Re: [PSUBS-MAILIST] idea/keel cooling

[irox <irox@ix.netcom.com>]

One way to avoid problems with pressure bursting the radiator
would be to run pipes external to the sub (kind of like a
radiator, but the pipes can resist the external pressure) and
run the heat exchanging fluid threw the external pipes (cooling
the fluid), then back into the hull and threw the internal
radiator cooling the air.  The coolant pump doesn't have to
do any extra work to over come external pressure.

This is essentially the same as keel cooling, but the external
heat exchanger can with stand external pressure. 

Apologies if this was already proposed, I can't seem to find
the original part of the thread which talks about using
water under external pressure.

Cheers,
 Ian.


-----Original Message-----

From: Alan James 

Sent: Jul 28, 2010 2:43 AM

To: personal_submersibles@psubs.org

Subject: Re: [PSUBS-MAILIST] idea

Hi David,
my radiator idea might work for an ambient but in a 1 
atm sub
the radiator would blow apart with the water  
pressure if too deep.
You could run the water in to a reservoir & 
suck it up through the radiator
with a pump between the radiator & the outlet but it 
would drain the electricity
pumping against the outside water pressure & be a bit 
dodgy.
I was rethinking the heat issue also after seeing 
Doug's sweat box.
Alan
 
 

  ----- Original Message ----- 
  From: 
  David 
  Bartsch 
  To: personal_submersibles@psubs.org 
  
  Sent: Wednesday, July 28, 2010 5:38 
  PM
  Subject: RE: [PSUBS-MAILIST] idea
  
Vance,
 
   Take the time to give Alan's 
  idea a look...makes better sense to use the cold water and simply reuse it 
  with a pump. A great how-to set of instructions 
  too.
 
                                                                                                 
  David Bartsch
 

  
  To: personal_submersibles@psubs.org
Subject: 
  Re: [PSUBS-MAILIST] idea
Date: Tue, 27 Jul 2010 21:46:19 -0400
From: 
  vbra676539@aol.com

Dave, 
  

  That is almost exactly the semi-stone age air conditioning unit that Wil 
  and Charlie Kohnen install on all the Seamagine subs. It works like a champ, 
  and I suspect you will see one aboard Gamma pretty soon, as well.
  

  Vance


  


  -----Original 
  Message-----
From: David Bartsch <dbartsch2236@hotmail.com>
To: 
  personal_submersibles@psubs.org
Sent: Tue, Jul 27, 2010 9:33 pm
Subject: 
  [PSUBS-MAILIST] idea


  
  
  To all: Not sonar related but...
 
  It is said that necessity 
  is the mother of invention...
 
  The only dive I have ever 
  been on aboard a small submarine was hotter than hell. Nothing against this 
  sub captain or his submarine as I feel all small submarine experience 
  this problem when working in warm water and in the Summer 
  months.
 
  Solution?...
 
  A small 
  container installed aboard this submarine thru the already available access 
  hatch and set upright and out of the way. It appears as a small cooler with an 
  easy to open upper lid. 
  Prior to diving, this lid is opened and a 
  small bag of ice or perhaps several is simply poured into this opening. It 
  lands on a screen about 3/4 of the way down into this opening. This lid is 
  then closed and a small toggle switch is then turned on.
  A 12 
  volt dc fan draws air from an intake port above this ice and is supplied by a 
  funnel such as is used on household  clothes dryers from perhaps 
  somewhere aft in the submarine. This air passes thru this ice and into the 
  this fan which exhaust it again into a tube sent forward perhaps to several 
  exhaust ports.
  As this ice melts, the condensate drips down and is 
  collected into a pan at the units base. This pan is designed to slide out once 
  full for disposal of this collected water of perhaps 2 gallons. A high water 
  level alarm could be installed as an extra.
  At the dives end, this 
  collected water is simply slid out and thrown over the side as fresh ice is 
  again installed into the units upper lid assembly in preparation for the next 
  dive.
  Of but the power used to circulate air, no addition power is 
  used to operate this device so it is not much of an additional drain on the 
  boats electrical systems as would an actual ac unit.
  Although not 
  perfect, this device should lower the temperature enough to make diving a bit 
  more comfortable for both the submarine operator and that of his 
  passengers.
 
  Does this device seem worth while to 
  develop?
 
                                                                                                                                                                                                 
  David Bartsch
= 

  
  The New Busy is not the too busy. Combine all your e-mail accounts with 
  Hotmail. Get busy.



************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003.  Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.

If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
	removeme-personal_submersibles@psubs.org

Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.

PSUBS.ORG
PO Box 53
Weare, NH  03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************