IIR document
The effect of oil in refrigeration: current research issues and critical review of thermodynamic aspects.
Author(s) : YOUBI-IDRISSI M., BONJOUR J.
Type of article: Article, IJR article
Summary
A lubrication agent is necessary in almost all the refrigeration vapour compression systems, particularly for the correct operation of the compressor. However, a certain portion of the oil always circulates with the refrigerant through the cycle. This circulation is at the origin of a deviation from the theoretical behaviour (i.e. based on pure refrigerant) of the components. This article aims at reviewing the oil-related researches in the field of refrigeration. Previous reviews in the literature focused on the thermo-hydraulic consequences of the presence of oil; the authors analyse its thermodynamic consequences. In a first part, a brief literature review will give an overview of current scientific and technological issues concerning the impact of oil on components or on whole refrigeration systems. The typical approaches and methods employed to address this problem is described. These researches require sound tools for the evaluation of thermodynamic properties of refrigerant-oil mixtures. The second part of this article is hence a critical review of these tools, and focuses particularly on liquid-vapour equilibrium, absorption-diffusion, and mixture enthalpy calculation.
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Details
- Original title: The effect of oil in refrigeration: current research issues and critical review of thermodynamic aspects.
- Record ID : 2008-0572
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 2
- Publication date: 2008/03
Links
See other articles in this issue (17)
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Indexing
- Themes: Compression systems
- Keywords: Solubility; Refrigerating system; Measurement; Lubrication; Compression system; Process; Modelling; Oil
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