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Computer simulation of the optical properties of high-temperature cermet solar selective coatings

Khalaji Asadi , M (2005) Computer simulation of the optical properties of high-temperature cermet solar selective coatings. Solar Energy, 78 . pp. 235-241.

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Abstract

Acomputer simulation is developed to calculate the solar absorptance and thermal emittance of various configurations of cermet solar selective coatings. Special attention has been paid to those material combinations, which are commonly used in high-temperature solar thermal applications. Moreover, other material combinations such as two-, threeand four-cermet-layer structures as solar selective coatings have been theoretically analyzed by computer simulation using three distinct physical models of Ping Sheng, Maxwell–Garnett and Bruggeman. The novel case of two-cermet-layer structure with different cermet components has also been investigated. The results were optimized by allowing the program to manipulate the metal volume fraction and thickness of each layer and the results compared to choose the best possible configuration. The calculated results are within the range of 0.91–0.97 for solar absorptance and 0.02– 0.07 for thermal emittance at room temperature. � 2004 Published by Elsevier Ltd.

Item Type:Article
Uncontrolled Keywords:Solar selective absorber; Cermet; Simulation; Effective medium theory; Optical properties
Subjects:T Technology > TJ Mechanical engineering and machinery
Academic Subject One:Solar Energy
Departments / MOR / COE:Mission Oriented Research > Energy
ID Code:11671
Deposited By: Dr Morteza Khalaji Assadi
Deposited On:19 May 2015 03:39
Last Modified:19 May 2015 03:39

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