Re: [PSUBS-MAILIST] Cooling the cabin: a suggested solution

[Jon Wallace <jonw@psubs.org>]

Marc,

The ice solution is simpler than a Peltier device and will require less 
power from the batteries.  It does not require a hull penetration and is 
not tricky to design.

Jon


On 7/28/2010 5:20 AM, Marc de Piolenc wrote:
> The obvious solution for restricted spaces with DC electrical power 
> available is thermoelectric (Peltier effect) coolers. They are, 
> however, tricky to design - the modules sold are always optimistically 
> rated, so the user has to do his own analysis to get the best possible 
> COP, which will not be high in any case. They're also not cheap, but 
> neither is any other solution for this particular application.
>
> Of course there has to be a way to remove heat from the hot side of 
> the modules, which implies a hull penetration for a cooling loop, and 
> very careful protection of the modules from corrosion while 
> maintaining good heat transfer.
>
> It's how I would do the job, though, if it were my sub. No moving 
> parts, and once it's designed and built, you're finished. There's no 
> maintenance, no refrigerant recharge (and none to leak into the cabin).




************************************************************************
************************************************************************
************************************************************************
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
************************************************************************
************************************************************************
************************************************************************