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Good one - forgot about dessicant. I had
several large packs of it and threw it all out a couple of weeks ago.
argghhh. Mind you I doubt it was colour-changing.
Any idea how much 5 lb. would absorb?
BTW, my ambient is not wet, it's dry. There's
no water in the cabin.
Rick L
----- Original Message -----
Sent: Friday, January 13, 2006 12:23
PM
Subject: Re: [PSUBS-MAILIST] Life Support
(O2)
Rick,
I'd think any ambient sub would never be able to dry
the air, but is how about using desiccant? $20 will get you five
pounds of reusable color changing silica gel.
-PGK
Harry -
Medical oxygen is bone dry. O2 in the
lines will accelerate oxidation (rusting) if humidity is
present.
I may install a dehumidifier in Magical
Child. In the long run, the idea of rubbing anti-fog all over my
canopy doesn't really appeal to me.
Because my sub will be an ambient, one way I'll
be reducing humidity in the cockpit is by venting my breathing exhaust
directly out of the cabin. Perspiration and water vapour from my latte
(seriously) will be the only sources of humidity in the
boat.
Initially a towel and anti-fog will
do.
Hope this helps.
Rick L
----- Original Message -----
Sent: Friday, January 13, 2006 9:50
AM
Subject: Re: [PSUBS-MAILIST] Life Support
(O2)
> Harry Spillett schrieb:
> >
> >
Carsten,
> >
> > Do you know if the different grades of
oxygen have different quantities of
> > moisture in them? I would
of thought it best to use a drier version if
> > possible to keep
the humidity in check for longer dives.
>
> Your body breath
much more humidity than the gas will be contains..
>
> ..
breath out close to an mirror or
> ..breath out during winter time
outside your house to test that..
>
> > Will you be fitting
a dehumidifier or other air conditioning equipment to
> >
Euronaut?
>
> No not realy, the co2 absorber will eat just a
little of the moisture.
> But the top 2/3 of the pressure hull
cylinder will be insulate - and the
> 1/3 below the foorplate not.
Condensation will be happend below the
> floor plates - and run than
to the bilge system. Hopefully the area on
> top of the floorplate
were the crew is - will be more or less dry.
>
> But a Psub
with a diver look in and out and wet scuba suit will be maybe
> wet
all the time..
>
> best regards - Carsten
>
> > Regards,
> >
> > Harry
> >
> > > -----Original Message-----
> > > From:
owner-personal_submersibles@psubs.org [mailto:owner-
> > > personal_submersibles@psubs.org]
On Behalf Of Carsten Standfuss
> > > Sent: Thursday, January 12,
2006 10:52 PM
> > > To: personal_submersibles@psubs.org
> > > Subject: Re: [PSUBS-MAILIST] Life Support (O2)
>
> >
> > > You can use "industrial Oxygen" (for welding
Porpose) as breathing
> > > oxygen. We use it in our rebreather
as pure stuff without any problems
> > > as most diver and
pilots did. The o2 Came from the same machine as
> > > "medicine
oxygen". I have heard that today the only difference for
> > >
"medicine o2" is that they create/pump a vaccum inside the bottles
>
> > before they filled the bottles - to make shure that no other gas
or air
> > > is inside the bottle..
> > >
>
> > best regards Carsten
> > >
> > >
>
> >
> > >
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