11.08.2007

The Hot and Cool Science of Thermoacoustics

In this month's Popular Science there's a story about a very interesting and potentially world changing stove being developed called SCORE (Stove for Cooking, Refrigeration and Electricity).

By using thermoacoustics, the stove heats pressurized air on one side of a pipe, water keeps the other side cool and the collision of the two different temperature air masses produces sound that drives a wire coil in and out, kind of like a loudspeaker but in reverse, that creates electricity. Water running over the coldest part of the tube freezes into ice which can be used to keep a fridge cold.

How wacky is that? Make a fire to keep something cold. Who says science doesn't have a sense of humor.

The potential applications for this technology are almost limitless and could deliver safer food storage, cleaner air, more efficient resource usage and better lives for a rather insanely large portion of the world's population. And that, my friends, would really and truly make the world a better place.

Read more about it at Huliq

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