Vapour-liquid equilibrium measurements for binary mixtures of R32, R143a, R134a and R125 with a perfluoropolyether lubricant期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Vapour-liquid equilibrium measurements for binary mixtures of R32, R143a, R134a and R125 with a perfluoropolyether lubricant

Authors:	R Tesser R Gargiulo L Bragante

Institution:	^a Dipartimento di Chimica, Università di Napoli “Federico II”, Via Cinthia, Complesso Monte S. Angelo, 80126 Napoli, Italy ^b Solvay-Ausimont SpA, Porto Marghera, Venezia, Italy

Abstract:	In the present work, vapour-liquid equilibria of four binary systems refrigerant-lubricant oil have been investigated, CF₃CHF₂ (R125), CF₃CH₂F (R134a), CF₃CH₃ (R143a) and CH₂F₂ (R32) as refrigerants and a commercial perfluoropolyether (PFPE), Fluorolink D10H, as lubricant. Vapour-liquid equilibrium data, consisting of isothermal measurement of equilibrium pressure at a fixed composition, have been correlated with an extended Flory-Huggins equation and the corresponding parameters have been determined. Good agreement has been found between experimental data and the model predictions.

Keywords:	Refrigerants Vapour-liquid equilibria CF₃CHF₂ (R125) CF₃CH₂F (R134a) CF₃CH₃ (R143a) CH₂F₂ (R32) Perfluoropolyether
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