Jason Mick / DailyTech
June 21, 2008
‘New solar dish from MIT concentrates sunlight intensely enough to melt steel.’ -
The solar industry is booming. With waves of investment and grants, the solar power industry is for the first time becoming a serious business. New power plants will soon be pumping power out to consumers, while other firms market to sell panels directly to the consumer, providing them with a more direct means of experiencing solar energy.
There are many forms of solar power technology. Today the most dominant is photo-voltaics , which comprise the traditional solar panels that come to mind when one thinks of solar power. However, there are other promising ways of capturing the sun’s energy that are merely less developed.
Among these is a parabolic collector. A parabolic collector consists of an array of mirrors focused on a singular point, which they heat to a high temperature. By placing water or another liquid at the collector, energy can be stored in the form of a phase transformation, and later harvested through a turbine generator.
However, parabolic collectors are still a relatively new field of research. Their true potential remains relatively unknown. A glimpse of it was provided by a research team at MIT, which developed a new parabolic collector design, which will blow away current solar power designs in terms of efficiency.
The MIT team believes that their lightweight, inexpensive device holds the promise of revolutionizing the power industry and providing solar power to even remote regions.
The key piece is the 12-foot dish, which the team assembled in several weeks. The design is exceedingly simple and inexpensive. The frame is composed of aluminum tubing and mirrors are attached to it.
The results are staggering – the completed mirror focuses enough solar energy at its focal point to melt solid steel. The energy of typical sunlight is concentrated by a factor of 1,000. This was showcased during a demonstration, in which a team member held up a board, which instantly and violently combusted, when brought within range of the focal point.
By directing the dish at a more practical target – water piped through black tubing – steam can be flash created, offering instant means of producing energy or providing heating.
Spencer Ahrens, who just received his master’s in mechanical engineering from MIT, was among the designers of the dish. He and his fellow team members are serious about marketing it, and leveraging its cheap cost and easy production. They have founded a company named RawSolar. They say their design is easily mass producible and that they hope to be pumping out 1,000 of dishes in years to come.
link:
http://www.insidetech.com/news/2389-mit ... melt-steel
Awesome!
Can't you just hear the collective hiss of the global elites! Soon, very soon - we will not need what 'they' are controlling and selling.
Power to the people!
MIT Students Develop Solar Dish Hot Enough to Melt Steel
Sustainable and renewable energy.
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