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ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

SATURATED UP-FLOW BOILING IN A VERTICAL INTERNAL THREE-DIMENSIONAL FIN-TUBE AT MODERATE PRESSURES

Get access (open in a dialog) DOI: 10.1615/IHTC10.1500
pages 587-592

摘要

An experimental study has been carried out on saturated up-flow boiling of water in a vertical internal three-dimensional fin-tube at moderate pressures. The ranges of the important experimental parameters are as follows: pressure p =2.6 ~ 5.6 MPa; mass flux ("mass velocity") G =280 ~ 740 kg/m2 s; heat flux q = 290 ~ 910 kW/m2. The variation of the steam-water two-phase frictional pressure drop and boiling heat transfer characteristics with these parameters has been reported and the results are compared with those of a smooth tube. The corresponding correlations for the frictional pressure drop and the heat transfer coefficient have been established.