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Évaluation des performances du couple MIL-101-ethanol adapté pour le froid à adsorption.

Performance evaluation of shaped MIL-101-ethanol working pair for adsorption refrigeration.

Auteurs : MA L., RUI Z., WU Q., et al.

Type d'article : Article

Résumé

Shaped MIL-101 and ethanol were selected as a working pair for adsorption refrigeration in this work. The adsorption isotherm of ethanol on shaped MIL-101 (MIL-101-3) was obtained by high vacuum gravimetric method. The desorption performance of ethanol on MIL-101-3was measured by Thermo Gravimetric Analyzer. The adsorption refrigeration performance and cyclic adsorption stability of MIL-101-3– ethanol were investigated on the simulation device of adsorption refrigeration. The results show: (1) the equilibrium adsorption capacity of ethanol on MIL-101 is 0.74 kg/kg at 25°C. (2) The desorption peak temperature of ethanol on MIL-101-3 is 54.0°C, and temperature of complete desorption is about 100°C. (3) At the desorption temperature of 80°C, the refrigeration capacity of MIL-101-3–ethanol working pair reaches 283 kJ/kg, which is 2.2 times as much as that of activated carbon–ethanol. (4) MIL-101-3 shows no significant reduction of ethanol uptake after 60 cycles, and the Brunauer-Emmett-Teller (BET) surface area only decreases by 3.3%.

Détails

  • Titre original : Performance evaluation of shaped MIL-101-ethanol working pair for adsorption refrigeration.
  • Identifiant de la fiche : 30016823
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 95
  • Date d'édition : 25/02/2016
  • DOI : http://dx.doi.org/10.1016/j.applthermaleng.2015.09.023

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