[article] inJournal of heat transfer > Vol. 134 N° 7 (Juillet 2012) . - 11 p.
Titre : |
Two-phase heat transfer and bubble characteristics in a microchannel array |
Type de document : |
texte imprimé |
Auteurs : |
T. P. Lagus, Auteur ; F. A. Kulacki, Auteur |
Année de publication : |
2012 |
Article en page(s) : |
11 p. |
Note générale : |
heat transfer |
Langues : |
Anglais (eng) |
Mots-clés : |
microchannels flow boiling bubble formation vapor slug flow visualization |
Index. décimale : |
536 Chaleur. Thermodynamique |
Résumé : |
Heat transfer coefficients and bubble motion characteristics are reported for two-phase water flow in an array of 13 equally spaced microchannels over an area of 1 cm2. Each channel has Dh = 451 ± 38 µm, W/H = 0.8, and L/Dh = 22.2. Uniform heat flux is applied through the base, and wall temperatures are determined from the thermocouple readings corrected for heat conduction effects. The upper surface is insulated and transparent. Single-phase heat transfer coefficients are in a good agreement with comparable trends of existing correlations for developing flow and heat transfer, although a difference is seen due to the insulated upper surface. Two-phase heat transfer coefficients and flow characteristics are determined for 221 |
DEWEY : |
536 |
ISSN : |
0022-1481 |
En ligne : |
http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000007 [...] |
[article] Two-phase heat transfer and bubble characteristics in a microchannel array [texte imprimé] / T. P. Lagus, Auteur ; F. A. Kulacki, Auteur . - 2012 . - 11 p. heat transfer Langues : Anglais ( eng) in Journal of heat transfer > Vol. 134 N° 7 (Juillet 2012) . - 11 p.
Mots-clés : |
microchannels flow boiling bubble formation vapor slug flow visualization |
Index. décimale : |
536 Chaleur. Thermodynamique |
Résumé : |
Heat transfer coefficients and bubble motion characteristics are reported for two-phase water flow in an array of 13 equally spaced microchannels over an area of 1 cm2. Each channel has Dh = 451 ± 38 µm, W/H = 0.8, and L/Dh = 22.2. Uniform heat flux is applied through the base, and wall temperatures are determined from the thermocouple readings corrected for heat conduction effects. The upper surface is insulated and transparent. Single-phase heat transfer coefficients are in a good agreement with comparable trends of existing correlations for developing flow and heat transfer, although a difference is seen due to the insulated upper surface. Two-phase heat transfer coefficients and flow characteristics are determined for 221 |
DEWEY : |
536 |
ISSN : |
0022-1481 |
En ligne : |
http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000007 [...] |
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