Hybrid Concentrated Solar Energy System
Scientists from the Australian National University (ANU), Tianjin University in China and Chromasun, a Silicon Valley company with strong Australian connections, will join forces to create roof-mounted solar trough concentrator systems that they believe will be more cost-effective and efficient than previous models. The prototype measures 1.7 x 1.5 x 0.2 meters and incorporates seven mirrors that focus sunlight onto receiver tubes. Crystalline Si micro PV cells - with an efficiency of about 20% under concentrated sunlight - will be fitted to the receivers to operate under concentrated x20 - x30 sunlight with water cooling being used to deliver heat to the hot-water tank. Read more here.
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I'm glad that you mentioned Hedy Lamarr in this article. I've written a book about her and the patent taken out in 1942 (see http://www.robsbookshop.com/robsbookshop/page35.html). She and her co-patentee George Antheil certainly added a little glamout to the eveolution of spread spectrum
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