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Examples of the development of natural refrigerant heat pumps: propane and CO2.

Exemples de développements de pompe à chaleur aux fluides naturels : cas du propane et du CO2.

Author(s) : COLASSON S., MARÉCHAL A., VACHER S., et al.

Type of article: Article

Summary

The recent European regulation on F-Gas governing the use of current refrigerants with global warming effects, has highlighted the need for research on new replacement fluids. For systems based on the mechanical compression cycle, some solutions have just begun to appear, involving so-called natural refrigerants such as propane and carbon dioxide. Propane has good transfer properties in comparison with current refrigerants. Then, increasing the compactness of refrigeration systems and heat pumps with propane becomes the main issue in development. With carbon dioxide, most of the research topics deal with the transcritical cycle where the discharge pressure achieves a higher value than the critical pressure (73.8 bar). In this part: these main elements are presented and revealed through experimental results from prototypes. Moreover, some heat exchanger characteristics and heat transfer performances are detailed.

Details

  • Original title: Exemples de développements de pompe à chaleur aux fluides naturels : cas du propane et du CO2.
  • Record ID : 2010-0932
  • Languages: French
  • Source: Revue générale du Froid & du Conditionnement d'air - vol. 100 - n. 1102
  • Publication date: 2010/04

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