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HFO-1234ze and its numerous assets.

Le HFO-1234ze aux multiples atouts.

Author(s) : DOLL W., RAHHAL C.

Type of article: Article

Summary

EU countries have recently agreed on a new 2030 Framework for climate and energy with an ambitious target for 2030 of a 40% cut in greenhouse gas emissions compared to 1990 levels. The HFO R-1234ze choice as the "4th refrigerant generation" seem to be adopted by several manufacturers for its various advantages, that include an extremely low GWP (Global Warming Potential J < 1 below CO2 GWP, an atmospheric lifetime of only 18 days compared with 14 years for HFC R-134a, thus answering perfectly to the goals set by the EU. The HFO R-1234ze is also non-flammable below 30·C (classified in A2L safety class) and allows an efficiency gain of 3% to 5% for chillers using screw compressors and R-1234ze compared vs R-134a. Furthermore, the manufacturer Carrier is now proposing high temperature water to water heat-pumps that can produce hot water up to 85°C thanks to the combination of the R-13234ze refrigerant technical characteristics as well as a specific heat-pump design.

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Pages: 20-24

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Details

  • Original title: Le HFO-1234ze aux multiples atouts.
  • Record ID : 30019816
  • Languages: French
  • Subject: General information
  • Source: Revue générale du Froid & du Conditionnement d'air - n. 1157
  • Publication date: 2016/05

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