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Proceedings Paper

Analysis Of A Cassegrain Solar Furnace
Author(s): M. H. Cobble; W. C. Hull; R. A. Hays
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Paper Abstract

A solar furnace consisting of a paraboloid of revolution which tracks the sun and reflects radiation to a hyperboloid of revolution having a common focus with the paraboloid is analyzed to determine the concentration available, using various eccentricities. The hyperboloid, in turn, reflects radiation to a focal plane placed at various distances from the vertex of the paraboloid. The ideal concentration is determined using the largest radius of all the rays from the sun falling on the paraboloid, this radius being the dis-tance from the pierce point of the ray, in the focal plane, to the hyperboloid focal point. The concentrations can be augmented using a compound paraboloidal concentrator, and the ideal augmented concentration is developed for various combinations of eccentricity and vertex distances. The effect of scattering angles for the paraboloid and hyperboloid on the ideal concentration is shown separately and jointly.

Paper Details

Date Published: 17 November 1978
PDF: 11 pages
Proc. SPIE 0161, Optics Applied to Solar Energy IV, (17 November 1978); doi: 10.1117/12.956872
Show Author Affiliations
M. H. Cobble, New Mexico State University (United States)
W. C. Hull, New Mexico State University (United States)
R. A. Hays, New Mexico State University (United States)

Published in SPIE Proceedings Vol. 0161:
Optics Applied to Solar Energy IV
Keith D. Masterson, Editor(s)

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