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Chemical Stability of HFO and HCO Refrigerants.

Number: 2246

Author(s) : LEEHEY M. H., KUJAK S., COLLINS C.

Summary

The chemical stability of a refrigerant and lubricant with the materials used in HVAC&R (heating, ventilation air-conditioning and refrigeration) equipment is critical to ensure reliable equipment operation over the lifetime of the equipment. 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 summarize the highly accelerated life tests (HALT) results for, conducted according to ASHRAE Standard 97 sealed glass tube methodology, R-1233zd(E) with and without mineral oil, R-514A, R-1234ze(E), and R-1234yf with and without POE lubricant, and R-454B, and R-32 with POE lubricant only; evaluations were conducted with various braze alloys, fluxes, metals oxides, surface coatings, tube expansion lubricants, motor varnish and various corrosion resistant materials. The remaining results are summarized and further discussed in the AHRTI 9016 Phase II final report.

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Pages: 10 p.

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Details

  • Original title: Chemical Stability of HFO and HCO Refrigerants.
  • Record ID : 30033096
  • Languages: English
  • Subject: Regulation
  • Source: 2024 Purdue Conferences. 20th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2024/07/17

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