TWO-PHASE PRESSURE LOSS ACROSS ABRUPT CONTRACTlONS AND EXPANSIONS, STEAM-WATER AT 600 TO 1400 PSIA

1 January 2019

conference paper
Published by Begell House

https://doi.org/10.1615/ihtc3.380

Abstract

The two-phase pressure drop was measured for several contraction and expansion geometries, using steam and water at the following conditions: Pressure, 600 to 1400 psia (42.2 to 98.4 kg/cm²); Mass Flux, 0.25 × 10⁶ to 2.0 × 10⁶ lb/hr·ft² (33.9 to 271.2 g/sec·cm²); Quality, 0 to 90 percent; and Flow Orientation, vertical upward, horizontal, vertical downward. High speed moving pictures were taken of the flow pattern. Models were developed that predict values for the pressure loss across contractions and expansions which are in good agreement with measured values.

Keywords

STEAM
PRESSURE LOSS
MODELS
PHASE PRESSURE
PSIA
CONTRACTION AND EXPANSION
FLOW
SUP

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