Solar powered sponge that boils water

MIT have created a bubble-wrapped sponge structure which boils water using only the suns heat. This relatively low tech and inexpensive solution could provide a sustainable alternative to the kettle and hot could even be used in hot water systems.

MIT-Sun-Steam-1_0

The study was led by George Ni and Gang Chen and was published in ‘Nature Energy’ this week.

“It was relatively low optical concentration,” Chen says. “But I kept asking myself, ‘Can we basically boil water on a rooftop, in normal conditions, without optically concentrating the sunlight? That was the basic premise.”

The design uses a sponge like material made of graphite and carbon foam covered in a thin, blue, metallic-like film which absorbs radiation in the visible light spectrum but doesn’t radiate infra-red which means it keeps in the heat.

To read more CLICK HERE.

 

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