A sound wave in a tube filled with gas can cool a refrigerator or a room. The technology that supports this idea is novel but proven, and it has the potential to eliminate a variety of harmful chemicals that destroy the ozone layer or increase global warming. Steven Garrett, a 1993 Rolex Award Laureate, has been developing sound-powered refrigeration equipment for over a decade with the ultimate hope that this environmentally friendly technology will find its way from his laboratory to everyone’s homes.
kilowatts of cooling capacity of the refrigeration unit, enough to cool a small business
electroacoustic conversion efficiency of the high-power, high-efficiency loudspeaker
year in which the Kyoto Protocols on Global Warming called for a ban on CFCs