Experimental results of flow boiling of water in a vertical microchannel

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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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