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The effect of surface roughness on condensing steam
Author(s) -
Nicol A. A.,
Medwell J. O.
Publication year - 1966
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450440309
Subject(s) - dimensionless quantity , reynolds number , heat transfer coefficient , mechanics , materials science , heat transfer , surface finish , surface roughness , range (aeronautics) , thermodynamics , composite material , physics , turbulence
Abstract Heal transfer coefficients for steam condensing on the outside of a smooth, and three artificially roughened pipes have been obtained for a condensate film Reynolds Number range of 1,500 to 9,000. Dimensionless local and mean heat transfer coefficient are presented, and in all cases significant increases in tht coefficients for the rough pipes are observed.