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stboulet
Sep 1, 2008, 06:35 AM
Does anyone have any schematics or parts listing, or know where I could obtain one, for a system to crack water into it's constituent parts?

What I would like to do is setup 5 to 8 KW of PV panels. I would then use the energy generated from this to crack water into hydrogen and oxygen. The hydrogen would then be stored for use later in either a fuel cell or my car.

Are there plans for such a system out there anywhere?

Thanks!

Credendovidis
Sep 1, 2008, 07:11 AM
Hello stboulet

There are several ways to obtain hydrogen. There are several rather unfriendly chemical processes to the environment, and there is electricity (generated by oil , coal, gas , or nuclear resources), so neither very friendly. Than there is reversed-osmosis, with all it's problems, aluminum alloy and gallium systems, etc. Just Google your way into knowledge.

But if I were you I would use electricity : a strong current through a reservoir full of water that is made conducting by adding some sodium crystals will do the trick : catch at one side hydrogen, and at the other side oxygen.

Yes there are not many plans, but electricity is the standard way to get hydrogen and oxygen.

Problem : you are not allowed to store hydrogen in a residential area, and you require a license for anywhere else. Because of the danger by the unpreventable leaking of - and resulting explosions by - hydrogen.

Partslist :

One water reservoir
Water
Pack of table salt
2 electrodes
Power supply
Gas collection and storage device

Schematics :

See this website for general instructions and take it from there! (http://www.nmsea.org/Curriculum/7_12/electrolysis/electrolysis.htm)

Advice :

Do your wife and children a big favor and get a huge all-covering life insurance...

Success !

:>)

.

asking
Sep 2, 2008, 03:30 PM
Plants crack water during photosynthesis. There's an article about efforts to mimic this process in the current E&S, Caltech's almuni magazine.

I have been reading it, not finished.

http://eands.caltech.edu/articles/LXXI2/lewis.pdf

Credendovidis
Sep 4, 2008, 05:18 PM
Plants crack water during photosynthesis. There's an article about efforts to mimic this process in the current E&S, Caltech's almuni magazine. I have been reading it, not finished. http://eands.caltech.edu/articles/LXXI2/lewis.pdf
Excellent article ! Thanks for the link !

:)

KISS
Sep 4, 2008, 05:36 PM
I did that in grade school. Used a platinum screen for electrodes and inverted test tubes in water. The hydrogen collects at 2x the rate, if I remember.

Storage of hydrogen would require a way to presurize it.

Credendovidis
Sep 5, 2008, 08:06 PM
Actually I am more interested in asking's post and link about plants that crack water by photosynthesis.

If we could put that process working for us more efficiently...

:)