Measurements and Model Development for R-400 Series Refrigerants

A literature survey to identify the available thermodynamic property data for several R-400 series refrigerants and the binary pairs comprising these blends is conducted. The most accurate data are evaluated. Vapor-liquid equilibrium properties (bubble point pressure and liquid density) and single p...

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Bibliographic Details
Published in:ASHRAE transactions 2004-01, Vol.110, p.3-16
Main Author: Geller, Vladimir
Format: Article
Language:English
Online Access:Get full text
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Summary:A literature survey to identify the available thermodynamic property data for several R-400 series refrigerants and the binary pairs comprising these blends is conducted. The most accurate data are evaluated. Vapor-liquid equilibrium properties (bubble point pressure and liquid density) and single phase liquid PVT properties are measured for the binary mixtures R-22/124, R-22/125, R-22/142b, R-22/152a, R-124/142b, and R-124/152a, and also for R-401A (R-22/ 152a/124 [53/13/34]), R-402A (R-125/290/22 [60/2/38]), and R-409A (R-22/124/142b [60/25/15]). Based on the measured thermodynamic property data together with applicable literature data, the binary interaction parameters in the LemmonJacobsen (1999) mixture model are fitted for all mixtures studied. The experimental data are compared with the values calculated from REFPROP 6.0 with the original and with the corrected binary interaction parameters.
ISSN:0001-2505