A research team at United technologies Corporation has presented an environmentally friendly substitute for refrigeration technology. The team has worked on a compact chiller that uses sound waves to cool your goodies instead of environment-damaging chemical refrigerants. The concept uses a loudspeaker to generate high sound energy, thousands times beyond even the rock concert levels, in an environmentally safe gas to directly convert it into useful cooling in a thermo acoustic chiller. Many of the tests have been conducted by the team using air instead of refrigerants such as CFC’s to attain the cooling.
thermoacoustic compressor
Via: io9
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