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Thermoeconomic analysis of a low-temperature multi-effect thermal desalination system coupled with an absorption heat pump

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  • Wang, Yongqing
  • Lior, Noam

Abstract

This study presents a thermal and economic performance analysis of a LT-MEE (low-temperature multi-effect evaporation) water desalination system coupled with an LiBr–H2O ABHP (absorption heat pump). A 60–78% water production increase over a stand-alone LT-MEE run at the same heat source conditions can be obtained owing to the coupling. A detailed thermodynamic sensitivity analysis of the ABHP-MEE is performed. Although ABHP is usually considered to be more efficient than an EHP (ejector heat pump), we also compare the thermal performance of the ABHP-MEE with an integrated EHP-MEE system. The results show that the ABHP has a more favorable thermal performance than the EHP only in certain parameters ranges. The reasons and these parameters ranges are discussed. The economic analysis of the ABHP-MEE shows that the capital cost of the ABHP accounts for a very small part of the water cost, and when designing an ABHP for an existing MEE unit, the parameters selection of an ABHP for lower water cost is consistent with that for better thermal performance. The unit steam cost is an important factor in determining whether the ABHP-MEE or the EHP-MEE is economically favorable, with the influence discussed. Also, a recommended general procedure for economic comparison between ABHP-MEE and EHP-MEE is outlined.

Suggested Citation

  • Wang, Yongqing & Lior, Noam, 2011. "Thermoeconomic analysis of a low-temperature multi-effect thermal desalination system coupled with an absorption heat pump," Energy, Elsevier, vol. 36(6), pages 3878-3887.
    • Handle: RePEc:eee:energy:v:36:y:2011:i:6:p:3878-3887
    DOI: 10.1016/j.energy.2010.09.028
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    References listed on IDEAS

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    1. Song, Zhi-Ping & Hu, San-Gao & Zhou, Shao-Xiang, 1991. "Indigenous construction of sizeable desalination units for dual-purpose power plants in China," Energy, Elsevier, vol. 16(4), pages 721-726.
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    7. Garousi Farshi, L. & Mahmoudi, S.M.S. & Rosen, M.A., 2013. "Exergoeconomic comparison of double effect and combined ejector-double effect absorption refrigeration systems," Applied Energy, Elsevier, vol. 103(C), pages 700-711.
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    9. Wu, Wei & Wang, Baolong & Shi, Wenxing & Li, Xianting, 2014. "Absorption heating technologies: A review and perspective," Applied Energy, Elsevier, vol. 130(C), pages 51-71.
    10. Zare, V. & Mahmoudi, S.M.S. & Yari, M. & Amidpour, M., 2012. "Thermoeconomic analysis and optimization of an ammonia–water power/cooling cogeneration cycle," Energy, Elsevier, vol. 47(1), pages 271-283.
    11. Sharan, Prashant & Bandyopadhyay, Santanu, 2016. "Integration of thermo-vapor compressor with multiple-effect evaporator," Applied Energy, Elsevier, vol. 184(C), pages 560-573.
    12. Thu, Kyaw & Kim, Young-Deuk & Amy, Gary & Chun, Won Gee & Ng, Kim Choon, 2013. "A hybrid multi-effect distillation and adsorption cycle," Applied Energy, Elsevier, vol. 104(C), pages 810-821.
    13. Li, Chennan & Goswami, D. Yogi & Shapiro, Andrew & Stefanakos, Elias K. & Demirkaya, Gokmen, 2012. "A new combined power and desalination system driven by low grade heat for concentrated brine," Energy, Elsevier, vol. 46(1), pages 582-595.
    14. Araghi, Alireza Hosseini & Khiadani, Mehdi & Hooman, Kamel, 2016. "A novel vacuum discharge thermal energy combined desalination and power generation system utilizing R290/R600a," Energy, Elsevier, vol. 98(C), pages 215-224.
    15. Janghorban Esfahani, Iman & Kang, Yong Tae & Yoo, ChangKyoo, 2014. "A high efficient combined multi-effect evaporation–absorption heat pump and vapor-compression refrigeration part 1: Energy and economic modeling and analysis," Energy, Elsevier, vol. 75(C), pages 312-326.
    16. Sharan, Prashant & Bandyopadhyay, Santanu, 2016. "Energy optimization in parallel/cross feed multiple-effect evaporator based desalination system," Energy, Elsevier, vol. 111(C), pages 756-767.
    17. Xu, Z.Y. & Wang, R.Z. & Xia, Z.Z., 2013. "A novel variable effect LiBr-water absorption refrigeration cycle," Energy, Elsevier, vol. 60(C), pages 457-463.
    18. Elsayed, Mohamed L. & Mesalhy, Osama & Mohammed, Ramy H. & Chow, Louis C., 2019. "Performance modeling of MED-MVC systems: Exergy-economic analysis," Energy, Elsevier, vol. 166(C), pages 552-568.
    19. Dehghani, Mohammad Javad & Yoo, ChangKyoo, 2020. "Three-step modification and optimization of Kalina power-cooling cogeneration based on energy, pinch, and economics analyses," Energy, Elsevier, vol. 205(C).
    20. Janghorban Esfahani, Iman & Yoo, Changkyoo, 2014. "A highly efficient combined multi-effect evaporation-absorption heat pump and vapor-compression refrigeration part 2: Thermoeconomic and flexibility analysis," Energy, Elsevier, vol. 75(C), pages 327-337.
    21. van de Bor, D.M. & Infante Ferreira, C.A., 2013. "Quick selection of industrial heat pump types including the impact of thermodynamic losses," Energy, Elsevier, vol. 53(C), pages 312-322.

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