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RESEARCH PAPERS

An Experimental Investigation of a Stationary Reflector/Tracking Absorber Solar Collector at Intermediate Temperatures

[+] Author and Article Information
E. Fruchter, G. Grossman

Technion-Israel Institute of Technology, Haifa, Israel

F. Kreith

Solar Energy Research Institute, Golden, Colo. 80401

J. Sol. Energy Eng 104(4), 340-344 (Nov 01, 1982) (5 pages) doi:10.1115/1.3266327 History: Received December 31, 1981; Online November 11, 2009

Abstract

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°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°C under steady-state conditions. The direct radiation efficiency ranged from 50 percent at low temperatures up to 30 percent near 300°C, showing the SRTA to be an effective concentrating collector for the intermediate temperature range which can be constructed at relatively low cost.

Copyright © 1982 by ASME
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