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Under-sink Peltier Device

Hot, cold, & super-cold running water
  [vote for,

Sometimes the cold water out of the tap isn’t cold enough. In such cases, flip on the under-sink Peltier device. It cools the water as it flows through the pipe so it comes out icy cold.
AO, Apr 28 2003

Refrigerated Drinking Fountains http://www.drinking-fountain.net/
Baked, except the Peltier thing. [Worldgineer, Oct 21 2004]


       are you pleased to see me? - hmmm, no.
po, Apr 28 2003

       I forgot to mention, you can also hook it up to your shower.
AO, Apr 28 2003

       I noticed :)
po, Apr 28 2003

       Why a peltier device, not a traditional heat pump? How large would it have to be to have sufficient capcacity? Where would the waste heat go?
Worldgineer, May 09 2003


       Peltier instead of compressor because it is smaller, quieter, and only runs when you need it (rather than keeping a reservoir of cold water).   

       The size would be a 12-inch square peltier sandwiched between two coils of pipe. The whole thing would be about 4 inches thick.   

       The hot side is connected to a cold water loop that goes back to the water heater.
AO, May 12 2003

       I'm picturing a traditional 1-lever sink faucet that you turn to the right for hot water, aim toward you for normal-cold, and aim left for super-cold. Although I love any product that uses heat rejection effectively (your cold water loop annotation), I think it may be more marketable with air cooled heat rejection to avoid plumbing issues.   

       I think this is a well though out, viable and interesting idea. I wonder why I'm the only one that's noticed this idea (except po).
Worldgineer, May 12 2003

       I think there are certain terms that get automatically ignored these days, including “peltier”, “piezo”, and “wankel.”
AO, May 12 2003

       So my idea for a wankle piezoelectric pletier device is not worth posting? Damn, the thing creates it's own energy.
Worldgineer, May 12 2003


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