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Analysis of desalination performance with a thermal vapor compression system
Fergani, Z.; Triki, Z.; Menasri, R.; Tahraoui, H.; Kebir, M.; Amrane, A.; Moula, N.; Zhang, J.; Mouni, L. (2023). Analysis of desalination performance with a thermal vapor compression system. Water 15(6): 1225. https://dx.doi.org/10.3390/w15061225
In: Water. MDPI: Basel. e-ISSN 2073-4441, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoord
    Marien/Kust
Author keywords
    water desalination; multi-effect distillation; thermal vapor compression; exergoeconomic analysis; total water price
Auteurs  Top 
  • Fergani, Z.
  • Triki, Z.
  • Menasri, R.
  • Tahraoui, H.
  • Kebir, M.
  • Amrane, A.
  • Moula, N., meer
  • Zhang, J., meer
  • Mouni, L.
Abstract
    Multi-effect distillation with thermal vapor compression (MED-TVC) is a highly energy-efficient desalination technology that can provide a reliable and sustainable source of high-quality water, particularly in areas with limited energy infrastructure and water resources. In this study, a numerical model based on exergoeconomic approach is developed to analyze the economic performance of a MED-TVC system for seawater desalination. A parallel/cross feed configuration is considered because of its high energy efficiency. In addition, a parametric study is performed to evaluate the effects of some operational parameters on the total water price, such as the top brine temperature, seawater temperature, motive steam flow rate, and number of effects. The obtained results indicate that the total water price is in the range of 1.73 USD/m3 for a distilled water production of 55.20 kg/s. Furthermore, the exergy destructions in the effects account for 45.8% of the total exergy destruction. The MED effects are also identified to be the most relevant component from an exergoeconomic viewpoint. Careful attention should be paid to these components. Of the total cost associated with the effects, 75.1% is due to its high thermodynamic inefficiency. Finally, the parametric study indicates that adjusting the top brine temperature, the cooling seawater temperature, the motive steam flow rate, and the number of effects has a significant impact on the TWP, which varies between 1.42 USD/m3 and 2.85 USD/m3.
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