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ASHRAE Guideline 38 methodology material compatibility testing of R-473A

Number: 2440

Author(s) : AL-RUBAAY R., SEETON C., LOW R., SAXENA I.

Summary

The development of non-flammable refrigerants with a lower global warming potential (GWP) for ultra-low temperature refrigeration is desired because existing refrigerants used in this application range have very high GWP. A new blend refrigerant R-473A has been developed by Koura, which offers high energy efficiency and low global warming potential (GWP), resulting in low overall environmental impact. It has been classified by ASHRAE as an A1 refrigerant. The material compatibility and reactivity of this refrigerant has been studied with lubricants that are commonly used in this application with R-23 refrigerants. In this paper, ASHRAE Guideline 38 methodology for (R-473A) materials compatibility test of select metals and rubbers been evaluated by using various commercially available POE and PAG lubricants. Results will be reported and compared with those obtained using R-23 as a reference refrigerant.

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Pages: 8 p.

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Details

  • Original title: ASHRAE Guideline 38 methodology material compatibility testing of R-473A
  • Record ID : 30030728
  • Languages: English
  • Subject: HFCs alternatives
  • Source: 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2022

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