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parabolic dish collector





parabolic dish reflector
Parabolic dish collector with a mirror-like reflectors and an absorber at the focal point. Image courtesy of SunLabs, Dept. of Energy
A concentrating solar collector that is similar in appearance to a large satellite dish, but has mirror-like reflectors and an absorber at the focal point. A parabolic dish system uses a computer and dual-axis tracking to follow the Sun across the sky and concentrate the Sun's rays onto the receiver located at the focal point in front of the dish. In some systems, a heat engine, such as a Stirling engine, is linked to the receiver to generate electricity. Parabolic dish systems can reach 1000C at the receiver, and achieve the highest efficiencies for converting solar energy to electricity in the small-power capacity range.


Related category

   • SOLAR ENERGY AND POWER