Two Fixed, Evacuated, Glass, Solar Collectors Using Nonimaging Concentration

John D Garrison; Roland Winston; Joseph O'Gallagher; Gary Ford

doi:10.1117/12.937706

5 January 1984 Two Fixed, Evacuated, Glass, Solar Collectors Using Nonimaging Concentration

John D Garrison, Roland Winston, Joseph O'Gallagher, Gary Ford

Proceedings Volume 0441, Intl Conf on Nonimaging Concentrators; (1984) https://doi.org/10.1117/12.937706
Event: 27th Annual Technical Symposium, 1983, San Diego, United States

Abstract

Two fixed, evacuated, glass solar thermal collectors have been designed. The incorporation of nonimaging concentration, selective absorption and vacuum insulation into their design is essential for obtaining high efficiency through low heat loss, while operating at high temperatures. Nonimaging, approximately ideal concentration with wide acceptance angle permits solar radiation collection without tracking the sun, and insures collection of much of the diffuse radiation. It also minimizes the area of the absorbing surface, thereby reducing the radiation heat loss. Functional integration, where different parts of these two collectors serve more than one function, is also important in achieving high efficiency, and it reduces cost.

Citation Download Citation

John D Garrison, Roland Winston, Joseph O'Gallagher, and Gary Ford "Two Fixed, Evacuated, Glass, Solar Collectors Using Nonimaging Concentration", Proc. SPIE 0441, Intl Conf on Nonimaging Concentrators, (5 January 1984); https://doi.org/10.1117/12.937706

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