Sound Waves used as a refrigerant

Subject: Sound Waves used as a refrigerant

Date: Fri Jan 15 11:18:39 1999
Posted by Greg MacCartney
Grade level: nonaligned
School: Eastland Career Center
City: Columbus State/Province: Ohio
Country: USA
Area of science: Engineering
ID: 916420719.Eg

Message:


I once saw a program on TV a few years ago where they were 
experimenting with sound waves inside some type of metal tube and 
they were able to create frost on the inside of the tube.  Can 
you explain how this process works?  Im studying heating and air 
conditioning in school and I was wondering if this may be a new 
technology that we might see some time in the future.

Re: Sound Waves used as a refrigerant

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