Abstract

The effect of mixture composition on the heat transfer coefficient during forced convection condensation of R22 and R12 mixtures inside a horizontal tube has been investigated. The effect of mixture composition is complex and the heat transfer coefficients have not been found to vary in a simple manner with the composition. The generalized correlation which best fits the R22/R12 mixture heat transfer data is: Nu=2.82Pr 1 3 (h fg /c p ΔT) 0.365Re v 0.146

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