It seems to me that all boats are holes in the greatest and most effective heat sink on the planet - the sea. Could there not be a way to harness the temperature differential between the sea and a hot cabin
in the tropics?
Specifically, what about using a phase-change material, like a variation of Glauber's Salt
, to provide passive cooling
, as well as heating
on a boat
. Couldn't you fabricate container of the salt
, drop it in the water
at night, and put it in you cabin
when it gets hot? Conversely, for heating
, couldn't you leave it on deck
in the sun, then put it in your cabin overnight for heat release?
Products - Phase Change Materials - PCMs - PCM Energy Pvt. Ltd.