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A really odd refrigeration challange
What would cause the Al to corrode? You have relatively pure fresh
water. Trying to think if I've seen any examples of Al in fresh water part time, but nothing comes to mind. Hmm. On second thought. Al siding and gutters seems to survive pretty well, but that mostly has paint on it. Al is widely used as lightweight flashing and although I would personally use something else, there have been no code restrictions or other gross problems with it as far as I know. That usually means that the product can give expected service provided it's installed well, and that would means that 26gauge Al provides at least 5 years of exterior service, probably much more since roofing is usually guarranteed for 20 years or more. Rufus Glenn Ashmore wrote: On our recent BVI cruise I started thinking about cockpit drink coolers. The beneteau 505 has a very poorly insulated cooler in the cockpit table that is a total waste of ice. RUTU, being derived from a modern high performance design, has a very wide fairly shallow cockpit. It will need foot rests to keep braced in the seats on a heel. I am thinking about building a perminent heavily insulated box down the center. It could also be used as a seat at anchor when the table is folded up and the cushion would serve as additional insulation. Now the question is how to keep it cold. I am thinking that a small evaporator type system would work. Drinks cool fastest in water so stocking originally with drinks and ice would provide the water. Once the ice melts the evaporator would maintain the temperature and the water would serve as a heat sink. What I am worried about is that the aluminum evaporator would corrode rather quickly constantly submerged in water. I am wondering if several loops of copper tube might make a better evaporator. |
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