Novel fridge cools with sound
3rd July 2010
The researchers hope that their work will end reliance on gases that can contribute to global warming.
And if you believe that one, they’ll tell you another one.
A temperature gradient can be generated by putting a stack of plates in the right place in a tube in which the sound wave is bouncing around. Some plates in the stack will get hotter and others colder.
All it takes to make a refrigerator out of this system is to attach heat exchangers to the ends of the stack.