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Titre :
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Design of a lab-scale rotary cavity-type solar reactor for continuous thermal dissociation of volatile oxides under reduced pressure (2011)
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Auteurs :
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Marc Chambon, Auteur ;
Stéphane Abanades, Auteur ;
Flamant, Gilles, Auteur
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Type de document :
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Article : texte imprimé
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Dans :
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Transactions of the ASME. Journal of solar energy engineering (Vol. 132 N° 2, Mai 2010)
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Article en page(s) :
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pp. [021006/1-7]
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Note générale :
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Energie Solaire
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Langues :
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Anglais
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Index. décimale :
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621.47
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Tags :
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Chemical reactors Solar absorber-convertors heating radiation Zinc compounds
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Résumé :
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A high-temperature lab-scale solar reactor prototype was designed, constructed and operated, allowing continuous ZnO thermal dissociation under controlled atmosphere at reduced pressure. It is based on a cavity-type rotating receiver absorbing solar radiation and composed of standard refractory materials. The reactant oxide powder is injected continuously inside the cavity and the produced particles (Zn) are recovered in a downstream ceramic filter. Dilution/quenching of the product gases with a neutral gas yields Zn nanoparticles by condensation. The solar thermal dissociation of ZnO was experimentally achieved, the reaction yields were quantified, and a first concept of solar reactor was qualified. The maximum yield of particles recovery in the filter was 21% and the dissociation yield was up to 87% (Zn weight content in the final powder) for a 5 NL/min neutral gas flow-rate (typical dilution ratio of 300).
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DEWEY :
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621.47
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ISSN :
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0199-6231
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En ligne :
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http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JSEEDO000132000002021006000001&idtype=cvips&gifs=Yes&ref=no
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