Re: [PSUBS-MAILIST] CO2 Scrubbers

["samdatl" <samdatl@avana.net>]

Nuclear subs are very large in respect to a psub. air to individual. it is
monitored and if the levels get too high an alarm will sound then the sub
comes to pd and circs the air.
----- Original Message -----
From: "Karl Fuller" <fullerk@voyager.co.nz>
To: <personal_submersibles@psubs.org>
Sent: Monday, August 07, 2000 9:37 PM
Subject: Re: [PSUBS-MAILIST] CO2 Scrubbers


> Yes Ray, it also reminds me when I read the book ' The sun beneath sea '
> where
> they were under the sea for weeks and they got a build up of certain gases
> which if I remember correctly, were getting to the critical level by the
end
> of the mission. There must be ways of removing these noxious gases or
> venting them, how do they do it on a nuclear sub, one or two of you guys
> might have had first hand experience with it. When you think about it, the
> Earth does an amazing job to purify our air, but how and for how long ?
> (Apart from the obvious CO2 removal and O2 genaration )
> Regards,
> Karl.
> ----- Original Message -----
> From: Ray Keefer <Ray.Keefer@west.sun.com>
> To: <personal_submersibles@psubs.org>
> Sent: Monday, August 07, 2000 2:43 PM
> Subject: Re: [PSUBS-MAILIST] CO2 Scrubbers
>
>
> > Hi,
> >
> > All this talk about using algae rings a bell as to something I read.
> > Down in Arizona there is a project called Biosphere2. It was to create
> > a totally enoclosed, self-sustaining environment.
> >
> > The initial test dome and early NASA test projects were based on using
> > algae. After serveral days the atmosphere became toxic. Not from CO2
> > but from a bunch of other gases that bled into the air.  Gases from
> > paints, plastics, human wastes, human exhalation, the algae.... Algae
> > helped change CO2 to O2 but there were other things that it didn't take
> > care of.
> >
> > It turned out that a fully enclosed system was not a trivial exercise
> > after all. That lead to the hughly complicated Biosphere2 project.
> > Essentially Biosphere2 was an attempt to miniturize the Earth. During
> > the first two year mission the atmosphere got so dangerously short on
> > oxygen that they had to tank in an external source.
> >
> > I have a book but unfortunately the book is at home and is about to be
> > packed up for the household move to Oregon. I'll see if the wife can
> > email me the title and ISBN.
> >
> > The Biosphere2 web site is http://www.bio2.edu/ if anyone is
> > interested.
> >
> >
> > Regards,
> > Ray
> >
> >
> >
> > > From: "Karl Fuller" <fullerk@voyager.co.nz>
> > > To: <personal_submersibles@psubs.org>
> > > Subject: Re: [PSUBS-MAILIST] CO2 Scrubbers
> > > Date: Mon, 7 Aug 2000 09:20:51 -0400
> > > Content-Transfer-Encoding: 7bit
> > > X-Priority: 3
> > > X-MSMail-Priority: Normal
> > > X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200
> > >
> > > Anthony,
> > > I would be real interested to hear the results of how much 02 the
algae
> can
> > > produce for a given quantity. Often these new possibilities of
achieving
> > > things have some merit, that takes an open mind analyze, develop and
> > > accept.History is full of this process. When Christopher Columbus was
> after
> > > funds to sail to America, he was met with ridicule. On one occasion,
> after
> > > receiving a rebuff, he asked the person, "Look out over the city and
> tell me
> > > what you see ?" The answer was " Beautiful spires and architecture
> rising
> > > above the rest " Columbus responded, Yes, and they were created by
> people
> > > like me and not you. He got his funding. (My favorite part of the
movie,
> > > hope I remembered it write !) I like to think PSUBers have that spirit
> as
> > > Christopher C.
> > > Of course, safety is a must in relation to PSUBS and must always be
the
> > > balance !
> > > Regards, Karl
> > > Good explination SW ! Now with Pat's light source (extra after his
> weekend
> > > binge) no matter if the batteries go, methane powered lights to keep
the
> > > algae growing and on this occasion Pat, no guilt for a good cause.....
> > > ----- Original Message -----
> > > From: <TeslaTony@aol.com>
> > > To: <personal_submersibles@psubs.org>
> > > Sent: Monday, August 07, 2000 2:17 AM
> > > Subject: Re: [PSUBS-MAILIST] CO2 Scrubbers
> > >
> > >
> > > > In a message dated 8/6/00 4:55:00 PM Pacific Daylight Time,
> > > > stephenwhite20@yahoo.com writes:
> > > >
> > > > > hahahahaha
> > > > >  Whats wrong with the normal CO2 scubber material?
> > > > >  Wouldn't it be easier to obtain, store and use? I
> > > > >  mean, its a cool idea but do you really want to fill
> > > > >  your psub with algae and Grolamps?
> > > > >
> > > > In some ways you are right that Algae is not as easy to obtain as
> > > Sofnolime
> > > > or other scrubber materials, but no scrubber material will grow when
> you
> > > toss
> > > > it in your backyard swimming pool or pond, Algae will.
> > > >
> > > > When it comes to how much space this takes up, it's not bad, small
> enough
> > > to
> > > > fit on your back like a bulky SCUBA tank, plus it negates the need
for
> O2
> > > > tanks since part of the metabolisation process involves spewing out
a
> good
> > > > deal of O2, enough to breath with.
> > > >
> > > > Now just out of curiousity, would you care to reapeat that laugh
when
> you
> > > are
> > > > stuck 120 feet down, unable to bail out and running real low on
> Oxygen? A
> > > > single Algae unit could last (now don't base all your calculations
on
> > > this,
> > > > but it is probably true) twice as long as the batteries running the
> lamps,
> > > if
> > > > not more.
> > > >
> > > > I'll get the exact numbers to you as soon as I can find them, but
> until
> > > then:
> > > > Have fun!
> > > >
> > > > Anthony
> > > >
> > >
> > >
> >
> >
>