Název:
Prediction of surface tension of binary mixtures with the parachor method
Autoři:
Němec, Tomáš Typ dokumentu: Příspěvky z konference Konference/Akce: Experimental Fluid Mechanics 2014, Český Krumlov (CZ), 2014-11-18 / 2014-11-21
Rok:
2015
Jazyk:
eng
Abstrakt: The parachor method for the estimation of the surface tension of binary mixtures is modified by considering temperature-dependent values of the parachor parameters. The temperature dependence is calcu- lated by a least-squares fit of pure-solvent surface tension data to the binary parachor equation utilizing the Peng-Robinson equation of state for the calculation of equilibrium densities. A very good agreement between experimental binary surface tension data and the predictions of the modified parachor method are found for the case of the mixtures of carbon dioxide and butane, benzene, and cyclohexane, respectively. The surface tension is also predicted for three refrigerant mixtures, i.e. propane, isobutane, and chlorodifluoromethane, with carbon dioxide.
Klíčová slova:
carbon dioxide; refrigerants; surface tension Číslo projektu: GAP101/10/1819 (CEP), GA13-23550S (CEP) Poskytovatel projektu: GA ČR, GA ČR Zdrojový dokument: EFM14 - EXPERIMENTAL FLUID MECHANICS 2014, ISSN 2100-014X
Instituce: Ústav termomechaniky AV ČR
(web)
Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0242219