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2015•Institut International du FroidOpen access

Misciblity characteristics of several low GWP refrigerants and typical lubricating oils.

Zaixing Yang, WU XUE-WEN, Tuo Tian

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Abstract

This paper describes the miscibility characteristics of the refrigerants HFCs (R227ea, R134a, R32, R161, R152a, R245fa), HCFCs (R22, R142b), CmHnOx (RE170), and their blends, with several types of lubricating oils, including mineral oils (MO) and polymer polyol ester oils (POE). A new experimental system was designed and built based on the ground of the related standards. Firstly, the typical statuses and micro-phenomenon of refrigerants and lubricants solutions were presented graphically; Secondly, the miscibility of MO and HCFCs (both pure and mixture refrigerants) was tested, compared and analyzed; In addition, after testing the miscibility of several HFCs with MO or POE oils, an exceptional case of successfully using the mineral oils for the HFC refrigerant was discussed.

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What this paper is about

This paper describes the miscibility characteristics of the refrigerants HFCs (R227ea, R134a, R32, R161, R152a, R245fa), HCFCs (R22, R142b), CmHnOx (RE170), and their blends, with several types of lubricating oils, including mineral oils (MO) and polymer polyol ester oils (POE). A new experimental system was designed and built based on the ground of the related standards. Firstly, the typical statuses and micro-phenomenon of refrigerants and lubricants solutions were presented graphically; Secondly, the miscibility of MO and HCFCs (both pure and mixture refrigerants) was tested, compared and analyzed; In addition, after testing the miscibility of several HFCs with MO or POE oils, an exceptional case of successfully using the mineral oils for the HFC refrigerant was discussed.

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Available abstract

This paper describes the miscibility characteristics of the refrigerants HFCs (R227ea, R134a, R32, R161, R152a, R245fa), HCFCs (R22, R142b), CmHnOx (RE170), and their blends, with several types of lubricating oils, including mineral oils (MO) and polymer polyol ester oils (POE). A new experimental system was designed and built based on the ground of the related standards. Firstly, the typical statuses and micro-phenomenon of refrigerants and lubricants solutions were presented graphically; Secondly, the miscibility of MO and HCFCs (both pure and mixture refrigerants) was tested, compared and analyzed; In addition, after testing the miscibility of several HFCs with MO or POE oils, an exceptional case of successfully using the mineral oils for the HFC refrigerant was discussed.

Key concepts: Refrigerant, Miscibility, Mineral oil, Materials science, Thermodynamics, Chemistry, Polymer, Organic chemistry

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Misciblity characteristics of several low GWP refrigerants and typical lubricating oils. — Research Paper | ScholarLens