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Développement de frigorigènes à faible GWP.

Sviluppo di refrigeranti con basso GWP./ Low GWP refrigerant development.

Auteurs : ACHAICHIA N., MATTEO G.

Résumé

Due to increased pressure to address the issue of global warming, the European Commission through the MAC directive has effectively banned the use of HFC-134a refrigerant in air conditioning in new vehicle types in EU countries starting January 1, 2011. The F-gas regulation is expected to be reviewed and its potential extension to other applications cannot be ruled out. Honeywell embarked on a research program to identify fourth generation fluorocarbon chemistry that would incorporate the desired environmental properties, that is, low GWP with respect to climate change, while maintaining desirable properties and high performance characteristics. Meeting the requirements outlined in the EU MAC directive and F-gas regulation requires GWP less than 150. To meet the requirements Honeywell developed its low-GWP platform, based on hydrofluoro olefin (HFO) technology. Honeywell identified HFO-1234yf as a new low global warming refrigerant (GWP= 4) which has the potential to be a global sustainable solution for automotive air conditioning. HFO-1234yf is a pure compound which is highly energy efficient, exhibits low toxicity in testing to date, and can potentially be used in systems currently designed for R134a with minimal modifications. Another low GWP molecule HFO-1234ze (E) has been identified and is currently commercialized by Honeywell as a blowing-agent for one-component foam and as an aerosol propellant. It has also potential for refrigeration applications. It is a highly energy efficient HFO molecule, with a GWP of only 6. An update on the development of these molecules is presented, and potential applications identified, and compared to various HFC currently in use.

Documents disponibles

Format PDF

Pages : 12 p. (E), 14 p. (I)

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Format PDF

Pages : 12 p. (E), 14 p. (I)

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Sviluppo di refrigeranti con basso GWP./ Low GWP refrigerant development.
  • Identifiant de la fiche : 2010-0035
  • Langues : Anglais
  • Source : Latest technologies in refrigeration and air conditioning: energy issues and climate change, new refrigerants, new European regulations, new plants, the cold chain. XIII European Conference: June 12-13, 2009, Milan.
  • Date d'édition : 12/06/2009

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