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Test of condensing units’ performance and operating limits using different refrigerants.
Number: 292522
Author(s) : HADDAD E., COHEN M, SAAB S., ZOUGHAIB A., SONZA P.
Summary
The European regulation (F-Gaz) has set a series of limitation to reach the objective of reducing the Global Warming Potential (GWP) emissions. Among these limits, the ban of Hydrofluorocarbons (HFC) refrigerants having a GWP higher than 2500 starting 2020. To replace these refrigerants, a new family of refrigerants was invented: hydro-fluoro-olefins (HFOs). In this paper, we present the outcome of a testing campaign aiming to compare the performance, operating range of a condensing unit of a rated capacity of 8kW operated with HFC 404A and two low GWP HFO/HFC blends. The condensing unit cools a glycol loop. The comparison is made using two ambient temperatures while operating at the same glycol inlet temperature. HFO/HFC blends were found more efficient and capable of operating at a wide temperature range.
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Details
- Original title: Test of condensing units’ performance and operating limits using different refrigerants.
- Record ID : 30027574
- Languages: English
- Subject: Technology, HFCs alternatives
- Source: 6th IIR International Conference on Sustainability and the Cold Chain. Proceedings: Nantes, France, August 26-28 2020
- Publication date: 2020/08/26
- DOI: http://dx.doi.org/10.18462/iir.iccc.2020.292522
- Document available for consultation in the library of the IIR headquarters only.
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Indexing
-
Themes:
HFCs;
Blends;
HFO et HCFO;
Supermarkets, display cabinets;
Indirect refrigeration systems - Keywords: HFC; Supermarket; Performance; HFO; Mixture; Low GWP; R404A; R454C; R454A; COP; Glycol; Cooling capacity; Condenser; Expérimentation; Indirect system
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