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Proceedings Paper

Two Fixed, Evacuated, Glass, Solar Collectors Using Nonimaging Concentration
Author(s): John D Garrison; Roland Winston; Joseph O'Gallagher; Gary Ford
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Paper 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.

Paper Details

Date Published: 5 January 1984
PDF: 5 pages
Proc. SPIE 0441, Intl Conf on Nonimaging Concentrators, (5 January 1984); doi: 10.1117/12.937706
Show Author Affiliations
John D Garrison, San Diego State University (United States)
Roland Winston, University of Chicago (United States)
Joseph O'Gallagher, University of Chicago (United States)
Gary Ford, Energy Design Corporation (United States)

Published in SPIE Proceedings Vol. 0441:
Intl Conf on Nonimaging Concentrators
Mitchell C. Ruda, Editor(s)

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