The Effect of Irradiation Directional Distribution on Absorption in Volumetric Solar Receivers

Author:

Doron P.1,Kribus A.1

Affiliation:

1. Department of Environmental Sciences and Energy Research, The Weizman Institute of Science, Rehovot 76100, Israel

Abstract

Volumetric solar absorbers are designed to enable the penetration of radiation deep into the absorber in order to improve the efficiency of the energy transfer from incoming radiation to the working fluid. The design of such absorbers is usually based on the irradiation energy flux distribution. We show that the directional features of the irradiation also affect the absorption characteristics of volumetric absorbers, present criteria for the characterization of directional attributes, and describe a method for their calculation. The significance of the directional data is demonstrated for two types of volumetric absorbers. Receiver design and modeling guidelines are presented.

Publisher

ASME International

Subject

Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment

Reference12 articles.

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3. Buck, R., Biehler, T., and Heller, P., 1992, “Advanced volumetric receiver-reactor for solar methane reforming,” Proc. 6th International Symp. Solar Thermal Concentrating Technologies, Vol. 1, pp. 395–405.

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