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Analysis on maximum internal heat recovery of a mass-coupled two stage ammonia water absorption refrigeration system

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  • Du, S.
  • Wang, R.Z.
  • Chen, X.

Abstract

Two stage ammonia-water absorption refrigeration system is applicable for low driving temperature heat source and large temperature lift applications. However, low system performance weakens its advantages because the large heat dissipation brings unacceptable power consumption. Better internal heat recovery is significantly effective for system performance improvement. This paper presents an analysis on maximum internal heat recovery of a mass-coupled two stage ammonia-water absorption refrigeration system by pinch technology. Two sets of freezing conditions are assumed to carry out the analysis. The minimum system heat input and the relevant heat matching are determined by problem table method and grid method. Moreover, the feasible system configurations with optimal energy target are presented under the set conditions according to the grid diagram. The system performance is calculated directly from the problem table. The key point of the maximum internal heat recovery is the heat matching of the streams in the temperature intervals which are adjacent to the pinch point. Compared to a conventional system, the thermal COP of the derived system can be improved by 14.5% and 34.1% under the studied freezing conditions. The improvement is more effective when there is a temperature overlap between the generation and absorption processes.

Suggested Citation

  • Du, S. & Wang, R.Z. & Chen, X., 2017. "Analysis on maximum internal heat recovery of a mass-coupled two stage ammonia water absorption refrigeration system," Energy, Elsevier, vol. 133(C), pages 822-831.
    • Handle: RePEc:eee:energy:v:133:y:2017:i:c:p:822-831
    DOI: 10.1016/j.energy.2017.05.149
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    Cited by:

    1. Andrés Villarruel-Jaramillo & Manuel Pérez-García & José M. Cardemil & Rodrigo A. Escobar, 2021. "Review of Polygeneration Schemes with Solar Cooling Technologies and Potential Industrial Applications," Energies, MDPI, vol. 14(20), pages 1-30, October.
    2. Volpato, G. & Rech, S. & Lazzaretto, A. & Roumpedakis, T.C. & Karellas, S. & Frangopoulos, C.A., 2022. "Conceptual development and optimization of the main absorption systems configurations," Renewable Energy, Elsevier, vol. 182(C), pages 685-701.
    3. Akbari Kordlar, M. & Mahmoudi, S.M.S. & Talati, F. & Yari, M. & Mosaffa, A.H., 2019. "A new flexible geothermal based cogeneration system producing power and refrigeration, part two: The influence of ambient temperature," Renewable Energy, Elsevier, vol. 134(C), pages 875-887.
    4. Chen, Wei & Chenbin, Xu & Wu, Haibo & Li, Zoulu & Zhang, Bin & Yan, He, 2021. "Thermal analysis and optimization of combined cold and power system with integrated phosphoric acid fuel cell and two-stage compression–absorption refrigerator at low evaporation temperature," Energy, Elsevier, vol. 216(C).
    5. Alvaro A. S. Lima & Gustavo de N. P. Leite & Alvaro A. V. Ochoa & Carlos A. C. dos Santos & José A. P. da Costa & Paula S. A. Michima & Allysson M. A. Caldas, 2020. "Absorption Refrigeration Systems Based on Ammonia as Refrigerant Using Different Absorbents: Review and Applications," Energies, MDPI, vol. 14(1), pages 1-41, December.
    6. Wu, Wei & Zhai, Chong & Huang, Si-Min & Sui, Yunren & Sui, Zengguang & Ding, Zhixiong, 2022. "A hybrid H2O/IL absorption and CO2 compression air-source heat pump for ultra-low ambient temperatures," Energy, Elsevier, vol. 239(PB).
    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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