Sonic Fridge
December 26, 2002 09:19 AM
Did you ever feel a cool wave, standing next to that bunch of one storey speakers at IndiRock? No, nor did I. :-) But yes, sound as loud as 173dB is being used to cool gases in a fridge. This means no ozone-punching gases in future. Using the high compression and expansion caused by high amplitude sound waves, it is possible to cool certain gases to a considerable extent. As this fridge does at the Applied Research Lab in Penn State, US. This thermoacoustic fridge has even been tested on the Space Shuttle and might be commercially available in future.
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