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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

FILM CONDENSATION OF BINARY REGRIGERANT VAPOURS ON A HORIZONTAL TUBE

Get access (open in a dialog) DOI: 10.1615/IHTC7.400
pages 71-76

要約

Heat transfer coefficients are measured for the condensation of quiescent binary refrigerant vapours of R12-R114 and R114-R11 mixtures on a horizontal tube over a wide range of mass fraction of each component. The experimental results agree well with the theoretical prediction derived by the authors on the basis-of the two-phase boundary layer theory. Observation of the condensate film of R114-R11 mixtures reveals the appearance of ringwise film, and the turbulence of the rings increases the heat transfer coefficients. In addition, the influence of air in pure and binary vapours on the heat transfer coefficients is also tested from a practical point of view.