Sound and heat are both vibrations, ironic isnt it

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mpteach
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Sound and heat are both vibrations, ironic isnt it

Post by mpteach » Thu Jan 08, 2004 1:31 pm

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

CoolGav
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Post by CoolGav » Thu Jan 08, 2004 3:18 pm

Cool!

When will we get them as LSFs for PC's??? And will they be quiet on the outside?
[size=75]P3 700 Lian Li PC7 (rarely on) | P4M @ 1.2 SLK3000B (server, always on) | C2Q Q9300 Solo (usually on) | P-M 1.4 (IBM X31) (often on) | Celeron 430 NSK2400 (usually on) | C2D E4300 no case! (usually on)[/size]

mpteach
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Post by mpteach » Fri Jan 09, 2004 9:50 am

CoolGav wrote:Cool!
And will they be quiet on the outside?
That would depend alot on thier engineering

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

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