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Average heat transfer coefficient during the direct evaporation of a liquid drop
Author(s) -
Adams A. E. S.,
Pinder K. L.
Publication year - 1972
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.5450500605
Subject(s) - prandtl number , heat transfer coefficient , nusselt number , thermodynamics , heat transfer , drop (telecommunication) , isopentane , chemistry , evaporation , churchill–bernstein equation , phase (matter) , materials science , analytical chemistry (journal) , mechanics , chromatography , reynolds number , turbulence , physics , telecommunications , biochemistry , organic chemistry , computer science , catalysis
A dilatometric method was combined with a ciné photographic technique to obtain average heat transfer coefficients for the evaporation of droplets of isopentane and cyclopentane in a continuous phase of 0.0%, 56.02%, 73.07% and 77.06% glycerine‐water solutions. These average heat transfer coefficients and those calculated from the data of Prakash and Sideman were correlated by an equation combining the dispersed phase Nusselt number with the continuous phase Prandtl number, the liquid phase Bond number and a liquid viscosity ratio. The dilatometric method of volume measurement was found to be better than the direct photographic method.