Document IIF

Comparaison de la consommation énergétique et des coûts sur le cycle de vie de systèmes frigorifiques de taille industrielle.

Comparing energy consumption and life cycle costs of industrial size refrigeration systems.

Numéro : pap. n. 947

Auteurs : LUND T., SKOVRUP M. J., HOLST M.


In this paper we present a comparison of the energy consumption of common industrial size systems, including the appropriate variations in system design, ambient conditions and life cycle costs.
The systems selected for comparison is:
1.Transcritical R744, DX
2.Transcritical R744, pumped
3.Two-stage R717, pumped
4.R744/R717 cascade, pumped
5.Two-stage R507, pumped
All systems have been investigated in 4 different sizes, in both a ‘standard’ and an optimized execution. Optimizations include parallel compression, hybrid coolers, ejectors and economizers where applicable. Calculations are performed for various climate conditions, ranging from cold to hot climates. As the comparison results are depending on the inputs to the simulation software, the paper provides an overview of the impact of the choices made in the simulation software on the overall results. Finally, a total cost of ownership calculation, based on the supplier installation prices and the calculated power consumption, has been performed.

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  • Titre original : Comparing energy consumption and life cycle costs of industrial size refrigeration systems.
  • Identifiant de la fiche : 30026501
  • Langues : Anglais
  • Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Date d'édition : 24/08/2019
  • DOI :


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