<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>That's a great find Joe,</div><div>It's designed for the environment & gives us an idea of size & amp draw.</div><div>It would be ok for surface transit but would need a through hull valve where it pumped water in,</div><div>that you could close before diving. I doubt the heat exchanging unit & pump would take</div><div>the ambient water pressure at depth. As said, the Triton Heat exchanger is outside in the water</div><div>& would ( I'm guessing ) just have fresh water at ambient pressure running through it.</div><div> I like what Phil said they do, with the ice pads. There are all sorts of spaces you could pack</div><div>them in.</div><div>Alan</div><div><br>Sent from my iPad</div><div><br>On 6/10/2013, at 11:08 PM, Joe Perkel <<a href="mailto:josephperkel@yahoo.com">josephperkel@yahoo.com</a>> wrote:<br><br></div><blockquote type="cite"><div><table cellspacing="0" cellpadding="0" border="0"><tbody><tr><td valign="top">Here's a 12VDC unit<br><br><a href="http://www.tropicalmarineairconditioning.com/sheets/2425C.pdf">http://www.tropicalmarineairconditioning.com/sheets/2425C.pdf</a><br><br>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.<br><br>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.<br><br>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.<br><br>I live through Vance's camel torture story for about five minutes every time I climb into my white SUV. <br><br>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. <br><br>Joe<br><br><br><br>Sent from Yahoo! Mail for iPad</td></tr></tbody></table> <div id="_origMsg_">
<div>
<br>
<div>
<div style="font-size:0.9em">
<hr size="1">
<b>
<span style="font-weight:bold">From:</span>
</b>
Jon Wallace <<a href="mailto:jonw@psubs.org">jonw@psubs.org</a>>; <br>
<b>
<span style="font-weight:bold">To:</span>
</b>
Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>; <br>
<b>
<span style="font-weight:bold">Subject:</span>
</b>
Re: [PSUBS-MAILIST] Air conditioner <br>
<b>
<span style="font-weight:bold">Sent:</span>
</b>
Mon, Oct 7, 2013 2:32:22 AM <br>
</div>
<br>
<table cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td valign="top"><br>In the recreational, personal, sub-world you generally can't have your <br>cake and eat it too. Put two adults in a small sub like the K250 and <br>you sacrifice comfort for occupancy. Freon based AC units whether auto <br>or household are not practical solutions for the traveling submariner, <br>such as convention diving. There was zero space for such an AC unit on <br>board the Boston Whaler used to tow SNOOPY out into the ocean, and the <br>support boat was being tossed in 2-4 foot seas. It simply is not <br>practical unless you are building a support boat specific for your sub <br>diving and trailering it along with your submarine to the dive location.<br><br>The best solution for the average psubber is to use a small ice chest <br>(six-pack size) stuffed with ice and then circulate cabin air over that <br>ice. Use a small computer fan to force air over the ice
if necessary. <br>The first refrigerators were nothing more than ice-chests, low-tech, <br>easy maintenance, not super efficient but adequate to keep things <br>relatively cool.<br><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a ymailto="mailto:Personal_Submersibles@psubs.org" href="javascript:return">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br></td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Personal_Submersibles mailing list</span><br><span><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br><span><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br></div></blockquote></body></html>