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Titre :
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Gravity scaling parameter for pool boiling heat transfer
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Auteurs :
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Rishi Raj, Auteur ;
Jungho Kim, Auteur ;
John McQuillen, Auteur
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Type de document :
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Article : texte imprimé
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Dans :
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Journal of heat transfer (Vol. 132 N° 9, Septembre 2010)
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Article en page(s) :
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pp. [091502-1/9]
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Note générale :
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Physique
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Langues :
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Anglais
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Index. décimale :
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536 (Chaleur. Thermodynamique)
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Tags :
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Scaling parameter Variable gravity Pool boiling Microgravity
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Résumé :
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Although the effects of microgravity, earth gravity, and hypergravity (>1.5 g) on pool boiling heat flux have been studied previously, pool boiling heat flux data over a continuous range of gravity levels (0–1.7 g) was unavailable until recently. The current work uses the results of a variable gravity, subcooled pool boiling experiment to develop a gravity scaling parameter for n-perfluorohexane/FC-72 in the buoyancy-dominated boiling regime (Lh/Lc>2.1). The heat flux prediction was then validated using heat flux data at different subcoolings and dissolved gas concentrations. The scaling parameter can be used as a tool to predict boiling heat flux at any gravity level in the buoyancy dominated regime if the data under similar experimental conditions are available at any other gravity level.
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DEWEY :
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536
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ISSN :
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0022-1481
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En ligne :
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http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode=strresults&sort=chron&maxdisp=25&threshold=0&pjournals=JHTRAO&pyears=2010&possible1zone=article&fromyear=2010&fromvolume=132&fromissue=9&OUTLOG=NO&sti=yes&viewabs=JHTRAO&key=D
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