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Critères de conception dans les climats froids.

Design considerations in cold climates.

Auteurs : SCHUETTER S., HACKEL S.

Type d'article : Article

Résumé

Air source variable refrigerant flow (VRF) systems are grabbing a greater share of the market in moderate climates. However, they are not widely implemented in cold climates because they typically lose capacity and efficiency at low ambient temperatures. To overcome this barrier, VRF systems may be supplemented by an additional heat source. Alternately, they can be upgraded to water or ground source systems that are not subject to ambient temperatures. While questions remain regarding how to select, design, and operate VRF systems in colder climates to achieve good energy performance and reduce capacity degradation, we have analyzed several strategies and share our conclusions and observations in this article.

Détails

  • Titre original : Design considerations in cold climates.
  • Identifiant de la fiche : 30020924
  • Langues : Anglais
  • Sujet : Environnement, Généralités
  • Source : ASHRAE Journal - vol. 59 - n. 1
  • Date d'édition : 01/2017

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