Experimental results of flow boiling of water in a vertical microchannel

Experiments on flow boiling of water are carried out for a rectangular vertical channel with dimension 0.86 × 2.0 mm 2 (width × depth, hydraulic diameter d h = 1.2 mm). The Confinement number Co ∗ for the investigated range of operating parameters is about 2.2. So, applying the criterion Co ∗ > 0...

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Veröffentlicht in:	Experimental thermal and fluid science 2006-11, Vol.31 (2), p.111-119
Hauptverfasser:	Sobierska, Ewelina, Kulenovic, Rudi, Mertz, Rainer, Groll, Manfred
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Boiling Channels Confinement Design. Technologies. Operation analysis. Testing Electronics Exact sciences and technology Fluid dynamics Fluid flow Fluxes Fundamental areas of phenomenology (including applications) Heat transfer Instrumentation for fluid dynamics Integrated circuits Microchannel Microchannels Physics Pressure drop Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Visualisation
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Beschreibung
Zusammenfassung:	Experiments on flow boiling of water are carried out for a rectangular vertical channel with dimension 0.86 × 2.0 mm 2 (width × depth, hydraulic diameter d h = 1.2 mm). The Confinement number Co ∗ for the investigated range of operating parameters is about 2.2. So, applying the criterion Co ∗ > 0.5 for microchannels, the investigated channel has to be classified as “micro”. Investigations of heat transfer, pressure drop and flow pattern were carried out for different mass and heat fluxes and their relationships were analysed.
ISSN:	0894-1777 1879-2286
DOI:	10.1016/j.expthermflusci.2006.03.022