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Second law-based thermodynamic analysis of water-lithium bromide absorption refrigeration system

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  • Kilic, Muhsin
  • Kaynakli, Omer

Abstract

In this study, the first and the second law of thermodynamics are used to analyze the performance of a single-stage water-lithium bromide absorption refrigeration system (ARS) when some working parameters are varied. A mathematical model based on the exergy method is introduced to evaluate the system performance, exergy loss of each component and total exergy loss of all the system components. Parameters connected with performance of the cycle–circulation ratio (CR), coefficient of performance (COP), Carnot coefficient of performance (COPc), exergetic efficiency (ξ) and efficiency ratio (τ)–are calculated from the thermodynamic properties of the working fluids at various operating conditions. Using the developed model, the effect of main system temperatures on the performance parameters of the system, irreversibilities in the thermal process and non-dimensional exergy loss of each component are analyzed in detail. The results show that the performance of the ARS increases with increasing generator and evaporator temperatures, but decreases with increasing condenser and absorber temperatures. Exergy losses in the expansion valves, pump and heat exchangers, especially refrigerant heat exchanger, are small compared to other components. The highest exergy loss occurs in the generator regardless of operating conditions, which therefore makes the generator the most important component of the cycle.

Suggested Citation

  • Kilic, Muhsin & Kaynakli, Omer, 2007. "Second law-based thermodynamic analysis of water-lithium bromide absorption refrigeration system," Energy, Elsevier, vol. 32(8), pages 1505-1512.
    • Handle: RePEc:eee:energy:v:32:y:2007:i:8:p:1505-1512
    DOI: 10.1016/j.energy.2006.09.003
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    Cited by:

    1. Onan, C. & Ozkan, D.B. & Erdem, S., 2010. "Exergy analysis of a solar assisted absorption cooling system on an hourly basis in villa applications," Energy, Elsevier, vol. 35(12), pages 5277-5285.
    2. Guozhong Zheng & Youyin Jing, 2009. "Thermodynamics Performance Study on Water Source Heat Pump in Variant Operating Condition," Energy & Environment, , vol. 20(4), pages 517-532, August.
    3. Gebreslassie, Berhane H. & Medrano, Marc & Boer, Dieter, 2010. "Exergy analysis of multi-effect water–LiBr absorption systems: From half to triple effect," Renewable Energy, Elsevier, vol. 35(8), pages 1773-1782.
    4. Anderson, Austin & Rezaie, Behnaz & Rosen, Marc A., 2021. "An innovative approach to enhance sustainability of a district cooling system by adjusting cold thermal storage and chiller operation," Energy, Elsevier, vol. 214(C).
    5. Privat, Romain & Qian, Jun-Wei & Alonso, Dominique & Jaubert, Jean-Noël, 2013. "Quest for an efficient binary working mixture for an absorption-demixing heat transformer," Energy, Elsevier, vol. 55(C), pages 594-609.
    6. Wang, Sheng & Xie, Xiaoyun & Jiang, Yi, 2014. "Optimization design of the large temperature lift/drop multi-stage vertical absorption temperature transformer based on entransy dissipation method," Energy, Elsevier, vol. 68(C), pages 712-721.
    7. Usón, Sergio & Kostowski, Wojciech J. & Stanek, Wojciech & Gazda, Wiesław, 2015. "Thermoecological cost of electricity, heat and cold generated in a trigeneration module fuelled with selected fossil and renewable fuels," Energy, Elsevier, vol. 92(P3), pages 308-319.
    8. Abdelhay, AymanO. & Fath, HassanE.S. & Nada, S.A., 2020. "Solar driven polygeneration system for power, desalination and cooling," Energy, Elsevier, vol. 198(C).
    9. Janghorban Esfahani, I. & Yoo, C.K., 2013. "Exergy analysis and parametric optimization of three power and fresh water cogeneration systems using refrigeration chillers," Energy, Elsevier, vol. 59(C), pages 340-355.
    10. Yılmaz, İbrahim Halil & Saka, Kenan & Kaynakli, Omer, 2016. "A thermodynamic evaluation on high pressure condenser of double effect absorption refrigeration system," Energy, Elsevier, vol. 113(C), pages 1031-1041.
    11. Altun, A.F. & Kilic, M., 2020. "Economic feasibility analysis with the parametric dynamic simulation of a single effect solar absorption cooling system for various climatic regions in Turkey," Renewable Energy, Elsevier, vol. 152(C), pages 75-93.
    12. Hassan, H.Z. & Mohamad, A.A., 2012. "A review on solar cold production through absorption technology," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(7), pages 5331-5348.
    13. Koroneos, C. & Nanaki, E. & Xydis, G., 2010. "Solar air conditioning systems and their applicability—An exergy approach," Resources, Conservation & Recycling, Elsevier, vol. 55(1), pages 74-82.
    14. Muhsin Kılıç, 2022. "Evaluation of Combined Thermal–Mechanical Compression Systems: A Review for Energy Efficient Sustainable Cooling," Sustainability, MDPI, vol. 14(21), pages 1-38, October.
    15. Chekir, Nihel & Bellagi, Ahmed, 2011. "Performance improvement of a butane/octane absorption chiller," Energy, Elsevier, vol. 36(10), pages 6278-6284.
    16. Chen, Hua & Cheng, Wen-long & Zhang, Wei-wei & Peng, Yu-hang & Jiang, Li-jia, 2017. "Energy saving evaluation of a novel energy system based on spray cooling for supercomputer center," Energy, Elsevier, vol. 141(C), pages 304-315.
    17. 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.
    18. Jonathan Ibarra-Bahena & Rosenberg J. Romero, 2014. "Performance of Different Experimental Absorber Designs in Absorption Heat Pump Cycle Technologies: A Review," Energies, MDPI, vol. 7(2), pages 1-16, February.
    19. Luo, Chunhuan & Wang, Yanan & Li, Yiqun & Wu, Yongjian & Su, Qingquan & Hu, Tianyu, 2019. "Thermodynamic properties and application of LiNO3-[MMIM][DMP]/H2O ternary working pair," Renewable Energy, Elsevier, vol. 134(C), pages 147-160.

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