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An experimental investigation of a stationary reflector/tracking absorber solar collector at intermediate temperature

Journal Article · · J. Sol. Energy Eng.; (United States)
OSTI ID:6282266
This paper describes the design, construction, and testing of a concentrating solar collector based on the Stationary Reflector/Tracking Absorber (SRTA) principle. The system consists of a fixed, 2.5-m dia, spherical mirror which focuses solar radiation on a movable, cylindrical absorber tracking the sun. This work is an extension of earlier tests with a similar collector in which output temperatures up to 150/sup 0/C were obtained with water. The present system, using a mineral-oil-based heat transfer fluid, was capable of heating the fluid up to 300/sup 0/C under steady-state conditions. The direct radiation efficiency ranged from 50 percent at low temperatures up to 30 percent near 300/sup 0/C, showing the SRTA to be an effective concentrating collector for the intermediate temperature range which can be constructed at relatively low cost.
Research Organization:
Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, Haifa
OSTI ID:
6282266
Journal Information:
J. Sol. Energy Eng.; (United States), Journal Name: J. Sol. Energy Eng.; (United States) Vol. 104:4; ISSN JSEED
Country of Publication:
United States
Language:
English