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Charging and recovery techniques for low GWP refrigerant blends.

Number: 2456

Author(s) : MACNEILL M. L., SEETON C. J., LOW R. E.

Summary

The exploration of low Global Warming Potential (GWP) refrigerants to replace popular high GWP refrigerants is crucial in tackling climate change. Several low GWP and non-flammable refrigerant blends have been developed; R-473A and LFR3. R-473A offers an alternative solution to R-23 and R-508 in specialist cold-chain applications such as storing and preserving consumable goods, biomedical transport, storage and for environmental testing chambers. LFR3 is an improved version of R-744 and holds potential for transitioning residential heat pumps. Additionally, LFR3 is an attractive candidate for use in the growing electric vehicle heat pump market. Since both LFR3 and R-473A have relatively low critical temperatures (~30 °C) and are blends that may fractionate if not handled properly, we have developed new procedures for the method of charging and recovering 98% product to and from a refrigeration system operating with R-473A and LFR3. Newly developed field compositional analysis techniques have been included as part of the study to ensure quality control measures and end user needs are met.

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Pages: 9 p.

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Details

  • Original title: Charging and recovery techniques for low GWP refrigerant blends.
  • Record ID : 30030735
  • Languages: English
  • Subject: Technology, HFCs alternatives
  • Source: 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2022

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