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Experimental investigation of a developed tubular solar still with longitudinal wicked fins

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  • Alatawi, Ibrahim
  • Subhani, Tayyab
  • Ahmed, Mohamed M.Z.
  • Alqsair, Umar F.
  • Abdullah, A.S.
  • Elashmawy, Mohamed

Abstract

Water scarcity and desertification is the real threat for many countries which is rapidly increasing. With the rapid development and increase of world population, solar water desalination is a suitable solution for future technologies. However, solar water desalination still needs a lot of research effort to reach an acceptable competing level with the conventional techniques. The present study investigated the effect of the vertical fins with wicks on the performance of the tubular solar still integrated with a parabolic concentrator solar tracking system. Real field experiments were conducted under the climatic conditions of Ha'il city, Saudi Arabia. Results showed relatively high freshwater yield and efficiency of 5.72 L/m2day and 45%, respectively, with a production cost of $0.0071/L. Adding fins to the device enhanced the heat transfer conditions by increasing the contact area between the solar collector and wick material which is wet by saline water. This strategy increased the device yield and efficiency by 44.8% and 41.1%, respectively, and reduced the production cost per liter by 40.7%. The developed device can be considered as a very competitive device with a relatively high yield and considerably low cost per liter of freshwater.

Suggested Citation

  • Alatawi, Ibrahim & Subhani, Tayyab & Ahmed, Mohamed M.Z. & Alqsair, Umar F. & Abdullah, A.S. & Elashmawy, Mohamed, 2022. "Experimental investigation of a developed tubular solar still with longitudinal wicked fins," Renewable Energy, Elsevier, vol. 193(C), pages 1074-1081.
    • Handle: RePEc:eee:renene:v:193:y:2022:i:c:p:1074-1081
    DOI: 10.1016/j.renene.2022.05.081
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    References listed on IDEAS

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    1. Arunkumar, T. & Velraj, R. & Denkenberger, D.C. & Sathyamurthy, Ravishankar & Kumar, K. Vinoth & Ahsan, Amimul, 2016. "Productivity enhancements of compound parabolic concentrator tubular solar stills," Renewable Energy, Elsevier, vol. 88(C), pages 391-400.
    2. Kabeel, A.E., 2007. "Water production from air using multi-shelves solar glass pyramid system," Renewable Energy, Elsevier, vol. 32(1), pages 157-172.
    3. Ahmed, Mohamed M.Z. & Alshammari, Fuhaid & Abdullah, A.S. & Elashmawy, Mohamed, 2021. "Experimental investigation of a low cost inclined wick solar still with forced continuous flow," Renewable Energy, Elsevier, vol. 179(C), pages 319-326.
    4. Peng Tao & George Ni & Chengyi Song & Wen Shang & Jianbo Wu & Jia Zhu & Gang Chen & Tao Deng, 2018. "Solar-driven interfacial evaporation," Nature Energy, Nature, vol. 3(12), pages 1031-1041, December.
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    Cited by:

    1. Lee, Ga-Ram & Park, Chang-Dae & Lim, Hyuneui & Cho, Sung-Hoon & Choi, Seok-Min & Lim, Byung-Ju, 2023. "Performance enhancement of a diffusion-type solar still: Wettability and flowability of condensation surface," Renewable Energy, Elsevier, vol. 209(C), pages 277-285.

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