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Re: [PSUBS-MAILIST] CO2 Scrubber

To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] CO2 Scrubber
From: "Pierre Poulin" <pipo305@hotmail.com>
Date: Wed, 08 Jan 2003 21:06:13 -0500
What's that method about?

Pierre






>From: emm03@mirapoint.uow.edu.au
>Reply-To: personal_submersibles@psubs.org
>To: personal_submersibles@psubs.org
>Subject: Re: [PSUBS-MAILIST] CO2 Scrubber
>Date: Thu, 9 Jan 2003 09:46:59 +1000
>
>Try my pH indicator method!!!
>ok, its not very accurate...kind of binary really in a 'are
>we going to asphyxiate or not' sort of way...sigh.!
>EM.
>
>
>---- Original message ----
> >Date: Thu, 09 Jan 2003 06:39:54 +0800
> >From: "Warrend Greenway" <dub@linuxmail.org>
> >Subject: Re: [PSUBS-MAILIST] CO2 Scrubber
> >To: personal_submersibles@psubs.org
> >
> >I talked to a scientist at work who uses the CO2 sensors,
>and is who
> >I borrowed them from. He said I was over-ranging them. It
>looks like
> >they were saturated to the point that they ceased to
>function. The crux?
> >They are not suitable for this application. Hhhhmmmm. I'm
>looking for more
> >suitable electronic sensors. Any leads on this??? By the
>way, the sensors
> >were manufactured by Digital Control Systems as of 2002. The
>problem with
> >them is that they can't tolerate CO2 levels much higher than
>those found
> >in the atmosphere. I could restructure my test, but it
>doesn't seem to be
> >time well spent.
> >
> >Warren.
> >
> >> Now that really sucks!  What brand are they?  What year
>were they
> >> manu'd?
> >> Carl
> >>
> >>
> >> Warrend Greenway wrote:
> >> >
> >> > Grrrrrr. All the data I collected was bogus, that is why
>it looked so good.
> >> > The CO2 sensors aren't working. Maybe that is why they
>are so cheap. Freak.
> >> > Anyhow, let that be a lesson to us all! Never trust a
>sensor! I'll get sensors
> >> > that work and I'll try again.
> >> >
> >> > Warren.
> >> >
> >> > > R&D is a great activity.  But while one experiments
>with life support
> >> > > improvements and modifications, I feel they should
>have a proven,
> >> > > commerically produced fail-safe in case something goes
>wrong.
> >> > > Carl
> >> > >
> >> > >
> >> > > emm03@mirapoint.uow.edu.au wrote:
> >> > > >
> >> > > > Holy dead horse.
> >> > > > Some of you guys really are insistent on this idea
>of 'I know
> >> > > > what I know, and I dont want to know no more'?
> >> > > >
> >> > > > Playing, can also be called 'research and
>development'. If
> >> > > > somone wants to play, then let him be. if you
>disagree, then
> >> > > > do it privately unless you feel that everyone else
>would
> >> > > > benefit. I am tired of seeing this attitude
>here.....its very
> >> > > > killjoy and uninteresting.
> >> > > > Can we leave it alone now?
> >> > > >
> >> > > > EM.
> >> > > >
> >> > > > ---- Original message ----
> >> > > > >Date: Tue, 7 Jan 2003 01:41:03 -0500
> >> > > > >From: "Herve" <caribsub@coqui.net>
> >> > > > >Subject: Re: [PSUBS-MAILIST] CO2 Scrubber
> >> > > > >To: <personal_submersibles@psubs.org>
> >> > > > >
> >> > > > >An engine hoist does not kill!
> >> > > > >A defective CO2 scrubber without the right
>sofnolime will
> >> > > > kill you.
> >> > > > >A miscalculated hull will crush you at depth
>without warning.
> >> > > > >You can bet on it. however if you considere sub
>making as a
> >> > > > game that s your
> >> > > > >life. Long time ago i learnt while student engineer
>that
> >> > > > engineers dont
> >> > > > >play, they may have fun but they dont play. Play
>and you
> >> > > > will go broke,
> >> > > > >loner or dead.
> >> > > > >I would say that like in aeronautic what makes a
>good subman
> >> > > > is an old
> >> > > > >subman.
> >> > > > >There are thousands of other items that are left to
>design
> >> > > > and build that
> >> > > > >are not "life support" why dont you focus on those,
>you will
> >> > > > go under the
> >> > > > >water sooner and safe.
