Re: [PSUBS-MAILIST] radiator cooled ambient sub

[Jon Wallace <jonw@psubs.org>]

The best cure for condensation in a small enclosed environment is air 
circulation and either thermal extraction of water vapor, or chemical 
absorption of water vapor.  Condensation on viewports is due to high 
humidity within the cabin.  Get rid of the humidity and you get rid of 
condensation.  Cabin environment control is a component of overall sub 
design that deserves as much attention as any other component.  
Condensation of water inside some of your electronic controls could get 
expensive.

Jon



ShellyDalg@aol.com wrote:
> Hi Allen. I don't have any advice on how to cool a sub, but I do have 
> a question. Where is all that heat coming from. Typically a boat 
> sitting in the water is fairly cool next to the hull, even on hot days 
> where up on deck it's sunny. I would think a small sub, be it ambient 
> or not, would need additional heat rather than cooling. Now the water 
> temp. here in Calif. is cold anyway. Usually between 54 and 56 degrees 
> year round, so I was planning on adding some type of heater, to help 
> control the temp. and also evaporate some of the moisture. I've seen 
> where condensation on the view ports can be a problem, and requires 
> constant wiping with a rag. That would probably scratch the plexi over 
> time, not good.
> Anyway, how come your sub is so hot ? Frank D.
>
> ------------------------------------------------------------------------



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