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Proceedings Paper

Performance Of A 3 . 7 Meter Cylindrical Concentrator
Author(s): W. C. Livingston
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Paper Abstract

Design and construction considerations are given for a 1.8 x 3.7 m cylindrical parabolic focusing collector having a concentration ratio = 28. Built of commonly available materials, this tracking collector is intended to feed, by the exchange medium of oil, an Abbot-type solar oven. At 80°C the collection efficiency is .33, declining to .05 at 260°C (500°F). The dependence of black coatings on receiver pipe efficiency is studied. The reflectivity of vacuum deposited aluminum, buffed aluminum plate and shiny aluminum foil are compared. The greatest improvement in performance has come about by placing the collector on a shade free roof. Abbot's mirror was shaded past 1 o'clock.

Paper Details

Date Published: 16 March 1976
PDF: 6 pages
Proc. SPIE 0068, Optics in Solar Energy Utilization I, (16 March 1976); doi: 10.1117/12.978107
Show Author Affiliations
W. C. Livingston, Kitt Peak National Observatory (United States)

Published in SPIE Proceedings Vol. 0068:
Optics in Solar Energy Utilization I
Yale Katz, Editor(s)

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