A startup established by a group of MIT students and alumni is bringing solar technology to medical clinics in Lesotho, with the aim of generating electricity and hot water.
Matthew Orosz has developed a system that uses mirrored parabolic troughs to capture sunlight, heating fluid in a pipe along the middle of the trough. That fluid is used to generate electricity in the exact opposite way that an air conditioner works -- instead of turning electricity and warm fluid into cold air, it uses hot fluid and cold air to generate electricity. The resulting contraption is known as an organic Rankine cycle, or "Orc", engine.
By: Duncan Geere, Edited by: Nate Lanxon
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via Wired.co.uk
http://www.wired.co.uk/news/archive/2012-08/08/solar-troughs
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