Marissa Brassfield
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 Emily Cummins Develops Portable Cooler for Developing Countries Published: Jan 13, 09 Comments: 5 Views: 2,385 21-year-old student Emily Cummins has created a portable solar-powered fridge specifically for use in developing countries. The revolutionary design needs no electricity, and Inhabitat reports that Cummins’ design can be made from commonly available materials like recycled metal, cardboard and sand. Emily Cummins’ solar-powered fridge works on the principle of evaporation by using both convection and conduction. The goods to be refrigerated are sealed in an interior metal chamber. Sand, wool or soil is placed between that inner chamber and the outer chamber, and as it is warmed by the sun, water evaporates and thereby cools the fridge’s inner chamber. It can maintain a temperature of 43 degrees Fahrenheit for several days. Cummins’ solar-powered refrigerator has been implemented in South Africa, Zambia and Namibia.  “I set about looking at how I could make a sustainable version after asking people what luxury they couldn’t live without and one of the answers that kept coming up was ‘fridge҅I wanted to keep it really simple and so I set about researching how we cooled things years ago. The simplest method of cooling something could be seen when you look at how we cool biologically—through sweating or evaporation. That idea led me to the design and the fridge was born.
(inhabitat)References: emilycummins, inhabitat Filed In: |
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