Document IIF
Une étude expérimentale sur la chute de pression diphasique et les caractéristiques de transfert de chaleur du FC-72 à l'intérieur de microcanaux.
An experimental study on two-phase pressure drop and heat transfer characteristics of FC-72 in microchannels.
Auteurs : JANG Y. H., KIM B. S., KIM Y. C., et al.
Résumé
The advance in electronic technology enables a large number of circuitry to be packed in small volume. Since the use of a finned heat sink to these electronic components is limited by manufacturing constraints and noise level, the use of liquid cooling is a promising way of maintaining low surface temperature by dissipating the large heat flux. In this study, the heat transfer and pressure drop characteristics of a microchannel heat exchanger, which was designed for liquid cooling of electronic components, were investigated by varying operating conditions and test geometries. FC-72 was used as a working fluid. The microchannel heat exchanger was made with rectangular shape having hydraulic diameters of 61.1 and 278.0 micrometers in regular intervals with a channel length of 250 mm. A direct heating method by a DC power supply was adapted to supply heat load to the test section. The heat flux provided by the direct heating method ranged from 0.6 to 45.1 kW/m2. The two-phase heat transfer rate from the heat source to the working fluid was measured, and two-phase pressure drop characteristics of the test section were also investigated.
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Pages : ICR07-B2-912
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Détails
- Titre original : An experimental study on two-phase pressure drop and heat transfer characteristics of FC-72 in microchannels.
- Identifiant de la fiche : 2008-0561
- Langues : Anglais
- Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Date d'édition : 21/08/2007
Liens
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Indexation
- Thèmes : Transfert de chaleur
- Mots-clés : Électronique; Microcanal; Transfert de chaleur; Refroidissement; FC-72; Experimentation; Frigoporteur; Échangeur de chaleur; Composant; Chute de pression
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