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HHO as fuel?

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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HHO as fuel?

Unread postAuthor: budabob07 » Sun May 22, 2011 8:48 am

Would HHO work as a fuel in a standard PVC combustion gun? I'm guessing that the force of the explosion would shatter the PVC. Has anyone tried this?
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Unread postAuthor: inonickname » Sun May 22, 2011 8:56 am

Use the search function. This topic has been beaten to death.
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Unread postAuthor: jimmy101 » Sun May 22, 2011 12:02 pm

And don't posting anything relating to "HHO", it makes you look like an idiot. Use the proper name of just hydrogen (H<sub>2</sub>) plus 1/2 O<sub>2</sub>.
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Unread postAuthor: Technician1002 » Sun May 22, 2011 12:08 pm

LOL.. How about 2 H2 and one O2? 1/2 of an O2 is rare as it combines with almost anything even another O2 to become ozone. You can find 1/2 of an O2 in an ozone generator and in a fire, but it doesn't last long.
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Unread postAuthor: Crna Legija » Sun May 22, 2011 12:11 pm

if it work for a ghetto i dont see why it wont work in a good quality pvc cannon
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Unread postAuthor: Labtecpower » Sun May 22, 2011 12:19 pm

Thank you Crna :D

I strongly advise not to use it in a PVC cannon. The gas burns very fast (above the SOS in air).
I would think the PVC cannon would fail.

This is a nicer vid however
[youtube]http://www.youtube.com/watch?v=EBei3GXCm1w[/youtube]
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Unread postAuthor: saefroch » Sun May 22, 2011 2:27 pm

inonickname is very correct, this topic has been beaten to death, and the general consensus is that it has a lower energy yield for projectile propulsion for a given volume at atmospheric pressure than does an oxygen/propane mix.
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Unread postAuthor: jimmy101 » Sun May 22, 2011 2:28 pm

Technician1002 wrote:LOL.. How about 2 H2 and one O2? 1/2 of an O2 is rare as it combines with almost anything even another O2 to become ozone. You can find 1/2 of an O2 in an ozone generator and in a fire, but it doesn't last long.
So you are comfortable with "HHO"?

To a chemist a molecular formula is assumed to apply to a sample, not to a single molecule. Since a small sample of any molecule contains milliontrillions of atoms the fraction is not a big deal. 1/2O<sub>2</sub> is perfectly OK, though usually the fraction would be removed; 2H<sub>2</sub> + O<sub>2</sub>.
But 47.2156H<sub>2</sub> + 23.6078O<sub>2</sub> is OK to.

Regardless, the point is that HHO is just plain stupid, and inaccurate, since it implies two monoatomic hydrogens and a monoatomic oxygen, or more accruately, it describes water, which isn't a fuel at all.
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Unread postAuthor: Zeus » Sun May 22, 2011 5:50 pm

I must concur with jimmy101, HHO is an uneducated term used by those who install such things in cars.

In STP it is generally 2H<sub>2</sub> + O<sub>2</sub>. It's a ratio of 2:1 H<sub>2</sub>.

I get slight rages when chemistry terms are abused, HHO being the main one.
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Unread postAuthor: Technician1002 » Sun May 22, 2011 6:29 pm

I laugh when others are abused. Here is a classic;
http://www.dhmo.org/
http://en.wikipedia.org/wiki/Dihydrogen_monoxide_hoax
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Unread postAuthor: Zeus » Sun May 22, 2011 6:37 pm

Ah the big drama around that omnipresent poison DHMO. That was nearly banned out here (Aus). Possibly the best troll in existance, even better than the Oprah troll.
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