How to build a home CO2 carbonation system (the nozzle part)
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From: Jeff Liebermann on 4 Apr 2010 13:24 On Sun, 4 Apr 2010 13:33:46 +0000 (UTC), Elmo <dcdraftworks(a)Use-Author-Supplied-Address.invalid> wrote: >It worked when I removed the stem of the tire valve (pictures here): >http://yfrog.com/13updatehomeco2carbonatiojx Ok, that's fine. Now, clean up the rest of the mess. The natural rubber hose is not suitable for dealing with freezing liquids. Put a piece in the fridge and watch it get stiff and brittle. I suggest you use clear vinyl or PVC "food grade" hoses, and nylon fittings. >My problem was there is no measurable laminar gas "flow" in either system >(1) tire valve with stem, or (2) tire valve w/o stem. > >But, without the stem, the c02 molecules continue to "infuse" into the >liquid until there are 4 liters of c02 in the 1 liter of liquid. You can measure the amount of dissolved CO2 with a pH meter or pH testing paper: <http://en.wikipedia.org/wiki/Carbonic_acid> See chart on acidity. >So, I think the word "infuse" would have been better than "flow". Why so complexicated? Infusion is more like a slow leak into the liquid. What you're really complaining about it is that it takes some time for the gas to dissolve in the liquid. It doesn't happen instantly. Patience. You can speed things up by increasing the surface area of the gas bubbles, using smaller bubbles or a manifold like contraption with more holes. Even so, it does take a while for the gas to dissolve. >Now I have really good tasting seltzer water, grape juice soda, orange >juice soda, etc. Light reading: <http://www.ehow.com/carbonated-water/> Have fun... (burp, belch, hiccup). -- Jeff Liebermann jeffl(a)cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558
From: Elmo on 4 Apr 2010 14:05 On Sun, 4 Apr 2010 13:41:07 +0000 (UTC), Elmo wrote: > The article suggested 150psi (and says 100psi is generated internally if > you drop any common soda bottle); so, as an experiment, I donned welders > garb (helmet, bib, and heavy gloves) and pressurized the 1 liter seltzer > bottle filled with orange juice to 150psi ... and ... nothing happened. Correction! The article suggested 50psi! (not 150psi). http://www.truetex.com/carbonation.htm
From: Elmo on 4 Apr 2010 14:10 On Sun, 4 Apr 2010 08:34:32 -0700 (PDT), Engineer wrote: > Path: aioe.org!news.glorb.com!news2.glorb.com!postnews.google.com!z3g2000yqz.googlegroups.com!not-for-mail > From: Engineer <junk2007(a)rogers.com> > Newsgroups: alt.home.repair,sci.electronics.repair > Subject: Re: How to build a home CO2 carbonation system (the nozzle part) > Date: Sun, 4 Apr 2010 08:34:32 -0700 (PDT) > Organization: http://groups.google.com > Lines: 22 > Message-ID: <8a8bf04f-e954-4e88-b317-75850e745024(a)z3g2000yqz.googlegroups.com> > References: <hp8muh$1v7$1(a)tioat.net> <hp8oev$2dl$1(a)tioat.net> > <693gr51633o5copge4hjsv1j544d1o2jrc(a)4ax.com> <hpa4tj$eka$1(a)tioat.net> > NNTP-Posting-Host: 174.112.36.42 > Mime-Version: 1.0 > Content-Type: text/plain; charset=ISO-8859-1 > Content-Transfer-Encoding: quoted-printable > X-Trace: posting.google.com 1270395272 4072 127.0.0.1 (4 Apr 2010 15:34:32 GMT) > X-Complaints-To: groups-abuse(a)google.com > NNTP-Posting-Date: Sun, 4 Apr 2010 15:34:32 +0000 (UTC) > Complaints-To: groups-abuse(a)google.com > Injection-Info: z3g2000yqz.googlegroups.com; posting-host=174.112.36.42; > posting-account=7eatwQoAAAA7jEgZiH-tBO0RJMP2eeGB > User-Agent: G2/1.0 > X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.3) > Gecko/20100401 Firefox/3.6.3 (.NET CLR 3.5.30729),gzip(gfe) > Xref: aioe.org alt.home.repair:89991 sci.electronics.repair:20732 > > On Apr 4, 9:41=A0am, Elmo <dcdraftwo...(a)Use-Author-Supplied- > Address.invalid> wrote: >> On Sat, 03 Apr 2010 21:22:39 -0700, Jeff Liebermann wrote: >>> Some maniacs have gone to 100 PSI and up by reinforcing the >>> bottle with duct tape, but methinks 50 PSI is a good safe limit. > > (snip) > >> I remember reading somewhere they test automotive tires by filling them t= > o >> 200 psi of water to see if they'll blow (the water apparently lessens the >> danger). > > (snip) > > Yes, there's no danger because, being incompressible, it does not > store energy like a pressurized gas. The only stored energy with > water pressurization is strain energy in the vessel, usually quite > small. If the vessel ruptures the pressure instantly goes to zero and > the water just runs out. > Cheers, > Roger Does that mean that, if I fill the juice bottle with juice, and then pressurize the head space to, say 200 psi (or whatever it takes to burst the bottle or cap), that the danger is less (than if I filled it purely with gas)? The hose is beverage hose so it seems to take 150psi without problems. The bottle seems to take 150psi without problems and the tire valve doesn't seem to leak from the top so I wonder what happens if I fill it to bursting. What can we predict will happen if I have, say, an inch or two of headspace and I pressurize the bottle to bursting (either glass or plastic)? I suspect the glass would be too dangerous to even try (although glass would hold up to higher pressure ... maybe even the 800 psi of the carbon dioxide tank???). I suspect the bottle top will blow off the threads before the bottle explodes or before the hose expands. The top has a brass tire valve in it so obviously you'd want it to be aimed the other way from your face. Unanswered questions: Do you think the bottle will blow first or the cap off the threads? Do you think glass will withstand the entire 800 psi of the C02 tank?
From: Jeff Liebermann on 4 Apr 2010 16:21 On Sun, 04 Apr 2010 10:24:07 -0700, Jeff Liebermann <jeffl(a)cruzio.com> wrote: >Infusion is more like a slow leak into the >liquid. What you're really complaining about it is that it takes some >time for the gas to dissolve in the liquid. It doesn't happen >instantly. Patience. You can speed things up by increasing the >surface area of the gas bubbles, using smaller bubbles or a manifold >like contraption with more holes. Even so, it does take a while for >the gas to dissolve. I just re-read the original article and noticed that the author recommends agitation under pressure to help with dissolution. That strikes me as a bit dangerous as aggitation is a great way to trigger a rupture, but will help disolved the gas. Hmmm.... maybe a paint shaker? -- Jeff Liebermann jeffl(a)cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558
From: Jeffrey D Angus on 4 Apr 2010 17:07
Jeff Liebermann wrote: > I just re-read the original article and noticed that the author > recommends agitation under pressure to help with dissolution. That > strikes me as a bit dangerous as aggitation is a great way to trigger > a rupture, but will help disolved the gas. Hmmm.... maybe a paint > shaker? It's beginning to sound as dangerous as the new "Shake and Bake" method for making Meth in 2 liter bottled. Jeff -- �Egotism is the anesthetic that dulls the pain of stupidity.� Frank Leahy, Head coach, Notre Dame 1941-1954 http://www.stay-connect.com |