> >> > > > >Herve
> >> > > > >
> >> > > > >----- Original Message -----
> >> > > > >From: "Warrend Greenway" <dub@linuxmail.org>
> >> > > > >To: <personal_submersibles@psubs.org>
> >> > > > >Sent: Monday, January 06, 2003 5:57 PM
> >> > > > >Subject: Re: [PSUBS-MAILIST] CO2 Scrubber
> >> > > > >
> >> > > > >
> >> > > > >> Because that's what I do every day of my life. I
>build
> >> > > > things I really
> >> > > > >> could buy, and push technology. I come from a
>family of
> >> > > > engineers. We
> >> > > > >don't
> >> > > > >> sit on our cheeks! We DO things. I needed an
>engine
> >> > > > hoist...So my dad and
> >> > > > >> myself designed the best darn hoist you have ever
>seen and
> >> > > > built it! We
> >> > > > >> could have actually bought a good enough hoist
>for less,
> >> > > > but we wanted to
> >> > > > >> build it. That is the real reason I am interested
>in
> >> > > > PSUBS. I will build
> >> > > > >my
> >> > > > >> hull, my instruments, my air recycling system,
>and my
> >> > > > power/speed
> >> > > > >controller
> >> > > > >> circuitry. Why? Because that's the game! I will
>carefully
> >> > > > test my system
> >> > > > >before
> >> > > > >> I use it, and if I can't make it function
>reliably then I
> >> > > > won't use it. I
> >> > > > >might
> >> > > > >> even use the sofnolime blend just for fun, but I
>will
> >> > > > still build my own
> >> > > > >waste-
> >> > > > >> heat rechargeable system to use it in. Besides
>it's mostly
> >> > > > just fun to
> >> > > > >consider
> >> > > > >> the alternatives to standard systems. But I also
>see what
> >> > > > you are saying.
> >> > > > >Building
> >> > > > >> everything is not for everyone. You may not have
>the time
> >> > > > or interest.
> >> > > > >That's
> >> > > > >> fine.
> >> > > > >>
> >> > > > >> Warren.
> >> > > > >>
> >> > > > >> > Hi,
> >> > > > >> > I dont understand why you dont want to use the
>sofnolime
> >> > > > specially
> >> > > > >designed
> >> > > > >> > for life support systems, do you want to make
>your own
> >> > > > just to save $50
> >> > > > >and
> >> > > > >> > risk your life.
> >> > > > >> > Amazing to see that every year divers die with
>market
> >> > > > rebreathers, yet
> >> > > > >guys
> >> > > > >> > outhere are ready to dive in carboard sub and
>milk
> >> > > > cartons rebreathers
> >> > > > >and
> >> > > > >> > try anything for the freedom of doing it.
> >> > > > >> > A "regular" sub is ALREADY difficult and tricky
>to put
> >> > > > together, why
> >> > > > >even
> >> > > > >> > considere nuclear homemade sub, flying subs,
>propane
> >> > > > subs, peroxyde
> >> > > > >subs,
> >> > > > >> > and other out of your mind submersible, did
>anyone tried
> >> > > > telekinesis
> >> > > > >sub,
> >> > > > >> > warp sub,  or time travel sub, is there anyone
>left here
> >> > > > who wants to
> >> > > > >build
> >> > > > >> > just a realistic sub?
> >> > > > >> > Herve
> >> > > > >> > ----- Original Message -----
> >> > > > >> > From: "Warrend Greenway" <dub@linuxmail.org>
> >> > > > >> > To: <personal_submersibles@psubs.org>
> >> > > > >> > Sent: Monday, January 06, 2003 1:03 PM
> >> > > > >> > Subject: Re: [PSUBS-MAILIST] CO2 Scrubber
> >> > > > >> >
> >> > > > >> >
> >> > > > >> > > I understand why divers wouldn't want to, but
>I still
> >> > > > do. I don't
> >> > > > >> > > see what the problem is. You simply have to
>properly
> >> > > > granulate and
> >> > > > >> > > hydrate the calcium hydroxide. Furthermore,
>you can
> >> > > > get the product
> >> > > > >> > > from chemical suppliers properly packaged and
>pure for
> >> > > > less. I
> >> > > > >wouldn't
> >> > > > >> > > need of want the coloring agent. I would be
>using CO2
> >> > > > analyzers on
> >> > > > >inlet
> >> > > > >> > > and exhaust to decide when to replace. Like I
>said
> >> > > > though, the medium
> >> > > > >is
> >> > > > >> > > rechargeable. I don't think you would want to
>if you
> >> > > > were talking
> >> > > > >short
> >> > > > >> > > range weekend diver...
