About this Engineering article

Working fluids for an absorption system based on R124 (2-chloro-1,1,1,2,-tetrafluoroethane) and organic absorbents by I Borde; M Jelinek; N.C Daltrophe is a Engineering article available to read on EtoBox.

The possibility of using R124 (2-chloro-l,l,l,2,-tetrafluoroethane, CHC1FCF3) and organic absorbents as working fluids in absorption heat pumps was investigated. Various classes of organic compounds, all commercially available, were tested as absorbents for possible combination with R124; the absorbents included DMAC (N',N'-dimethylacetamide, CaH9NO), NMP (N-methyl-2-pyrrolidone, CsH9NO), MCL (N-methyl e-caprolactam, C7HI3NO), DMEU (dimethylethylene urea, CsH10N20), and DMETEG (dimethylether tetraethyleneglycol, C~0H2205). To evaluate the performance of a candidate refrigerant-absorbent pair in a refrigeration or heat pump cycle, the thermophysical properties of the pure components and the mixture and the equilibrium and transport properties have to be determined, either from experimental data or by prediction methods. The thermal stability of the refrigerant-absorbent must also be tested. A method for the calculation of the concentration in the liquid and gas phases and the excess thermodynamic properties of the mixture as a function of the system temperature and pressure based on our experimental setup is described. On the basis of vapor-liquid equilibrium measurements, density a

Author

I Borde; M Jelinek; N.C Daltrophe

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0140-7007)

Published

1997

Language

EN

Field

Engineering (Physical Sciences)