[PSUBS-MAILIST] pulled thread line - submarine AC and heat

[Marc de Piolenc via Personal_Submersibles]

Pretty sure your calculations are off.

Did some work with Peltier effect coolers a few years back.

Search for information on this technology as applied in the military. 
There are many applications for which vapor-compression refrigeration is 
not possible or too dangerous.

Marc

On 03/04/2019 9:18 AM, Alan via Personal_Submersibles wrote:

> I don't know how many peltiers. If you based your air conditioning system
> on a car which uses 4 hp or 2,980 Watts & factored in that peltiers are 1/4
> as efficient as conventional air conditioning then you would need 11,920 W
> to get the equivalent cooling! And then it's an unknown as the peltiers are
> more efficient when there is a larger temperature differential between 
> sides.
> 
> 
> 
> 
> On 3/04/2019, at 12:15 AM, Brian Hughes via Personal_Submersibles 
> <personal_submersibles at psubs.org 
> <mailto:personal_submersibles at psubs.org>> wrote:
> 
>> Alan,
>>
>> How many peltier chips do you think you'll use? Or need? I was kinda 
>> planning the same idea, but was trying Kydex. I made a cover with a 
>> thin sheet of clear plastic, but I wondered about durability. Hadn't 
>> thought fiberglass. Doh.  The real reason is I picked up for free a 
>> vacuum thermomolding machine and needed an excuse to play.
>>
>> As per attachment I was thinking magnets, the chrome covered ones you 
>> can get a home depot. Attach where needed.  Spread heat transfer paste 
>> on the surface, etc. How will you attach yours? Building in piping for 
>> condensation runoff?
>>
>> For heat I'm going with a cigarette lighter socket into which I can 
>> plug my heated vest I use on cold days on the Harley. Keep the core 
>> warm, etc.
>>
>> Get Outlook for Android <https://aka.ms/ghei36>
>>
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