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Boiling Flow Pressure Drop Modeling in a Minichannel

[+] Author Affiliations
D. Brutin, L. Tadrist

Ecole Polytechnique Universitaire de Marseille, Marseille, France

Paper No. ICMM2003-1085, pp. 675-682; 8 pages
doi:10.1115/ICMM2003-1085
From:
  • ASME 2003 1st International Conference on Microchannels and Minichannels
  • 1st International Conference on Microchannels and Minichannels
  • Rochester, New York, USA, April 24–25, 2003
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-3667-3
  • Copyright © 2003 by ASME

abstract

The present paper deals with two-phase flow pressure drop modeling. This is based on solving the mass, momentum and energy balance equations in steady state conditions. In the two-phase zone, the liquid-vapor is assumed to be a homogeneous fluid. The calculated pressure drop variation is found to be similar to the experimental one when the two–phase flow is steady. In the unsteady state conditions characterized by high amplitude of the pressure fluctuations, the computed pressure drop is found to be different from the experimental mean pressure drop. This difference is all the higher as the pressure fluctuation is high.

Copyright © 2003 by ASME

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