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Système frigorifique à diffusion-absorption à faible source de température. 2. Modélisation et analyse de cycle.

Low-source-temperature diffusion absorption refrigeration. 2. Experiments and model assessment.

Auteurs : RATTNER A. S., GARIMELLA S.

Type d'article : Article, Article de la RIF

Résumé

The diffusion absorption refrigeration cycle can enable passive fully thermally activated refrigeration for off-grid applications. In the accompanying paper, a new system configuration was proposed that employs alternate working fluids (NH3–NaSCN–He), a coupling-fluid heated bubble-pump generator, and an enhanced absorber. Detailed component and system level models were formulated for this design. In Part II of this work, the subject of this paper, these results are applied to implement a complete low-source-temperature (110–130?°C) passively cooled diffusion absorption refrigeration (DAR) system. Cooling was achieved at temperature ranges suitable for refrigeration (Tevap?=?6 ? 3?°C, COP ~ 0.06) and air-conditioning (12 ? 8?°C, COP ~ 0.14). Device performance was also assessed at elevated ambient temperatures, reduced ambient air velocities, and varying system pressures. Results from this investigation agreed well with the predictions of the models developed in Part I.

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Format PDF

Pages : 312-329

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Détails

  • Titre original : Low-source-temperature diffusion absorption refrigeration. 2. Experiments and model assessment.
  • Identifiant de la fiche : 30017862
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 65
  • Date d'édition : 05/2016

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