Michael Ross wrote:
A few years ago we tested a Fresnel lens concentrating system for a client.
They didn't have their tracking right and burned a trench across their
circuit boards with the focused energy...
When I worked at Kodak, we routinely used "cold mirrors". These were
special mirrors that passed the desired visible light but reflected the
infrared. There were filters that did the same thing. The typical uses
were to keep the infrared from a projection lamp from overheating the film.
It would make sense to use the same sort of thing for PV concentrators.
The IR could be redirected to thermal collectors or something else that
could use the heat.
--
We live in a society exquisitely dependent on science and technology,
in which hardly anyone knows anything about science and technology.
-- Carl Sagan
--
Lee Hart -- See my Xmas projects at www.sunrise-ev.com/projects.htm
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