> >> > > > >> > >
> >> > > > >> > > Warren.
> >> > > > >> > >
> >> > > > >> > > > At 09:52 AM 1/6/2003 +0800, Warrend
>Greenway wrote:
> >> > > > >> > > > >The basic scrubber will consist of a
>canister with
> >> > > > two screens
> >> > > > >> > > >
> >> > > > >> > > > >calcium hydroxide is standard slaked or
>hydrated
> >> > > > lime, available at
> >> > > > >any
> >> > > > >> > > > hardware
> >> > > > >> > > > >store for a few bucks a fifty pound sack.
> >> > > > >> > > >
> >> > > > >> > > > I've been on the "rebreather" listserv for
>a couple
> >> > > > years since this
> >> > > > >is
> >> > > > >> > > > another interest of mine. You might enjoy
>this
> >> > > > website--
> >> > > > >> > > > http://www.atlimp.com/pend2.htm, although
>he is more
> >> > > > serious with
> >> > > > >other
> >> > > > >> > > > projects - http://www.atlimp.com/home.htm
> >> > > > >> > > > other "famous" homemades -
> >> > > > >> > > >
> >> > > >
>http://www.metacut.com/rebreathers/TP2000/Default.htm (this
> >> > > > author
> >> > > > >died
> >> > > > >> > > > last month when the helicopter he was
>piloting
> >> > > > crashed into NY
> >> > > > >> > waterfront
> >> > > > >> > > > at night- another dangerous activity),
> >> > > > >> > > > http://home1.gte.net/doctrbob/CCO2.htm,
> >> > > > >> > > >
>http://www.hrc.wmin.ac.uk:8080/xml/kiss/home,
> >> > > > >> > > >
>http://insel.heim.at/malediven/350052/english.htm
> >> > > > >> > > >
> >> > > > >> > > > I don't think any serious divers would use
>hardware
> >> > > > store hydrated
> >> > > > >lime.
> >> > > > >> > > > The CO2 absorption depends on the exposure
>to the
> >> > > > surface area of
> >> > > > >the
> >> > > > >> > > > sodalime "granules" and anyone who bets
>their life
> >> > > > on such only
> >> > > > >> > purchases
> >> > > > >> > > > prepared "sodalime" from suppliers that
>have a
> >> > > > consistant and
> >> > > > >reliable
> >> > > > >> > > > product. The sodalime is discarded and
>replaced in
> >> > > > the scrubber for
> >> > > > >each
> >> > > > >> > > > dive. source -
> >> > > > http://www.metacut.com/rebreathers//sofnolime.htm -
> >> > > > >this
> >> > > > >> > one
> >> > > > >> > > > changes color as product is used up.
> >> > > > >> > > >
> >> > > > >> > > > William Alford
> >> > > > >> > > > walford@dbtech.net
> >> > > > >> > > >
> >> > > > >> > > > Tout comprendre c'est tout pardonner
> >> > > > >> > >
> >> > > > >> > > --
> >> > > > >> > > ______________________________________________
> >> > > > >> > > http://www.linuxmail.org/
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> >> > > > >> > >
> >> > > > >> > >
> >> > > > >> >
> >> > > > >>
> >> > > > >> --
> >> > > > >> ______________________________________________
> >> > > > >> http://www.linuxmail.org/
> >> > > > >> Now with POP3/IMAP access for only US$19.95/yr
> >> > > > >>
> >> > > > >> Powered by Outblaze
> >> > > > >>
> >> > > > >>
> >> > > > >>
> >> > > > >
> >> > > > >
> >> > > > >
> >> > >
> >> > > --
> >> > > "You delight not in a city's seven or seventy wonders,
>but in an answer
> >> > > it gives to a question of yours, or the question it
>asks you, forcing
> >> > > you to answer, like Thebes through the mouth of the
>Sphinx." -- Kublai
> >> > > Khan
> >> >
> >> > --
> >> > ______________________________________________
> >> > http://www.linuxmail.org/
> >> > Now with POP3/IMAP access for only US$19.95/yr
> >> >
> >> > Powered by Outblaze
> >>
> >> --
> >> "You delight not in a city's seven or seventy wonders, but
>in an answer
> >> it gives to a question of yours, or the question it asks
>you, forcing
> >> you to answer, like Thebes through the mouth of the
>Sphinx." -- Kublai
> >> Khan
> >
> >--
> >______________________________________________
> >http://www.linuxmail.org/
> >Now with POP3/IMAP access for only US$19.95/yr
> >
> >Powered by Outblaze
> >


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