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Material compatibility of motor materials with low GWP refrigerants and lubricant.

Number: 1249

Author(s) : ROBACZEWSKI C., LEEHEY M. H., DEDEKER Z.

Summary

Phase insulation, tie cord, and varnish used in hermetic motors are critical materials used in the construction of heating ventilation, air conditioning and refrigeration (HVAC&R) equipment. Understanding of the compatibility of these materials with new low global warming potential (GWP) refrigerants and lubricants is necessary to ensure reliable equipment operation over 10-20 years. AHRTI (Air-Conditioning Research Technology Institute), with funding from the US Department of Energy Building Technology Office, and NYSERDA (New York State Energy Research & Development Authority) sponsored the second phase of the AHRTI Project 9016 to continue the study of Low GWP (global warming potential) refrigerants. Phase II of this project expanded upon the chemical stability testing with more system materials of construction and included material compatibility of common non-metallic materials used in refrigerant containing systems.
This paper will focus on the material compatibility results of motor materials, specifically phase insulation, tie cord, and varnish, with R-1233zd(E) and R-1224yd(Z) with and without mineral oil, R-1336mzz(E), R-514A, R-515B, R-516A, and R-454B with and without PAG (polyalkylene glycol), POE (polyol ester), and PVE (polyvinyl ether) lubricants.

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Pages: 10

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  • Original title: Material compatibility of motor materials with low GWP refrigerants and lubricant.
  • Record ID : 30033592
  • Languages: English
  • Subject: Environment
  • Source: 2024 Purdue Conferences. 27th International Compressor Engineering Conference at Purdue.
  • Publication date: 2024/07/18

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