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Gas Temperature Measurements in High Concentration Solar Furnace Environments: Evidence of Nonequilibrium Effects

Badie, Jean-Marie and Cassan, Ludovic and Granier, Bernard and Agudelo Florez, Sergio and Chejne Janna, Farid Gas Temperature Measurements in High Concentration Solar Furnace Environments: Evidence of Nonequilibrium Effects. (2007) Journal Of Solar Energy Engineering, 129 (4). 412-415. ISSN 0199-6231

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Official URL: http://dx.doi.org/10.1115/1.2769718

Abstract

Temperature measurements of the gas phase surrounding the hot front during material processing at the focus of a high concentration solar furnace can be achieved by coupled emission and absorption optical spectroscopy. The emitted light results from a fluorescence phenomenon of some vapor species from the heated sample excited by absorption of the incident concentrated beam. Absorption measurements were performed on these same species with a reference beam using the sun radiation as source. These coupled techniques led to consistent results and suggested the existence of a nonequilibrium Knudsen layer near the vaporizing surface. In this paper, we report measurements performed on YO diatomic molecule issuing from a melted sample of yttrium oxide.

Item Type:Article
Additional Information:Thanks to American Society of Mechanical Engineers. The definitive version is available at http://dx.doi.org/10.1115/1.2769718
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Universidad de Antioquia (COLOMBIA)
Other partners > Universidad Nacional de Colombia (COLOMBIA)
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Deposited By: Ludovic CASSAN
Deposited On:14 Jun 2013 09:53

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