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Numerical prediction of refrigerant mixtures' condensation inside enhanced surface vertical cylinders
Author(s) -
Sami S. M.,
Zhou Y.,
Allam M.
Publication year - 1994
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.4440180905
Subject(s) - refrigerant , condensation , thermodynamics , cylinder , momentum (technical analysis) , mechanics , materials science , physics , heat exchanger , mathematics , geometry , finance , economics
A lumped parameter model has been developed to predict the liquid filmwise condensation of pure refrigerants, as well as refrigerant mixtures, inside vertical cylinder with enhanced surfaces. The mathematical formulation is based on mass, momentum and energy balance. Several constitutive relationships have been established to describe the various phenomena during condensation. Numerical results indicate that the model fairly predicted the liquid filmwise condensation phenomenon, under various conditions.