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Is chemical HFO refrigerants a solution for heat pumps?

Number: 0010

Author(s) : HOFFMANN K., GERRITSEN J.

Summary

Since 1920 many different synthetical refrigerant have been introduced onto the market. The latest so-called 4th generation synthetical refrigerant is the unsaturated HFC or HFO (Hydrofluoroolefins). They are introduced to combat an environmental issue, i.a. the global warming potential of HFC refrigerant, however, they are creating a new challenge. Recent research has shown that there is a build-up of fluoride substances as Trifluoroacetic acid (TFA) in drinking water globally. For some refrigerants the HFO 100% of the molecules break down into trifluoroacetic acid, which can lead to large health cost in the future, due to this environmental pollution. Whereas the refrigeration industry working with natural refrigerant are focusing on low charge and no leakages solutions, due to the flammability and toxicity of some of the natural refrigerant, there is very little effort by the industry working with synthetical refrigerant to create similar safe and low charge solutions. Although many of the same conclusion can be drawn from industrial refrigeration and heat pump systems, this paper focuses on the evaluation of HFO in industrial heat pumps, where it concludes that there is an environmental and cost benefit of using natural refrigerants.

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Details

  • Original title: Is chemical HFO refrigerants a solution for heat pumps?
  • Record ID : 30028947
  • Languages: English
  • Subject: HFCs alternatives
  • Source: 9th IIR Conference on Ammonia and CO2 Refrigeration Technologies. Proceedings: Ohrid, North Macedonia, 16-17 September, 2021
  • Publication date: 2021/09/16
  • DOI: http://dx.doi.org/10.18462/iir.nh3-co2.2021.0010

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