Solubility of nitrogen in one-component refrigerants / Václav Vinš in International journal of refrigeration, Vol. 34 N° 8 (Décembre 2011)  

Public ISBD [article]  inInternational journal of refrigeration > Vol. 34 N° 8 (Décembre 2011) . - pp. 2109–2117 Titre : Solubility of nitrogen in one-component refrigerants : Prediction by PC-SAFT EoS and a correlation of Henry’s law constants Titre original : Solubilité de l'azote dans les frigorigènes à un seul composant : prévision par l'équation d'état PC-SAFT et par corrélation des constantes de la loi de Henry Type de document : texte imprimé Auteurs : Václav Vinš, Auteur ; Jan Hrubý, Auteur Année de publication : 2012 Article en page(s) : pp. 2109–2117 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : Equation of state Nitrogen Non-condensable gas Refrigerant Solubility Résumé : Even small amount of non-condensable gas – mostly air or nitrogen – present inside a compression refrigerating circuit may decrease the efficiency of the cooling system. So far, a quantitative assessment of the effect of dissolved gases on the cooling circuit performance is hindered by unavailability of suitable thermodynamic models. In this study, we analyzed the solubility of nitrogen in the following refrigerants: hydrochlorofluorocarbons (HCFC) R22, R123, R124; hydrofluorocarbons (HFC) R23, R32, R125, R134a; perfluorocarbons (PFC) R14, R116, R218, R-3-1-10; and hydrocarbons (HC) R290, R600a. Perturbed-Chain (PC) Statistical Associating Fluid Theory (SAFT) and its modification for polar fluids PCP-SAFT were used to model the temperature dependence of the Henry’s law constant of nitrogen. A simple correlation of the Henry’s law constants valid over large temperature ranges was developed, suitable for assessment of the adverse effects of dissolved nitrogen (and approximately air) on the performance of compression cooling systems. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711001630 [article] Solubility of nitrogen in one-component refrigerants = Solubilité de l'azote dans les frigorigènes à un seul composant : prévision par l'équation d'état PC-SAFT et par corrélation des constantes de la loi de Henry : Prediction by PC-SAFT EoS and a correlation of Henry’s law constants [texte imprimé] / Václav Vinš, Auteur ; Jan Hrubý, Auteur . - 2012 . - pp. 2109–2117. Génie mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 34 N° 8 (Décembre 2011) . - pp. 2109–2117 Mots-clés : Equation of state Nitrogen Non-condensable gas Refrigerant Solubility Résumé : Even small amount of non-condensable gas – mostly air or nitrogen – present inside a compression refrigerating circuit may decrease the efficiency of the cooling system. So far, a quantitative assessment of the effect of dissolved gases on the cooling circuit performance is hindered by unavailability of suitable thermodynamic models. In this study, we analyzed the solubility of nitrogen in the following refrigerants: hydrochlorofluorocarbons (HCFC) R22, R123, R124; hydrofluorocarbons (HFC) R23, R32, R125, R134a; perfluorocarbons (PFC) R14, R116, R218, R-3-1-10; and hydrocarbons (HC) R290, R600a. Perturbed-Chain (PC) Statistical Associating Fluid Theory (SAFT) and its modification for polar fluids PCP-SAFT were used to model the temperature dependence of the Henry’s law constant of nitrogen. A simple correlation of the Henry’s law constants valid over large temperature ranges was developed, suitable for assessment of the adverse effects of dissolved nitrogen (and approximately air) on the performance of compression cooling systems. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711001630

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