Froid par diffusion-absorption à faible source de température Partie II: Expériences et évaluation de modèle

Translated title of the contribution: Low-source-temperature diffusion absorption refrigeration. Part II: Experiments and model assessment

Alexander S. Rattner, Srinivas Garimella

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

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.

Translated title of the contributionLow-source-temperature diffusion absorption refrigeration. Part II: Experiments and model assessment
Original languageFrench
Pages (from-to)312-329
Number of pages18
JournalInternational Journal of Refrigeration
Volume65
DOIs
StatePublished - May 1 2016

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering

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