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Refrigerants with low environmental impact for refrigeration systems.
Number: pap. n. 1103
Author(s) : PETERSEN M., POTTKER G., SETHI A., et al.
Summary
Refrigerants with high global warming potential (GWP), such as R404A, have been used in a wide range of refrigeration applications, but were subject to regulations and mandatory bans in several countries in the last few years. This paper presents several options to significantly reduce the environmental impact in both existing and new commercial refrigeration applications, while improving the energy efficiency.
As the leading option for retrofitting R404A in existing systems R448A is presented in a supermarket refrigeration system retrofit case study. This field evaluation showed energy savings with R448A of 9-20% depending on the ambient temperature while maintaining the operational requirements. Compressor discharge temperatures remained within manufacturer specifications and no mitigation measures were needed.
For new refrigeration systems a concept design is introduced using hermetic self-contained units to provide refrigeration at low temperature levels with R1234yf and medium temperature levels with the nonflammable blend R515A. The environmental impact of this new concept is compared with other system architectures. The R515A /R1234yf system shows up to 27% lower total emissions and up to 30% higher energy efficiency than a transcritical R744 system.
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Details
- Original title: Refrigerants with low environmental impact for refrigeration systems.
- Record ID : 30024808
- Languages: English
- Source: 1st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
- Publication date: 2018/09
- DOI: http://dx.doi.org/10.18462/iir.hfo.2018.1103
Links
See other articles from the proceedings (126)
See the conference proceedings
Indexing
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Themes:
HFCs;
Supermarkets, display cabinets;
Blends - Keywords: R1234yf; Low GWP; R744; R448a; Thermodynamic property; Supermarket; Mixture; HFO
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Refrigerants with low environmental impact for ...
- Author(s) : PETERSEN M., POTTKER G., SETHI A., et al.
- Date : 2018/09
- Languages : English
- Source: 1st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
- Formats : PDF
View record
-
Application of HFO blends in new and existing c...
- Author(s) : ALLGOOD C., PANSULLA A., ROBERTS N.
- Date : 2018/09
- Languages : English
- Source: 1st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
- Formats : PDF
View record
-
Application of HFO blends in new and existing c...
- Author(s) : ALLGOOD C.
- Date : 2018/09
- Languages : English
- Source: 1st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
- Formats : PDF
View record
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Examining low global warming potential hydroflu...
- Author(s) : SPLETZER S., MEDINA J., HUGHES J.
- Date : 2019/08/24
- Languages : English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
View record
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Total equivalent warming impact analysis of HFO...
- Author(s) : ALLGOOD C., PANSULLA A.
- Date : 2018/09
- Languages : English
- Source: 1st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
- Formats : PDF
View record