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ISSN Online: 2377-424X

ISBN CD: 1-56700-226-9

ISBN Online: 1-56700-225-0

International Heat Transfer Conference 13
August, 13-18, 2006, Sydney, Australia

PHASE DISTRIBUTION AND PRESSURE DROP OF AIR-WATER FLOWS IN A HORIZONTAL IMPACTING TEE JUNCTION

Get access (open in a dialog) DOI: 10.1615/IHTC13.p12.290
12 pages

Abstract

Phase-distribution and pressure-drop data were generated for air-water flows in a horizontal impacting tee junction. All three sides of the junction (37.8-mm i.d.) were oriented horizontally. The data correspond to a junction pressure of 1.5 bar (abs), ambient temperature, inlet flow regimes of wavy, stratified, and annular, and a wide range of mass splits at the junction. Most of the range for the phase-distribution data corresponds to conditions that were untested in previous investigations. In general, it was found that the phases did not distribute themselves evenly between the two outlets unless the mass split was equal. Increasing the liquid flow rate at a fixed gas flow rate caused the quality to decrease in the outlet receiving lower total mass and to increase in the outlet receiving higher total mass. On the other hand, increasing the gas flow rate at a fixed liquid flow rate produced the opposite trend. There is a serious lack of data in the literature on the two-phase pressure drop in impacting tee junctions. The present data therefore add substantially to existing data. An empirical correlation for the pressure drop was developed and shown to be capable of good agreement with the present data.