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Cool news for boozers

作者:孟镗    发布时间:2019-03-08 03:10:11    

The Esky, the polystyrene cool box Australians use to keep their beer chilled, is about to go solar. The University of Sydney has come up with two prototypes with solar panels in their lids. In one design, solar electricity powers a cooling element that depends on the Peltier effect: when electricity passes between two different metals, heat is absorbed. In the second design, the solar panel generates energy to compress a salt solution and drive it through an evaporator. As water evaporates, the remaining liquid expands and draws heat out of the Esky. The Peltier design adds 4 kilograms to an Esky’s weight,

 

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