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Azeotropy in natural and artificial refrigerant blends.
Author(s) : ARTEMENKO S., KHMEL'NJUK M., MAZUR V.
Summary
A new point of view for the prediction of azeotrope formation between components in a mixture that does not require vapour-liquid equilibrium calculations is developed. The method employs neural networks and a global phase diagram approach to correlate azeotropic data for binary mixtures based only on critical properties of the individual components in refrigerant blend. Modelling of thermodynamic and phase behaviour has been carried out. Experimental phase equilibria data for the binary mixtures of natural and alternative refrigerants (R218, R134a, R152a, R32) + R290 (R218, R134a, R152a, R32, RC318) + R600a (R600, R600a, R290, R218, R152a, RC318, R170) + R717 (R290, R600a, R600) + R744 were obtained for the temperature range 220 to 300 K at different concentrations.
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Pages: 2004-2
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Details
- Original title: Azeotropy in natural and artificial refrigerant blends.
- Record ID : 2005-2436
- Languages: English
- Source: Natural Working Fluids 2004: 6th IIR-Gustav Lorentzen Conference
- Publication date: 2004/08/01
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Indexing
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Themes:
HFCs;
Ammonia;
CO2;
Hydrocarbons;
Other refrigerants;
Blends - Keywords: Rc318; R218; R134a; Isobutane; Calculation; Ammonia; R32; R170; R152a; Thermodynamic property; Physical property; Propane; Process; Azeotropic mixture; Refrigerant; CO2
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