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Author Topic: Linnard?s hydrogen on demand system without electricity !  (Read 429574 times)

hansvonlieven

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #885 on: November 23, 2007, 03:46:13 AM »
G'day Dave and all,

I can understand why you want to build the thing in glass, you want to be able to visually follow what is happening there.

If you are willing to forsake that advantage, why not build it in metal?

1 mm brass sheet for the box and separators, soldered together and then lacquered inside with a good epoxy resin. You would get a much better heat transfer, especially if you soldered some fins on the outside and electrically the epoxy would keep it insulated. Only question is, does epoxy interfere with your catalyst solution, though I guess not, since the acrylic sheeting you used worked OK.

You could always put an inspection window in it.

Give me the dimensions you want to use and the layout and I design it for you for your evaluation.

Just an idea at this stage, but I do want to help and contribute where I can. You are not alone Dave.

Hans von Lieven
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Super God

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #886 on: November 23, 2007, 04:08:58 AM »
That would be a great idea, especially if the cell is affected by light!
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ResinRat2

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #887 on: November 23, 2007, 04:49:29 AM »
The reactor needs to be made of a non-conductive material. The metal would interfere with the electrodes in contact with the inside surface of the reactor.
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hansvonlieven

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #888 on: November 23, 2007, 04:57:25 AM »
G'day Dave,

It will be non conductive if it is lacquered inside with epoxy.

You can lacquer it outside as well if you wish.

Hans von Lieven
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ResinRat2

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #889 on: November 23, 2007, 01:54:40 PM »
Hi Hans,

I like the idea, the heat transfer would be excellent, but right now I'd like to visually see what's going on from all angles. This thing is no where near the point where I think I know the details on how to keep it going long term. I like to record all the physical changes I see and I don't want any blind spots yet. Also, I want other people to see what's going on as well.

Thanks. Good idea.
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twohawks

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #890 on: November 24, 2007, 11:26:03 PM »
Hi RR2 (Dave),
Is there any reason you couldn't use (sheets of) plexiglass?  Once you get the hang of it its fairly easy to make just about anything with it exactly the way you want it.  If the guys here (hans?) can agree that its not reactive (I wouldn't know, but its highly doubtful), then all you need to figure is what glue you are able to use and then have at it as far as designing just what you need.

Just a thought.

cheers,
HTH
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ResinRat2

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #891 on: November 24, 2007, 11:43:19 PM »
Hi HTH,

I made my last reactor out of plexiglas. It works fine but I want a material that has a better heat transfer rate with the air outside the vessel. That is why I want to try glass.

You guys are going to laugh but right now I am experimenting with using Mason Canning Jars. A gas port on each lid and joining the electrolyte solution between the two with tubing. Should be cheap if it works. Costs less than one USA dollar for one jar. I will let you know how it goes.

Thanks everyone for your interest.
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hansvonlieven

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #892 on: November 25, 2007, 12:59:41 AM »
Just a thought Dave,

Why don't you make the bottom out of metal. suitably lacquered of course, solder some fins on the outside to get better thermal transfer and build the rest in plexiglass or some other acrylic sheeting. Overall this will be a lot better than glass, which is not exactly known tor good heat conductivity, while at the same time allowing you to observe all processes within the cell.

Hans von Lieven
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dorro1971

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #893 on: November 25, 2007, 11:29:17 AM »
hi rr2,

you could also use thin wall zinc tube as an electrode,(you would need to get your timing calculations right!!!) this would allow much greater heat xfer,......or have your existing rod centre drilled on a lathe.

regards

dorro
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twohawks

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #894 on: November 26, 2007, 12:38:51 AM »
@RR ...Hmmm...  what about a small air-cooling radiator?  I remember installing such a thing on my FJ1100 years ago to help cool the oil... ran the oil thru a little radiator mounted up front - worked great.  Seems like a terribly simple thing to do (and even fashion oneself), and then while that little thing is worrying about your cooling for you you can concentrate on other aspects of your designs and further experimentation without having to mod your work environment so much.

What do you think?

HTH
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ResinRat2

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #895 on: November 26, 2007, 01:28:47 AM »
HTH,

This system already runs cool, it doesn't need any cooling. I want it to absorb the heat from the air around it.

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jcims

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #896 on: November 26, 2007, 04:20:49 PM »
Quote from: ResinRat2 on November 26, 2007, 01:28:47 AM
HTH,This system already runs cool, it doesn't need any cooling. I want it to absorb the heat from the air around it.

The radiator just increases the thermal coupling to the ambient air...in most cases we use it to cool something, but in this case it would help pull heat into the system (e.g. by more efficiently cooling the air around it).  Just like an air conditioning coil, for example.
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NssB

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #897 on: November 26, 2007, 05:42:22 PM »
Like a heatsink in reverse :)
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ResinRat2

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #898 on: November 26, 2007, 09:54:42 PM »
Quote from: NssB on November 26, 2007, 05:42:22 PM
Like a heatsink in reverse :)

Hi NssB,

Such a device would draw energy from the system and how much energy does a pump draw? I don't think it's really necessary here. I ultimately want this unit to be as efficient as possible, and if I can just use materials that do the job instead of machinery, then to me that would be the most desireable.

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hansvonlieven

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Re: Linnard?s hydrogen on demand system without electricity !
« Reply #899 on: November 26, 2007, 10:11:46 PM »
G'day Dave,

Perhaps a stupid question, but I'll ask it anyway. I don't mind making a goose of myself if new knowledge comes from it :-)

Is there a temperature difference between your zinc and tungsten electrodes and if yes, how much?

Greetings

Hans von Lieven
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