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General framework for revising class A3 refrigerant charge limits – a discussion.

Author(s) : COLBOURNE D., SUEN K. O., LI T. X., VONSILD A.

Type of article: IJR article

Summary

Currently, industry and governmental entities are increasingly concerned with the restrictive controls on flammable refrigerant – particularly class A3 – charge limits, within safety standards. Since A3 refrigerants, such as R290 and R1270, are in many respects considered as desirable refrigerants to help resolve the global warming problem associated with other options (such as HFCs), safety standards should be formulated so that A3 refrigerant could be applied more widely than permitted today. An analysis of current standards reveals the extent to which A3 refrigerants currently can be applied. Further analysis of these and standards from other sectors help identify concepts and protective measures that can be applied to extend equipment across a range of larger cooling and heating capacities. The objective is to discuss how charge limits could be revised to enable a wider application of A3 refrigerants, with respect to safety regulations and associated implications, concepts and approaches available in published literature.

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Pages: 209-217

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Details

  • Original title: General framework for revising class A3 refrigerant charge limits – a discussion.
  • Record ID : 30027522
  • Languages: English
  • Subject: Regulation, HFCs alternatives
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 117
  • Publication date: 2020/09
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2020.04.024

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