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Energy and exergo-economic analysis of a parallel feed multi-effect system integrated with humidification–dehumidification system for brine recovery

Author

Listed:
  • Osman Shamet
  • Bilal A. Qureshi
  • Mohamed Antar

Abstract

Desalination technologies reject large amounts of brine with significant value back to sea. The concept of hybridization of different desalination technologies has proven that it can be effective in terms of reducing rejected brine and increasing the freshwater production rate as well as reducing the freshwater cost. In this work, brine recovery to improve water production through a simple modified configuration of integrating a multi-effect desalination (MED) system with humidification–dehumidification system (HDH). The rejected brine of the MED system is used as the feed for the HDH system without the need for preheating the rejected brine since it leaves the MED at a suitable temperature for HDH application. The study focuses on investigating the effect of different operating conditions on the increase in system freshwater production rate and recovery ratio as well as the exergetic efficiency. Parameters investigated include steam temperature, feed salinity, number of brine streams, cooling water flow rate, and ambient temperature. An exergo-economic analysis has also been conducted using the cost flow method to evaluate the freshwater production cost for the modified system. Results indicate that the integration of HDH can increase the water production rate by a maximum of 7.82% and produce fresh water at 2.08 $/m 3 compared to 2.094 $/m 3 when using the standalone system under the same conditions.

Suggested Citation

  • Osman Shamet & Bilal A. Qureshi & Mohamed Antar, 2025. "Energy and exergo-economic analysis of a parallel feed multi-effect system integrated with humidification–dehumidification system for brine recovery," Energy & Environment, , vol. 36(4), pages 1775-1796, June.
    • Handle: RePEc:sae:engenv:v:36:y:2025:i:4:p:1775-1796
    DOI: 10.1177/0958305X231204034
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    References listed on IDEAS

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    1. Dahiru U. Lawal & Mohamed A. Antar & Atia E. Khalifa, 2021. "Integration of a MSF Desalination System with a HDH System for Brine Recovery," Sustainability, MDPI, vol. 13(6), pages 1-27, March.
    2. Giwa, Adewale & Akther, Nawshad & Housani, Amna Al & Haris, Sabeera & Hasan, Shadi Wajih, 2016. "Recent advances in humidification dehumidification (HDH) desalination processes: Improved designs and productivity," Renewable and Sustainable Energy Reviews, Elsevier, vol. 57(C), pages 929-944.
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