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Phase and viscosity behaviour of refrigerant-lubricant mixtures.

Author(s) : QUIÑONES-CISNEROS S. E., GARCÍA J., FERNÁNDEZ J., et al.

Type of article: Article, IJR article

Summary

The understanding of thermophysical properties and phase behaviour of refrigerant-lubricant oil mixtures is highly important for the optimal design of refrigeration and air-conditioning systems. Refrigerant-lubricant mixtures, which are likely to have strong asymmetry, can show complex phase behaviour such as closed miscibility gaps, open miscibility gaps, liquid-liquid-vapour equilibrium, and even barotropic phenomena (density inversions). In fact, the type of phase behaviour that refrigerant-lubricant mixtures may show is linked to the transition between different types of phase diagrams, mainly as a function of the molecular asymmetry. This also has a profound effect in the mixture transport properties. Thus, in this work the general aspects of phase and viscosity behaviour linked to the type of asymmetry found in refrigerant-lubricant mixtures are discussed in the context of phase behaviour phenomenology.

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Pages: 714-724

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Details

  • Original title: Phase and viscosity behaviour of refrigerant-lubricant mixtures.
  • Record ID : 2005-1638
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 28 - n. 5
  • Publication date: 2005/08

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