TY - JOUR
T1 - Froid par diffusion-absorption à faible source de température Partie II: Expériences et évaluation de modèle
AU - Rattner, Alexander S.
AU - Garimella, Srinivas
N1 - Funding Information:
The authors wish to acknowledge generous financial support from the U.S. Department of Energy through the Krell Institute (contract DE-FG02-97ER25308 ). The authors also wish to acknowledge Hannah Oermann for her assistance in constructing the refrigeration facility and performing experiments.
Publisher Copyright:
© 2016 Elsevier Ltd and IIR
PY - 2016/5/1
Y1 - 2016/5/1
N2 - 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.
AB - 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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U2 - 10.1016/j.ijrefrig.2015.11.016
DO - 10.1016/j.ijrefrig.2015.11.016
M3 - Article
AN - SCOPUS:84992076966
VL - 65
SP - 312
EP - 329
JO - International Journal of Refrigeration
JF - International Journal of Refrigeration
SN - 0140-7007
ER -