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Analyse thermodynamique du choix des frigorigènes pour des cycles de pompes à chaleur à haute température.

Thermodynamic analysis of refrigerant selection for high temperature heat pump cycles.

Numéro : No 343

Auteurs : KAIDA T.

Résumé

Industrial heat pump is recognized as one of decarbonization technologies in industry by a couple of its high efficiency and electrification with low carbon electricity. For expanding applications of heat pumps into various industrial heating processes, it is necessary to increase the supply temperature of heat pumps. Recently, some new refrigerants have been developed, which allows to increase the choice of refrigerants expected to be applied to higher temperature heat pumps. The purpose of this study is to illustrate working domain maps which can determine the promising refrigerant and the upper limit of heat pumping temperature lift for each supply temperature. First, with thermodynamic analysis for simple heat pump cycle, refrigerant selection in the wide range of the heat pump supply temperature from 60°C to 200°C is analyzed comprehensively for 17 pure refrigerants currently available on the market. Then, the effect of a high efficiency improvement by two-stage cycle with economizer are examined on the refrigerant selection.

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Pages : 10 p.

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Détails

  • Titre original : Thermodynamic analysis of refrigerant selection for high temperature heat pump cycles.
  • Identifiant de la fiche : 30030112
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : 13th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
  • Date d'édition : 31/08/2021

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