Thermodynamic properties of mixtures of ozone-safe refrigerants FC218-HFC134a and HFC152a-HFC134a.
[In Russian. / En russe.]
Author(s) : CHERNJAK Ju. A.
Type of monograph: Doctoral thesis
Summary
Massive amounts of information on liquid-vapour equilibrium and the thermal properties of these mixtures are obtained by using an experimental variable-volume apparatus with optical cell and investigations of these systems' critical parameters are carried out. A new method of calculating the density of saturated vapour is developed and its validity tested. It was ascertained that the standard refrigeration parameters of the mixture R152a-R134a at 0.8 concentration come closest of all to those of R12 and surpasse those of R134a. In addition, it is non-flammable and soluble in commercially available oils which makes it a very promising refrigerant for the purpose of designing new refrigerating equipment. Thermodynamic tables of reference data are compiled. A 7-page dissertation abstract and a description of the results in the English language is included. During the Hague Congress of the IIR, August 19-25, 1995, the author was awarded the IIR Sadi Carnot Prize to young researchers for this work.
Details
- Original title: [In Russian. / En russe.]
- Record ID : 1996-0608
- Languages: Russian
- Publication: Odessa institute of low temperature engineering and energetics, thermophysical property laboratory - Ukraine/Ukraine
- Publication date: 1994
- Source: Source: 195 p. (21 x 29.7); fig.; tabl.
- Document available for consultation in the library of the IIR headquarters only.
Indexing
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Themes:
HFCs;
Blends - Keywords: R134a; Equilibrium; Measurement; Liquid-vapour; Density; R152a; Thermodynamic property; Substitute; Mixture; Refrigerant
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