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Absorption/regeneration non-conventional system for water extraction from atmospheric air

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  • Sultan, Ahmed

Abstract

The present work suggests a non-conventional method of water production from atmospheric air, on a 24-h basis using a compact system. The operation of the system is described and its efficiency is defined. The system performs under forced convection absorption and regeneration through a packed tower. The packed tower consists of two identical columns, each of them is packed with an identical bed. Each bed consists of vertical multi-layers of cloth material impregnated with calcium chloride solution of different concentrations. A numerical model, based on the experimental results, has been developed to predict the performance of the system under various operating conditions. The system efficiency is found to have peak values at certain cycle times, desiccant final concentration, regeneration temperature and absorption air stream velocity. It is also found that the maximum efficiency increases with initial concentration and decreases with the increase of the regeneration air stream velocity and absorption temperature.

Suggested Citation

  • Sultan, Ahmed, 2004. "Absorption/regeneration non-conventional system for water extraction from atmospheric air," Renewable Energy, Elsevier, vol. 29(9), pages 1515-1535.
    • Handle: RePEc:eee:renene:v:29:y:2004:i:9:p:1515-1535
    DOI: 10.1016/S0960-1481(03)00020-X
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    References listed on IDEAS

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    1. Gad, H.E & Hamed, A.M & El-Sharkawy, I.I, 2001. "Application of a solar desiccant/collector system for water recovery from atmospheric air," Renewable Energy, Elsevier, vol. 22(4), pages 541-556.
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    Cited by:

    1. El-Ghonemy, A.M.K., 2012. "Fresh water production from/by atmospheric air for arid regions, using solar energy: Review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(8), pages 6384-6422.
    2. Reif, John H. & Alhalabi, Wadee, 2015. "Solar-thermal powered desalination: Its significant challenges and potential," Renewable and Sustainable Energy Reviews, Elsevier, vol. 48(C), pages 152-165.
    3. Kabeel, A.E., 2007. "Water production from air using multi-shelves solar glass pyramid system," Renewable Energy, Elsevier, vol. 32(1), pages 157-172.

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