Titre :
|
Pressure drop and heat transfer of microfinned microchannels
|
Auteurs :
|
C. Monroe ;
A. Newell ;
J. Chato ;
Proceedings of the 9th international refrigeration conference, Purdue USA, 16-19 july 2002 (2002; USA)
|
Type de document :
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article/chapitre/communication
|
Année de publication :
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2002
|
Format :
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8 p.
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Langues:
|
= Anglais
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Catégories :
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THERMIQUE THERMODYNAMIQUE
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Mots-clés:
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PRESSION
;
GOUTTE
;
TRANSFERT DE CHALEUR
;
EVAPORATION
|
Résumé :
|
The primary goal of this project is to characterize the pressure drop and heat transfer of internally enhanced aluminium microchannel tubes in evaporation. Heat transfer and pressure drop tests are being conducted on a smooth walled 6-port microchannel test section and an enhanced test section with hydraulic diameters of 1.69 mm and 0.77 mm, respectively. Test results for R134a with mass fluxes from 100 to 300 kg/m²-s, at a saturation temperature of 5 C are presented. The results are compared to models to help characterize the effects of the internal enhancements.
|