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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