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Performance of a low- temperature NH3 H2O absorption-refrigeration system

Author

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  • Rogdakis, E.D.
  • Antonopoulos, K.A.

Abstract

Conventional absorption-refrigeration systems cannot produce temperatures below −20 °C. We have studied a two-stage NH3 H2O absorption-refrigeration system, which may be used to produce refrigeration temperatures as low as −70 °C. This system operates at three pressure levels so that the heat released by the high-pressure condenser and by the medium-pressure absorber are rejected to the ambient, while heat released by the low-pressure absorber is received at the medium-pressure evaporator. A method and a corresponding computer code have been developed to simulate the operation of the proposed system. Employing this method, we predict for 10 °C ambient temperature that the theoretical coefficient of performance ranges from 20 to 65%, while the lowest temperatures range from −70 to −30 °C; the corresponding theoretical refrigeration load ranges from 300 to 1100 kJ/kg of refrigerant produced in the generator.

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  • Rogdakis, E.D. & Antonopoulos, K.A., 1992. "Performance of a low- temperature NH3 H2O absorption-refrigeration system," Energy, Elsevier, vol. 17(5), pages 477-484.
    • Handle: RePEc:eee:energy:v:17:y:1992:i:5:p:477-484
    DOI: 10.1016/0360-5442(92)90083-C
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    Cited by:

    1. Ebrahimi, Armin & Ghorbani, Bahram & Ziabasharhagh, Masoud, 2020. "Introducing a novel integrated cogeneration system of power and cooling using stored liquefied natural gas as a cryogenic energy storage system," Energy, Elsevier, vol. 206(C).
    2. Chen, Yi & Han, Wei & Jin, Hongguang, 2017. "Proposal and analysis of a novel heat-driven absorption–compression refrigeration system at low temperatures," Applied Energy, Elsevier, vol. 185(P2), pages 2106-2116.
    3. Chen, Yi & Han, Wei & Jin, Hongguang, 2015. "An absorption–compression refrigeration system driven by a mid-temperature heat source for low-temperature applications," Energy, Elsevier, vol. 91(C), pages 215-225.
    4. Said, S.A.M. & El-Shaarawi, M.A.I. & Siddiqui, M.U., 2013. "Intermittent absorption refrigeration system equipped with an economizer," Energy, Elsevier, vol. 61(C), pages 332-344.
    5. Xu, Hao & Xu, Xiafan & Chen, Liubiao & Guo, Jia & Wang, Junjie, 2022. "A novel cryogenic condensation system combined with gas turbine with low carbon emission for volatile compounds recovery," Energy, Elsevier, vol. 248(C).
    6. Siddiqui, M.U. & Said, S.A.M., 2015. "A review of solar powered absorption systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 42(C), pages 93-115.
    7. Xu, Qingyu & Lu, Ding & Chen, Gaofei & Guo, Hao & Dong, Xueqiang & Zhao, Yanxing & Shen, Jun & Gong, Maoqiong, 2019. "Experimental study on an absorption refrigeration system driven by temperature-distributed heat sources," Energy, Elsevier, vol. 170(C), pages 471-479.

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