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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-421-2

International Heat Transfer Conference 15
August, 10-15, 2014, Kyoto, Japan

One Dimensional Thermal Analysis of Solar Air Receiver Using Silicon Carbide Ceramic Foam

Get access (open in a dialog) DOI: 10.1615/IHTC15.pmd.008278
pages 6519-6528

Abstract

Air is a most promising heat transfer fluid used in the concentrated solar power(CSP) to improve the system electricity generation efficiency. The excellent physical characteristics under high temperature of silicon carbide ceramic foam make it suitable to be the absorber material in volumetric air receiver. In this paper, a one dimensional physical model based on the radiative energy transportation equation is established. Rosseland model is used to describe the thermal process inside the silicon carbide ceramic foam while heated by the concentrated solar radiation. The one dimensional equation is solved using finite difference method and Newton Raphson method. The calculated results show that the thickness and the size of the ceramic foam are the most important design parameters. Such analysis can give good guidance for solar air receiver using silicon carbide ceramic foam as the absorber.