 Spud Bux
|
Killjoy
Do you think you could get the H2 and O2 seperate if there was a small wall on the outlet end of the chamber and you had two exit hoses? |
|
| Back to top |
|
|
| mopherman |
| Posted: 11/11/2007 14:52 PM Post subject: |
|
|
Brigadier General
Joined: 03 Feb 2007
Posts: 796
847.70 Spud Bux
|
| BigJon wrote: | | This might be a noob question but what do you do with the gas that is produced from this? |
blow $hit up. Hydrogen and oxy could also be used as a spudgun fuel. You would need a full metal gun for it though. Hydrogen is also lighter than air, so you could make balloons. use your imagination |
|
| Back to top |
|
|
| BigJon |
| Posted: 11/11/2007 16:56 PM Post subject: |
|
|
Staff Sergeant
Joined: 30 May 2007
Posts: 120
217.87 Spud Bux
|
| lol. But anyways thats a nice set up you got there. |
|
| Back to top |
|
|
| Killjoy |
| Posted: 11/11/2007 19:15 PM Post subject: |
|
|
Brigadier General
Joined: 11 Nov 2006
Posts: 1002
710.97 Spud Bux
|
| Quote: | Killjoy
Do you think you could get the H2 and O2 seperate if there was a small wall on the outlet end of the chamber and you had two exit hoses? |
You could, just would need a little modification and measuring. The wall would have to continue probably about 3/4 of the way, and then glue a wall between the electrodse on the cap which protrudes up, so when it is screwed in the two sections kinda make one wall....I think that makes since. But yeah it will work.
| Quote: | | blow $hit up. Hydrogen and oxy could also be used as a spudgun fuel. You would need a full metal gun for it though. Hydrogen is also lighter than air, so you could make balloons. use your imagination |
Exactly, my plan was to use this in my new hybrid. |
|
| Back to top |
|
|
| ninjafroglet |
| Posted: 11/11/2007 21:33 PM Post subject: |
|
|
Private
Joined: 09 Nov 2007
Posts: 11
15.25 Spud Bux
|
| I'm not entirely sure but i think graphite electrodes are better for electrolysis than steel, ideally platinum should be used for hydrogen production, but that gets a little expensive. |
|
| Back to top |
|
|
| jimmy101 |
| Posted: 11/12/2007 10:32 AM Post subject: |
|
|
Major General
Joined: 28 Mar 2007
Posts: 1776
7533.12 Spud Bux
|
| ninjafroglet wrote: | | I'm not entirely sure but i think graphite electrodes are better for electrolysis than steel, ideally platinum should be used for hydrogen production, but that gets a little expensive. |
Graphite electrodes (e.g., graphite welding rods) work well but are really not needed. With the correct electrolyte and voltage, steel and iron, even zinc plated, work well.
In a laboratory, graphite and platinum electrodes are used for generic electrolysis setups so that the same rig can be used for pretty much any electrolysis (even in molten salt). In the case of electrolysis of water they are kind of overkill. |
|
| Back to top |
|
|
| MetalMSTR |
| Posted: 11/12/2007 13:23 PM Post subject: |
|
|
Private First Class
Joined: 11 Nov 2007
Posts: 36
79.30 Spud Bux
|
wow it looks great but yes you ll need a iron spudgun to support that energy so lets use it to make explosive ballons 
and trow it to the fu·$%neigthborgs niegthborgs |
|
| Back to top |
|
|
| the beast |
| Posted: 11/12/2007 21:32 PM Post subject: |
|
|
Private
Joined: 12 Sep 2007
Posts: 22
53.95 Spud Bux
|
| correct me if im wrong but if you put hydrogen into a pneumatic wont it fire much faster/further. like in the same gun hydgrogen at 50 psi will outperform air at 50 psi right. |
|
| Back to top |
|
|
| Killjoy |
| Posted: 11/12/2007 21:43 PM Post subject: |
|
|
Brigadier General
Joined: 11 Nov 2006
Posts: 1002
710.97 Spud Bux
|
| Im not sure. I assume so since hydrogen is less dense then air. |
|
| Back to top |
|
|
|
|
