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R-12, R-134a, and R-152a: correlation of their thermodynamic properties and comparisons of performance indicators when used in an ideal vapour-compression cycle.
Author(s) : CATUBAO G. A., CATUBAO N. A., MANCAO D. Y.
Summary
This research study presents the results of a computer simulation of an ideal vapour-compression refrigeration cycle using R-12 (an ozone depleting refrigerant) and two non-CFC refrigerants. The simulation program incorporates explicitly correlated saturated and superheated properties of R-12, R-134a, and R-152a. The simulation program was used to generate graphs showing the relative performance of the refrigerants on the following performance indicators: a) volumetric flow rates at compression suction per ton of refrigeration; b) COP; c) pressure ratio; d) mass flow rate of refrigerant per ton of refrigeration; e) discharge temperature; and f) refrigerating effect. From the graphs generated, analyses were made to determine the potentiality of R-134a and R-152a as replacements of R-12.
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Pages: ICR07-B1-62
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Details
- Original title: R-12, R-134a, and R-152a: correlation of their thermodynamic properties and comparisons of performance indicators when used in an ideal vapour-compression cycle.
- Record ID : 2008-0112
- Languages: English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Publication date: 2007/07/21
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Indexing
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Themes:
CFCs;
Compression systems;
HFCs - Keywords: R134a; R152a; R12; Compression system; Simulation; Performance; Modelling; COP; Refrigerant
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