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Performance d’un refroidisseur à adsorption d’éthanol à ailettes avec un tissu de charbon actif.

Performance of a finned activated carbon cloth-ethanol adsorption chiller.

Auteurs : TIERNEY M., KETTERINGHAM L., MOHD NOR A.

Type d'article : Article

Résumé

Measurements of cooling power and heat demand are presented for an adsorption heat pump (AHP) that integrated a finned adsorbent heat exchanger and a solar collector. For this study the adsorbent heat exchanger was heated/cooled with fluid at near constant temperature. Results from a bench scale, large temperature jump (LTJ) test were scaled to predict the outcome of a larger experiment (adjusting for heat losses and additional heat capacities). The AHP’s measured coefficients of performance were COP ? [0.119, 0.236] versus COP ? [0.233, 0.337] expected. The factor of discrepancy in specific cooling power (predicted cooling power divided by measured cooling power) is 1.1–2.0 versus a range of 2–6 suggested elsewhere. Although the scale-up procedure accounted for additional heat capacities, unwanted air ingress (even for mole fractions < 0.1%) might have substantially reduced adsorption/evaporation rates.

Détails

  • Titre original : Performance of a finned activated carbon cloth-ethanol adsorption chiller.
  • Identifiant de la fiche : 30020550
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 110
  • Date d'édition : 05/01/2017
  • DOI : http://dx.doi.org/10.1016/j.applthermaleng.2016.08.102

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