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Comparaison et analyse d’un refroidisseur à absorption de LiBr/H2O dans des conditions de fonctionnement variables, basées sur différentes modélisations.

Comparison and analysis of LiBr/H2O absorption chiller in variable working condition based on different modeling.

Numéro : pap. L61

Auteurs : LI Z., CHEN E., LV S.

Résumé

The paper mainly deals with the quantitative comparison of different modeling and analysis of LiBr/H2O absorption chiller in the variable working condition. The investigation is based on the case that the condenser and absorber temperatures are controllable and treated as the given condition. Four modeling based on the different considerations of heat transfer coefficient of generator and evaporator was considered and compared. The dependent change of generator temperature and evaporator temperature was gotten. The generator temperature and evaporator temperature change oppositely with the variation of temperature and flowrate of hot water and chilled water. The trend of generator temperature and evaporator temperature is coincident with the change of condenser and absorber temperature. In most cases, the evaporator temperature is more sensitive to the working condition. The flowrate of hot water and chilled water influences the thermodynamic characteristic of system weakly as their values are twice as much as the design value. Besides, the modeling based on the constant heat transfer coefficient is acceptable for the simulation in the variable working condition. The paper can provide the foundation in the optimal design and control of LiBr/H2O absorption chiller.

Documents disponibles

Format PDF

Pages : 11

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 : Comparison and analysis of LiBr/H2O absorption chiller in variable working condition based on different modeling.
  • Identifiant de la fiche : 30022073
  • Langues : Anglais
  • Source : 8th international conference on compressors and refrigeration, 2017.
  • Date d'édition : 20/07/2017

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