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Influence du fluide actif ternaire NH3-H2O-LiBr sur le COP et la circulation de la solution dans un système frigorifique à absorption d'ammoniac. 

The influence of NH3-H2O-LiBr ternary working fluid on the COP and solution circulation in ammonia absorption refrigeration system.

Numéro : 0699

Auteurs : XU M., LI S., JIN Z., DU K.

Résumé

Using NH3-H2O-LiBr ternary working fluid is an effective way to promote the performance of ammonia absorption refrigeration system (AARS). First, the experiment results indicated that 15% was the optimum LiBr concentration. The COP and the exergy efficiency of the NH3-H2O-LiBr ternary system were promoted up to 7.6% and 8.96%. Second, the negative effect of LiBr on circulation was small and the COP rose when the LiBr concentration was less than 15%. But the circulation ratio increased by 121% when the LiBr concentration reached 20%, which resulted in COP sharply dropping. Third, the absorber cooling load decreased by 18.7% at most in ternary system. The application of NH3-H2O-LiBr ternary solution is beneficial for the miniaturization of absorber and AARS. Finally, the viscosity of the NH3-H2O-LiBr ternary solution was measured. The results indicated that temperature and NH3 had more influence on solution viscosity than LiBr.

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Format PDF

Pages : 11 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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

Détails

  • Titre original : The influence of NH3-H2O-LiBr ternary working fluid on the COP and solution circulation in ammonia absorption refrigeration system.
  • Identifiant de la fiche : 30031645
  • Langues : Anglais
  • Sujet : Technologie
  • Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Date d'édition : 21/08/2023
  • DOI : http://dx.doi.org/10.18462/iir.icr.2023.0699

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