Document IIF

Microtechnologie dans les équipements de pompe à chaleur.

Microtechnology in heat pumping systems.

Résumé

Micro heat pumps, with dimensions in the order of centimeters, may in the future be utilised for the heating and/or cooling in buildings, vehicles, clothing, and other products or applications. A number of issues are yet to be solved, including the construction of a microscale compressor, and determination of micro heat exchanger heat transfer capacities. Test samples of micro heat exchangers and a corresponding test apparatus have been built. Some two-phase experiments have been conducted. Preliminary results for a micro condenser with 0.5 mm wide trapezoidal channels of 25 mm length showed that a heat flux of 135 kW/m2, based on the refrigerant-side area, was attainable. The corresponding overall heat transfer coefficient was 10 kW/(m2.K), with a refrigerant-side pressure drop of 180 kPa/m.

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Détails

  • Titre original : Microtechnology in heat pumping systems.
  • Identifiant de la fiche : 2000-1564
  • Langues : Anglais
  • Source : 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
  • Date d'édition : 19/09/1999

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