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R22 phase-out in existing installations. 6. Annexes: theoretical comparison of refrigerants, environmental impacts, CO2 systems.

Remplacement du R22 dans les installations existantes. 6. Annexes : comparaison théorique des fluides, impacts environnementaux, machines fonctionnant au CO2.

Author(s) : BENSAFI A.

Type of article: Article, Review

Summary

Annex 2 is important as it recaps the calculation method for TEWI (Total Equivalent Warming Impact), necessary to assess the energy impact of various refrigerants on the climate. The calculation of direct effects is based on the GWPs of each new refrigerant, hypotheses on loads in each installation and their annual leakage rate. Indirect effects are calculated on the basis of the energy consumed by the system, deducted from the data provided in Parts 3 and 4. Annex 3 presents possible applications of CO2 as an alternative refrigerant, based on Swedish documents. It shows the possibilities offered by this rehabilitated fluid, as ammonia was rehabilitated by Prof. Lorentzen (cf. also Bulletin of the IIR, references 2010-0714, 0716, 0717, 1059 and 1060).

Details

  • Original title: Remplacement du R22 dans les installations existantes. 6. Annexes : comparaison théorique des fluides, impacts environnementaux, machines fonctionnant au CO2.
  • Record ID : 2011-0059
  • Languages: French
  • Subject: Environment, General information
  • Source: Revue générale du Froid & du Conditionnement d'air - vol. 100 - n. 1105
  • Publication date: 2010/07

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