Linnard?s hydrogen on demand system without electricity !

[hansvonlieven]

G'day Dave

Sorry to keep bothering you but this is going around my head and I just have to know more.

You have proved, at least to my satisfaction, something I have believed for a very long time. Water can be dissociated with less energy than the resultant gases can deliver. It appears to me though that by using a hydrogen fuel cell you are only utilising part of your product.

It would stand to reason that by not separating the gases and burning the resultant H2 O2, more energy would be available than with Hydrogen alone. This would also dispense with the pressure problem in your reactor.

I was thinking of burning the gas and driving with it an external combustion engine, such as the Stirling motor. These motors can operate on a very small temperature difference (as little as four degrees centigrade), though they become more powerful as the difference increases. They are also very efficient. For such a motor to work one would obviously need to maintain a small flame.

The Stirling motor works like this:



My question is what would it take to build a reactor that is capable of maintaining a flame, however small. The motors are available as running engines from the shelf and in kit form (at this stage model motors only) and they are cheap and powerful enough to connect to a small DC generator.

Please let me know what you think.

Hans von Lieven

[ResinRat2]

Hi Hans,

I am sure if a very small tip were placed on the hydrogen gas port that it would sustain a small flame. When you are talking three bubbles or so a second, then that would probably do alright.

I've never looked at the sterling engine; but if you have a heat source, then wouldn't you need a cool source too? Are you thinking the cool source would just be ambient air temperature?

I am sure I read somewhere that a fuel cell is more efficient than burning hydrogen gas for a fuel source, but at this time I don't have that information in front of me. Maybe the Sterling engine is more efficient than other engines? I honestly don't know this information for sure.

It gives me something to look into further.

Thanks for your ideas.

[kinggeorge]

Dr Linnards web site shows some very high volume short term Hydrogen on demand generators. Like the ads say just add water.  So RR2 how scalable do you see this technology. HOH powering a ICE Internal Combusion Engine is old school.  If this is scalable and can regenerate, a 5-10 KWH gen set should be in reach of everyone.  Cells material cost seems low?

George King
georgeking@cosmicsalamander.com

[ResinRat2]

Noooooo George,

The fuel cell part of the system is the most expensive part. That technology is very costly right now. Prices should drop in the future but right now not so good.:

http://www.fuelcellstore.com/cgi-bin/tornado/view=NavPage/cat=1046

Check out some costs for 200-300watt systems. Ouch.

I think the next part of the research, that entails putting the platinum wires directly in the reactor, should be lower cost since all that is needed is the wires. No other parts of the external fuel cells would be needed. That's my hypothesis anyway.

Theoretically it should be scalable to any needed size. Just make a reactor large enough and load it with enough electrodes and electrolyte, and put it in the hot desert for best results (lol). Should be able to run at ambient temperate climates as well.

I can imagine all our desert areas covered with these reactors.

[hansvonlieven]

G'day Dave

A Stirling engine of current design is capable of generating over 50% of the theoretical maximum, an internal combustion engine is rated at 25% by comparison.

The cooling is not critical. Of course if you can keep it low it helps but when you are talking heating with a flame, perhaps using aluminium oxide as a heat storer ambient temperatures are more than adequate. Small models of his thing can actually sit on your hand and spin, the difference between body temperature and ambient is enough to keep it going.



The tiny model below will actually work on top of your coffee cup!



Both these models are are sold commercially and have been for years.

Hans von Lieven