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Re: [PSUBS-MAILIST] Re: Increasing pressure inside hull
Thank you. That makes sense. I was also wondering if anyone knows what
the Max pressure the human body is capable on enduring and what sort of
effects one can expect.
Jay.
Thanks,
J. Barlow CET
Sr. Mechanical Designer
BJ Pipeline Inspection
Ph (403) 531-5412
Fax (403) 236-8740
Cell (403) 807-2195
"Thijs Struijs"
<thijs-struijs@planet.nl> To: <personal_submersibles@psubs.org>
Sent by: cc:
owner-personal_submersibles Subject: Re: [PSUBS-MAILIST] Re: Increasing pressure inside hull
@psubs.org
30/09/2002 02:42 PM
Please respond to
personal_submersibles
Jay,
Increasing pressure is done in case of an emergency escape from a sub. In
the Busby book page 660 - 665 you can read more about it. It isn't fun. I
doubt if you need to increase pressure in case of a leak. I suppose in most
cases leaks are limmited to water seaping through seals. In other cases you
won't have time to react (crushing viewports, or a pressurehull buckling).
So I don't think it is worth while making a safety system like you
discribe.
Thijs Struijs
----- Original Message -----
From: "Coalbunny" <coalbunny@vcn.com>
To: <personal_submersibles@psubs.org>
Sent: Friday, September 27, 2002 2:28 PM
Subject: [PSUBS-MAILIST] Re:
> Not silly Jay. It's an idea and all ideas are worth discussing. I
> feel, atleast.
> Carl
>
>
> jbarlow@bjservices.ca wrote:
> >
> > This is a thought I had some time ago, and didn't know who to ask if it
was
> > a silly idea.
> >
> > What if one built a 1 atmosphere submarine with the ability to increase
the
> > pressure inside the hull quickly in case of a leak which would then
stop
> > the leak and give one time to get the leak under control. I realise
that
> > you would then have to decompress slowly. The hull wouldn't have to be
> > designed for internal pressure because it would only be balancing the
> > external pressure, but I think that any hull designed for an external
> > pressure would be good the same pressure applied internally. I think
the
> > problem would come from some fittings which are only designed to take
> > pressure from one side.
> >
> > How quickly can the human body take an increase of pressure?
> > How high of a pressure can the human body take if the pressurizing
medium
> > is air?
> > What if you had mixed gasses (diving gas) ready to pressurize the boat
(in
> > the bottle sized for the interior of the boat at Max depth plus some
for
> > the unknown leak) and thus diving gas was the pressurizing medium?
> >
> > Is this silly?
> >
> > Jay.
> >
> > Thanks,
> >
> > J. Barlow CET
> > Sr. Mechanical Designer
> > BJ Pipeline Inspection
> >
> > Ph (403) 531-5412
> > Fax (403) 236-8740
> > Cell (403) 807-2195
>
> --
> "I learned this, at least, by my experiment: That if one advances
> confidently in the direction of one's dreams, and endeavors to live the
> life one has imagined, one will meet with a success unexpected in common
> hours." Henry David Thoreau
>
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