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.
Issue Section:
Research Papers
1.
Sacadura, J. F., “Measurement Techniques for Thermal Radiative Properties,” in Proceedings of the Ninth International Heat Transfer Conference (Hemisphere, New York, 1990), Vol. 1, pp. 207–22.
2.
Kan
Valery V.
Riskiev
Tookhtapylat T.
Salikhov
Temur P.
The Probing-Flash Method in the Study of the Radiation Properties of Refractory Materials
,” High Temperatures-High Pressures
, 1992
, Vol. 24
, pp. 659
–64
.3.
Markham
J. R.
Lewandowski
A.
FT-IR Measurements of Emissivity and Temperature During High Flux Solar Processing
,” ASME JOURNAL OF SOLAR ENERGY ENGINEERING
, February 1996
, Vol. 118
, pp. 20
–29
.4.
Hernandez
D.
Olalde
G.
Bicolar Pyroreflectometer Using an Optical Fibre Probe
,” Rev. Sci. Instrum
, December 1995
, Vol. 66
, No. 12
, pp. 5548
–51
.5.
Hernandez
D.
Olade
G.
Characterization of an Optical-Fiber Reflectometer for In Situ Measurement Applications
,” Applied Optics
, December 1995
, Vol. 34
, No. 34
, pp. 7952
–58
.6.
Nicodemus
F. E.
Directional Reflectance and Emissivity of an Opaque Surface
,” Applied Optics
1965
, Vol. 4
, pp. 767
–773
.7.
Touloukian, Y. S., and De Witt, D. P., TRPC Data Series, 1972, Vol. 8.
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