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Modelling absorption of pure refrigerants and refrigerant mixtures in lubricant oil.

Author(s) : GESSNER T. R., BARBOSA J. R. Jr

Type of article: Article, IJR article

Summary

This paper addresses the problem of absorption of refrigerant vapour in a stagnant layer of lubricant oil. The bulk motion of the solute is described in terms of apparent diffusion coefficients that encompass both molecular diffusion and possible macroscopic motion induced by liquid density instability and surface tension. In absorption of refrigerant mixtures, diffusion in the vapour and liquid phases are coupled with a thermodynamic model for interfacial equilibrium. Results are compared with experimental data available in the literature for absorption of several refrigerants in polyol ester oil (POE68). The adequacy of the formulation is assessed in the light of its basic assumptions and performance of the model.

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Pages: 773-780

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Details

  • Original title: Modelling absorption of pure refrigerants and refrigerant mixtures in lubricant oil.
  • Record ID : 2006-1646
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 5
  • Publication date: 2006/08

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