Optical Fiber Reflectometer Coupled With a Solar Concentrator to Determine Solar Reflectivity and Absorptivity at High Temperature

[+] Author and Article Information
D. Hernandez, D. Antoine, G. Olalde, J. M. Gineste

Institut des matériaux et procédés (IMP), Centre National de la Recherche, Scientifique (CNRS), B.P. 5 66125, Font Romeu Cedex, France

J. Sol. Energy Eng 121(1), 31-35 (Feb 01, 1999) (5 pages) doi:10.1115/1.2888139 History: Received January 01, 1998; Revised September 01, 1998; Online February 14, 2008


Devices and methods are presented in which an optical fiber reflectometer and a solar concentrator are used to determine solar reflectivity and absorptivity for opaque and diffuse materials. The measurements can be taken at high temperature, the final aim is to reach 2500°C. Firstly we will present the specific reflectometer and its measurement principles. We will then describe the whole experimental hardware (solar concentrator, associated devices) and the method used to determine solar reflectivity and absorptivity. Finally, we will present examples of results obtained on a metallic sample.

Copyright © 1999 by The American Society of Mechanical Engineers
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