Transport properties of ternary near-azeotropic mixtures

In recent years considerable interest has developed in evaluation of alternative refrigerants to CFC12. This paper presents the transport properties of near-azeotropic ternary mixtures of HCFC22, HCFC124 and HFC152a of different composition, namely HCFC22/HCFC124/HFC152a (33/52/15),(53/34/13),(61/28...

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Bibliographic Details
Published in:International journal of refrigeration 1995-02, Vol.18 (2), p.132-138
Main Authors: Agarwal, R.S, Ramaswamy, M, Srivastava, V.K
Format: Article
Language:English
Subjects:
8124
Applied sciences
calcul
calculation
chaleur massique
conductivité thermique
Energy
Energy. Thermal use of fuels
Exact sciences and technology
frigorigéne
mixture
mélange
physical property
propriðé physique
R124
R152a
R22
refrigerant
Refrigerants
Refrigerating engineering
Refrigerating engineering. Cryogenics. Food conservation
specific heat
substitut
substitute
thermal conductivity
viscosity
viscosité
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Summary:In recent years considerable interest has developed in evaluation of alternative refrigerants to CFC12. This paper presents the transport properties of near-azeotropic ternary mixtures of HCFC22, HCFC124 and HFC152a of different composition, namely HCFC22/HCFC124/HFC152a (33/52/15),(53/34/13),(61/28/11) and (36/40/24) respectively, computed over a wide range of temperatures using estimation techniques. The properties are presented in graphical form. Further correlations have been developed to express each property as a function of temperature to facilitate their use in the design of refrigeration systems. Au tours de ces derniéres années, on a accordé une attention toute particuliére à la mise au point de substituts pour le CFC12. L'article présente les propriétés de transport de mélanges ternaires quasi-azéotropiques à base de HCF22, HCFC124 et HFC152a, de différentes compositions. HCFC22/HCFC124/HFC152a (33/52/15), (53/34/13), (61128111) et (36140/24), respectivement, calculées à partir dune large plage de températures en utilisant des techniques d'estimation. Les propriétés sont présentées sous forme graphique. D'autres correlations ont été mises au point pour exprimer chaque proprieté en function de la température, afin de faciliter la conception des systémes frigorifiques
ISSN:0140-7007
1879-2081
DOI:10.1016/0140-7007(95)93896-R