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Prediction of two-phase pressure drop and void fraction in microchannels using probabilistic flow regime mapping

Authors
Journal
International Journal of Heat and Mass Transfer
0017-9310
Publisher
Elsevier
Publication Date
Volume
49
Identifiers
DOI: 10.1016/j.ijheatmasstransfer.2006.01.034
Keywords
  • Two-Phase Flow
  • Microchannels
  • Pressure Drop
  • Void Fraction
  • Probabilistic Mapping

Abstract

Abstract Probabilistic two-phase flow map pressure drop and void fraction models are developed for 6-port microchannels in order to provide a more accurate and common means of predicting void fraction and pressure drop. The models are developed for R134a, R410A, and air–water in 6-port microchannels at 10 °C saturation temperatures, qualities from 0 to 1, and mass fluxes varying from 50 to 300 kg/m 2 s. The probabilistic flow map models developed are found to accurately predict void fraction and pressure drop for the entire quality range and for all three fluids.

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