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Brève revue de la carte technologique des pompes à chaleur au R744.

Mini review on a technological map of R744 heat pumps.


The recent global challenges in current socioeconomic conditions have raised efforts for alternative ways of searching for gas- and oil-fuelled boilers that supply hot water to buildings for heating and/or domestic use. Heat pumps, which are in the heating capacity range of 20 kW-200 kW, are strong candidates for replacing fossil-fuelled boilers. Among other heat pump solutions, carbon dioxide-based solutions are more popular thanks to their environment-friendly and energy-efficient operating conditions; thus, they have been under technology radar over the last years, especially for residential and industrial purposes. This paper presents a mini-review of the carbon dioxide heat pump technologies from the component- to system-level, as appears in literature and industry, by generating a technological map of the solution throughout time. The review starts with an overview; then focuses on the R744 heat pump components; which are followed by discussions related to the system-level studies.

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Pages : 8


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  • Titre original : Mini review on a technological map of R744 heat pumps.
  • Identifiant de la fiche : 30030988
  • Langues : Anglais
  • Source : 10th IIR Conference on Ammonia and CO2 Refrigeration Technologies.
  • Date d'édition : 27/04/2023
  • DOI :


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