IIR document
Thermodynamic properties of organic refrigerant absorbent working fluids based on HFC refrigerants R32 and R125.
Author(s) : DVOSKIN N., JELINEK M., LEVY A., et al.
Summary
Calculation of thermodynamic properties of binary and ternary organic mixtures of refrigerants R32 (difluoromethane), R125 (pentafluoroethane) and absorbent DMAc (dimethylacetamide) at equilibrium as function of temperature and pressure is presented. These data are essential for examining the possibility of using ternary mixtures in absorption refrigeration systems. VLE data for the binary refrigerant-absorbent mixtures were obtained experimentally (by static non-analytical method) and reduced using the Van Laar model for excess Gibbs free energy (GE). The equilibrium data for the refrigerant mixtures R32-R125 were taken from the literature. VLE data for the ternary mixtures were calculated using a prediction model that was developed based on a multicomponent form of the Van Laar equation for GE with experimental parameters of the binary mixtures.
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Details
- Original title: Thermodynamic properties of organic refrigerant absorbent working fluids based on HFC refrigerants R32 and R125.
- Record ID : 2006-0754
- Languages: English
- Source: Commercial Refrigeration. Thermophysical Properties and Transfer Processes of Refrigerants. Proceedings of the IIR International Conferences.
- Publication date: 2005/08/02
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Indexing
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Themes:
HFCs;
Absorption and adsorption systems;
Blends - Keywords: Calculation; Absorption system; R32; R125; Thermodynamic property; Ternary mixture; Binary mixture
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