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Document IIF

Évaluation de la performance de plusieurs roues déshydratantes à matrice de papier fibre recouvertes d'un nano-adsorbant pour une déshumidification efficace sur le plan énergétique.

Performance evaluation of various fiber paper matrix desiccant wheels coated with nano-adsorbent for energy efficient dehumidification.

Auteurs : LAKSHMI KANTHAN BARATHI A., HUSSAIN S. I., KALAISELVAM S.

Type d'article : Article de la RIF

Résumé

This paper investigates the dehumidification performance of desiccant wheel (DW) with different fiber paper (FP) substrates such as wood pulp, glass fiber, ceramic fiber, Nomex fiber, and brown wood pulp FP, coated with nano SiO2 as adsorbent for energy efficient air dehumidification. The FP substrates are coated with SiO2 nano-adsorbent by impregnation-dip coating method to the thickness of 5 mils. The adsorption capacity for all the FP substrates was evaluated at temperature of 28 °C and 70% relative humidity. It was found that the adsorption capacity increases with increasing the desiccant coatings. The adsorption capacity of GFP was high with a value of 57.6 g·m-2 and thermal conductivity was improved from 0.038 W·m-1·K-1 to 0.094 W·m-1·K-1 with desorption temperature of 45 °C after coating with SiO2 nano-adsorbent. Among varying regeneration temperature from 50‒90 °C, the desiccant wheel GFP-SiO2-DW has high dehumidification capacity and dehumidification coefficient of performance (DCOP) of 2.1 g·kg-1 and 2.2 respectively at 50 °C. The results confirm that less energy is necessary for the regeneration heater which can be supplied from a low-grade energy source thus reducing the energy consumption for regeneration of the desiccant wheel.

Documents disponibles

Format PDF

Pages : 416-429

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 : Performance evaluation of various fiber paper matrix desiccant wheels coated with nano-adsorbent for energy efficient dehumidification.
  • Identifiant de la fiche : 30030921
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 146
  • Date d'édition : 02/2023
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2022.12.002

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