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ISSN Online: 2377-424X

ISBN Print: 0-89116-299-2

International Heat Transfer Conference 7
September, 6-10, 1982, Munich, Germany

INVESTIGATION OF HEAT TRANSFER PROCESSES DURING FILM BOILING IN STEM-GENERATING CHANNEL

Get access (open in a dialog) DOI: 10.1615/IHTC7.1320
pages 421-426

Аннотация

A technique for calculation of heat transfer to a disperse steam - water flow in post-critical region of a steam generating channel is developed. The results of numerical experiments show that the presence of liquid drops impacting with the wall change the momentum and heat transfer processes in the vapour flow. This phenomenon leads to deteriorates of the whole heat transfer to the two-phase disperse flow, while the drops impacting with the wall remove maximum 10-15% of the heat supplied to the channel wall. Good agreement is obtained between the calculation results and the experimental measurements of the temperature of the steam-generating tubes wall heated by electric current, with a diameters of 8 and 12 mm, pressure 10 MPa, mass flow rates 1400—1500 kg/m2 sec, and heat fluxes 2.9−8.7 105w/m2.