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Dynamic optimal control of a CO2 heat pump coupled with hot and cold thermal storages.

Commande optimale dynamique d’une pompe à chaleur au CO2 couplée à des dispositifs de stockage thermique chaud et froid.

Numéro : pap. 2106

Auteurs : LIU F., DENG J., GROLL E. A.

Résumé

This study presents a model-based dynamic optimization strategy for a dual-mode CO2 ejector expansion heat pump coupled with hot and cold thermal storages, which was proposed as a high-efficiency smart grid enabling option in heating and cooling services for buildings or industry. The dynamic model of the coupled system was developed by Modelica. The outlet water temperatures of hot and cold tanks are used as indicators in the dynamic optimal strategy for charging of hot and cold storages using a dual-mode heat pump. To optimize the overall performances during energy process, the transient performances are optimized by genetic algorithm based on Modelica-based modeling of dynamic system. Single-objective and multi-objective dynamic optimal control strategies were developed and implemented into the simulation system. Modeling results show that these two developed model-based dynamic optimal control strategies are able to search the optimal transient performances and optimize the overall performances of such coupled systems during energy charging. Compared with the strategy with constant control parameters, these two dynamic optimal control strategies can be helpful in the coordinative optimization of multiple control parameters, and multi-objective dynamic optimal control strategy is superior to the single-objective one.

Documents disponibles

Format PDF

Pages : 9

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Dynamic optimal control of a CO2 heat pump coupled with hot and cold thermal storages.
  • Identifiant de la fiche : 30024400
  • Langues : Anglais
  • Source : 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 09/07/2018

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