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Experimental investigation of thermophysical properties of lubricant refrigerant mixtures.

Number: 1917

Author(s) : STOECKEL K., NOSBERS R., BARTA R. B., THOMAS C., HESSE U.

Summary

Due to the F-Gas Regulation and the Kigali Amendment of the Montreal Protocol, high-global warming potential (GWP) refrigerants such as R134a are no longer considered viable, especially for small household appliances. Besides natural refrigerants and pure low-GWP refrigerants, refrigerant blends, which are often zeotropic, are growing in popularity as a solution to meet the combined requirements of a low environmental impact with thermodynamic efficiency. In many cases, the substitution of the refrigerant also requires a substitution of the compressor lubricant. Especially for refrigerant blends, the resulting thermophysical properties of the lubricant-refrigerant mixture are unknown and cannot easily be determined. This paper presents the experimental investigation of some important thermophysical properties for binary and ternary lubricant-refrigerant mixtures based on a POE ISO VG68 lubricant with the refrigerants R152a and carbon dioxide (R744) and their zeotropic blends.

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Pages: 8

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Details

  • Original title: Experimental investigation of thermophysical properties of lubricant refrigerant mixtures.
  • Record ID : 30028897
  • Languages: English
  • Subject: Technology
  • Source: 6th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants
  • Publication date: 2021/09/01
  • DOI: http://dx.doi.org/10.18462/iir.TPTPR.2021.1917
  • Document available for consultation in the library of the IIR headquarters only.

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