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Solubility and viscosity of R-134a refrigerant/lubricant mixtures

Raymond H. P. Thomas, H. T. Pham, Weite Wu

Open publisher page 7 citations

Abstract

In response to concerns about the depletion of the stratospheric ozone layer, the HVAC and R industry is in the process of introducing environmentally safer refrigerants. This process is well underway. Because of the different properties of some new refrigerants (like R-134a), new lubricants are needed. There also exists a need for fundamental data on these new refrigerant/lubricant pairs. R-134a used in this work was 99.97 percent pure. The proprietary lubricant had a viscosity of 70 cs at 40{degrees} C.

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What this paper is about

In response to concerns about the depletion of the stratospheric ozone layer, the HVAC and R industry is in the process of introducing environmentally safer refrigerants. This process is well underway. Because of the different properties of some new refrigerants (like R-134a), new lubricants are needed. There also exists a need for fundamental data on these new refrigerant/lubricant pairs. R-134a used in this work was 99.97 percent pure. The proprietary lubricant had a viscosity of 70 cs at 40{degrees} C.

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Available abstract

In response to concerns about the depletion of the stratospheric ozone layer, the HVAC and R industry is in the process of introducing environmentally safer refrigerants. This process is well underway. Because of the different properties of some new refrigerants (like R-134a), new lubricants are needed. There also exists a need for fundamental data on these new refrigerant/lubricant pairs. R-134a used in this work was 99.97 percent pure. The proprietary lubricant had a viscosity of 70 cs at 40{degrees} C.

Key concepts: Refrigerant, Lubricant, Viscosity, Work (physics), Solubility, Process engineering, Ozone layer, Thermodynamics

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