[PSUBS-MAILIST] Air conditioner

[hank pronk]

I suppose insulating the hull causes all sorts of other problems.  I used to lower my red sub into the water off the barge and let it cool the interior of the sub cool down.  If I did not cool it down, I had condensation problems.  Cooling the sub to close the temperature gap helped a lot.
Hank

From: Alan <alanlindsayjames at yahoo.com>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
Sent: Monday, October 7, 2013 5:25:26 AM
Subject: Re: [PSUBS-MAILIST] Air conditioner

That's a great find Joe,
It's designed for the environment & gives us an idea of size & amp draw.
It would be ok for surface transit but would need a through hull valve where it pumped water in,
that you could close before diving. I doubt the heat exchanging unit & pump would take
the ambient water pressure at depth. As said, the Triton Heat exchanger is outside in the water
& would ( I'm guessing ) just have fresh water at ambient pressure running through it.
   I like what Phil said they do, with the ice pads. There are all sorts of spaces you could pack
them in.
Alan

Sent from my iPad
On 6/10/2013, at 11:08 PM, Joe Perkel <josephperkel at yahoo.com> wrote:
Here's a 12VDC unit
>
>http://www.tropicalmarineairconditioning.com/sheets/2425C.pdf
>
>This one is dedicated DC, ..but I think running a similar sized AC unit off an inverter for dual power source options is worth considering. Powering the unit on the surface as I described in an earlier post. I don't propose diving with the unit running, but more so a pre and post mission environmental purge, particularly with the main goal of aggressively dehumidifying the cabin.
>
>No space in these boats as you note, this requires upsizing accordingly, but carefully. I once calculated the volume of a sacrificed conning tower could be substituted for 48" and a shortened length for nearly the same weight, I forget the numbers for the moment.
>
>These compact AC units can be plumbed as I described earlier, the heat exchanger would have to be purposely designed. The outflow water of these units is pretty damn hot, much much hotter than the surrounding water.
>
>I live through Vance's camel torture story for about five minutes every time I climb into my white SUV. 
>
>If I'm ever to build and have a practical Florida submersible, I've got to be cognizant of these issues and address then carefully. 
>
>Joe
>
>
>
>Sent from Yahoo! Mail for iPad 
>From: Jon Wallace <jonw at psubs.org>; To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>; Subject: Re: [PSUBS-MAILIST] Air conditioner Sent: Mon, Oct 7, 2013 2:32:22 AM 
>
>In the recreational, personal, sub-world you generally can't have your 
>cake and eat it too.  Put two adults in a small sub like the K250 and 
>you sacrifice comfort for occupancy.  Freon based AC units whether auto 
>or household are not practical solutions for the traveling submariner, 
>such as convention diving.  There was zero space for such an AC unit on 
>board the Boston Whaler used to tow SNOOPY out into the ocean, and the 
>support boat was being tossed in 2-4 foot seas.  It simply is not 
>practical unless you are building a support boat specific for your sub 
>diving and trailering it along with your submarine to the dive location.
>
>The best solution for the average psubber is to use a small ice chest 
>(six-pack size) stuffed with ice and then circulate cabin air over that 
>ice.  Use a small computer fan to force air over the ice if necessary.  
>The first refrigerators were nothing more than ice-chests, low-tech, 
>easy maintenance, not super efficient but adequate to keep things 
>relatively cool.
>
>_______________________________________________
>Personal_Submersibles mailing list
>Personal_Submersibles at psubs.org
>http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
> 
_______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles_______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20131007/f8059fec/attachment-0001.html>