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Document IIF

Évaluation de performance d’un échangeur de chaleur à plaques au H2O/LiBr.

Performance evaluation of plate heat exchanger with H2O/LiBr refrigerant.

Numéro : pap. 1249

Auteurs : SONG J. Y., CHANG Y. S., KANG Y. T.

Résumé

In this study, the heat transfer characteristics of Water/Lithium bromide(LiBr) solution in the plate heat exchanger (PHE) for the absorption chiller application is evaluated. The plate heat exchanger is arranged in single-pass, counter flow and chevron angle of the corrugated plate is 78.5°. The H2O/LiBr solution as the working fluid was used with concentration ranging from 52.40% to 64.92%, Reynolds number ranging between 27.29 and 255.1 and Prandtl number ranging between 4.59 and 19.26. The experiment was conducted within ±10% energy balance error range. As a result, the heat transfer coefficient was evaluated ranging from 0.68 kW/m2-K to 2.92 kW/m2-K. Based on the experimental data, the empirical heat transfer correlation of the H2O/LiBr solution is developed and applicable within ±20% error range. By comparing with the correlations of the others, the validity of the heat transfer correlation of this study is validated.

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Pages : 7

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Détails

  • Titre original : Performance evaluation of plate heat exchanger with H2O/LiBr refrigerant.
  • Identifiant de la fiche : 30023644
  • Langues : Anglais
  • Source : 13th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2018). Proceedings. Valencia, Spain, June 18-20th 2018.
  • Date d'édition : 18/06/2018
  • DOI : http://dx.doi.org/10.18462/iir.gl.2018.1249

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