The unusually hot weather, combined with my unrefrigerated collection of Mountain Dew and lack of room for a minifridge in my room, drove me to invent something to remedy this unfortunate situation. Here’s what I came up with.
It uses, rather than a conventional evaporation-based cooling system like in an air conditioner or refrigerator, a decompression-based cooling system called a Stirling engine. You may have heard of Stirling engines being used to generate rotary motion or electricity from heat; well, it also works the other way–you can cool things off with one if you apply rotary motion.
(A Peltier cooler is also awesome, especially since it doesn’t have moving parts, but it’s ridiculously inefficient, so I barely considered it.)
This model has two cooling cylinders, one at the top and one at the bottom of the can–an improvement over most single-can coolers I’ve seen which usually have a single cooling unit at the bottom of the can (which is much less efficient than one at the top of the can, which permits convection to cool the drink faster). (The single-can coolers I’m talking about were all Peltier coolers; I couldn’t find any Stirling-engine based can coolers. I’m not sure why.)
And finally, no I haven’t built it yet, but I’m in the process of gathering parts for a foundry and hope to cast the parts for it out of aluminum and bronze/brass. We’ll see how well that works out.
So, here’s what I’m looking for. Comments and criticism of the design (especially aesthetics) and also presentation tips–making the render/materials look better. Thanks!