How does accoustic foam convert large scale vibrations(sound) to atomic vibrations (heat)?
look at this: www1 & www2
Thats a reversal of the process in which 173dB sound inside a presurized tube is used to create a thermoaccoustical referigerator with no moving parts.
here an internesting discussion on using sound to cook www3
Sound and heat are both vibrations, ironic isnt it
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That would depend alot on thier engineeringCoolGav wrote:Cool!
And will they be quiet on the outside?
Most likely they would work in the ultrasonic range. I think that the device creates standing waves inside the tube of highly compressed gas.
at 10 atmospeheres the speed of sound is faster so they would need a decently high frequency to pruduce a small wavength for a practical HSF.
Imagine trying to decouple one of those things? lol