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Study of viscosity and thermal conductivity effects on condensation characteristics of some new alternative refrigerant mixtures
Author(s) -
Sami Samuel M.,
Comeau Joseph D.
Publication year - 2003
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.859
Subject(s) - refrigerant , thermodynamics , pressure drop , condensation , thermal conductivity , heat transfer coefficient , viscosity , heat transfer , chemistry , materials science , physics , heat exchanger
In this paper, a numerical study of the impact of the transport properties on the condensation characteristics of certain refrigerant mixtures is presented. New correlations have been developed to calculate the thermal conductivity and viscosity of some alternative refrigerant mixtures such as R‐507, R‐404A, R‐407C, and R‐410A. In addition, new improved condensation correlations have been developed and presented for predicting the heat transfer coefficient and pressure drop. The results clearly showed that the condensation characteristics were well predicted using the newly proposed correlations with mean deviation of ±10 and 20% for the heat transfer coefficient and pressure drop respectively. Copyright © 2002 John Wiley & Sons, Ltd.