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ISSN Online: 2377-424X

ISBN Print: 0-89116-909-1

International Heat Transfer Conference 9
August, 19-24, 1990 , Jerusalem, Israel

HEAT AND MASS TRANSFER DURING THE DEPRESSURIZATTON INDUCED BY DIRECT CONTACT CONDENSATION OF STEAM ON A SUBCOOLED LIQUID JET

Get access (open in a dialog) DOI: 10.1615/IHTC9.3690
pages 57-62

Abstract

The experimental results of pressure and temperature transients induced by the direct contact condensation of saturated steam on a subcooled liquid jet in a test chamber are presented. The test chamber is a vertical 0.13 m I.D. , 0.70 m high cylindrical vessel. The jet nozzle diameter and its length are 0.002 m and 0.020 m respectively. The jet length ranges from 0.36 m to 0.48 m. The investigated parameters range is : initial pressure from 0.18 to 0.35 MPa , outlet nozzle temperature from 18 to 60 °C, flow rate from 0.005 to 0.025 Kg/s. During the transient the jet flow rate and the outlet nozzle temperature are kept constant. From the experimental data the condensation rate on the liquid jet and the possible flashing are derived. A simplified model to estimate the steam temperature transient is presented.