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Développement d'un refroidisseur à absorption compact en utilisant une membrane à feuille plate hydrophobe.

Development of a compact absorption chiller using hydrophobic flat sheet membrane.

Numéro : pap. 2577

Auteurs : INOUE S., DANG C., HIHARA E.

Résumé

Automotive absorption refrigeration systems have enormous potential to conserve energy using exhaust gas from the car engine. The absorption system, however, has not yet been used for automobiles owing to its large volume, weight, and the weaknesses of unexpected vibrations and slope while driving. The LiBr solution may be scattered by the vibration on the cooling tube in the absorber, leading to malfunction of the absorber. Further, because of the sloping road, the free surface of the solution in the generator and absorber may cause mixing of the refrigerant and the LiBr solution. To solve these problems, attempts were made to use a hydrophobic flat sheet membrane. The membrane is a porous medium that has microscale pores and is used for filtration to separate specific substances. By the hydrophobicity of the membrane, the LiBr solution cannot penetrate the pores of the membrane. Only vapor can penetrate the pores. This means the membrane can separate the LiBr solution and vapor refrigerant. By using the membrane for all the components of the absorption refrigeration system, the free surface of the working fluid is eliminated, and the mixing of fluids does not occur because of the sloping road. To reduce the volume of components, a combined generator–condenser unit and absorber–evaporator unit were designed, and these performance were measured.

Documents disponibles

Format PDF

Pages : 8

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 : Development of a compact absorption chiller using hydrophobic flat sheet membrane.
  • Identifiant de la fiche : 30024654
  • 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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