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Solar desalination unit coupled with a novel humidifier

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  • El-Said, Emad M.S.
  • Dahab, Mohamed A.
  • Omara, M.
  • Abdelaziz, Gamal B.

Abstract

The solar desalination system is experimentally investigated according to humidification dehumidification methodology (HDH) with hot air stream flow and heat pump as a condensation unit. The effects of high frequency ultrasound atomizer number, water height and hot air stream flow rate on distillate yield are studied. The results illustrated that increasing of atomizer number and decreasing water height increases the daily distillate production. The maximum daily freshwater productivity occurred at six atomizer number with an increase of 38.6% and 115% compared with atomizer number four and two, respectively. Furthermore, water height at 1 cm is the most efficient with an increment of 16% and 28.6% compared with 2 cm and 3 cm, respectively. The optimum hot air stream flow rate is 0.011 kg/s with an increment of 36.88%, 31.07%, 6.48%, 11.72%, 23.52% and 38.60% compared with 0.009, 0.010, 0.013, 0.014, 0.016, and 0.017 kg/s, flow rates, respectively. The air mass flow rate has a significant impact on system performance. The maximum gain output ratio (GOR) of the system is about 1.54. The daily production reaches 7.72 kg∖day, the system energy efficiency is 33.84% and 1.43% exergy efficiency the estimated cost is 0.0112 US$/L.

Suggested Citation

  • El-Said, Emad M.S. & Dahab, Mohamed A. & Omara, M. & Abdelaziz, Gamal B., 2021. "Solar desalination unit coupled with a novel humidifier," Renewable Energy, Elsevier, vol. 180(C), pages 297-312.
    • Handle: RePEc:eee:renene:v:180:y:2021:i:c:p:297-312
    DOI: 10.1016/j.renene.2021.08.105
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    References listed on IDEAS

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    1. Kabeel, A.E. & Abdelgaied, Mohamed & El-Said, Emad M.S., 2017. "Study of a solar-driven membrane distillation system: Evaporative cooling effect on performance enhancement," Renewable Energy, Elsevier, vol. 106(C), pages 192-200.
    2. Sharon, H. & Reddy, K.S., 2015. "A review of solar energy driven desalination technologies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 41(C), pages 1080-1118.
    3. Lawal, Dahiru U. & Qasem, Naef A.A., 2020. "Humidification-dehumidification desalination systems driven by thermal-based renewable and low-grade energy sources: A critical review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 125(C).
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    Cited by:

    1. Elhenawy, Yasser & Bassyouni, Mohamed & Fouad, Kareem & Sandid, Abdelfatah Marni & Abu-Zeid, Mostafa Abd El-Rady & Majozi, Thokozani, 2023. "Experimental and numerical simulation of solar membrane distillation and humidification – dehumidification water desalination system," Renewable Energy, Elsevier, vol. 215(C).
    2. El-Said, Emad M.S. & Dahab, Mohamed A. & Omara, Mohamed A. & Abdelaziz, Gamal B., 2022. "Humidification-dehumidification solar desalination system using porous activated carbon tubes as a humidifier," Renewable Energy, Elsevier, vol. 187(C), pages 657-670.
    3. Tashtoush, Bourhan & Alyahya, Wa'ed & Al Ghadi, Malak & Al-Omari, Jamal & Morosuk, Tatiana, 2023. "Renewable energy integration in water desalination: State-of-the-art review and comparative analysis," Applied Energy, Elsevier, vol. 352(C).
    4. Khalaf-Allah, Reda A. & Abdelaziz, Gamal B. & Kandel, Mohamed G. & Easa, Ammar S., 2022. "Development of a centrifugal sprayer-based solar HDH desalination unit with a variety of sprinkler rotational speeds and droplet slot distributions," Renewable Energy, Elsevier, vol. 190(C), pages 1041-1054.

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