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New method to store heat energy in horizontal solar desalination still

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  • Rahim, N.H.A.

Abstract

A new approach is proposed to store excess heat energy in horizontal solar desalination stills during daytime for the continuation of the process at night. This technique divides the horizontal still into evaporating and heat storing zones and combines the advantages of shallow and deep stills. The performance of heat storing zone was studied over one year and exhaustive data were collected, analyzed and presented. To show the effectiveness of the system, its performance was compared with that of the shallow still. The heat storing capacity of the system during the daytime was found to be an average of 35.7% of the total amount of solar energy entering the system. The efficiency of recovering process, in the form of portable water produced at night, was found to be an average of 47.2% of the total amount of energy stored during the day. Furthermore, this technique does not require any kind of external power for storing and recovering processes.

Suggested Citation

  • Rahim, N.H.A., 2003. "New method to store heat energy in horizontal solar desalination still," Renewable Energy, Elsevier, vol. 28(3), pages 419-433.
    • Handle: RePEc:eee:renene:v:28:y:2003:i:3:p:419-433
    DOI: 10.1016/S0960-1481(02)00030-7
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    References listed on IDEAS

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    1. Riffat, S.B., 1995. "Solar absorption system for water desalination," Renewable Energy, Elsevier, vol. 6(2), pages 101-106.
    2. Rahim, Nabil A. & Taqi, Emad, 1992. "Comparison of free and forced condensing systems in solar desalination units," Renewable Energy, Elsevier, vol. 2(4), pages 405-410.
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    Cited by:

    1. Panchal, Hitesh N., 2016. "Use of thermal energy storage materials for enhancement in distillate output of solar still: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 61(C), pages 86-96.
    2. Gude, Veera Gnaneswar, 2015. "Energy storage for desalination processes powered by renewable energy and waste heat sources," Applied Energy, Elsevier, vol. 137(C), pages 877-898.
    3. El-Bialy, E., 2014. "Performance analysis for passive single slope single basin solar distiller with a floating absorber – An experimental study," Energy, Elsevier, vol. 68(C), pages 117-124.
    4. Dsilva Winfred Rufuss, D. & Iniyan, S. & Suganthi, L. & Davies, P.A., 2016. "Solar stills: A comprehensive review of designs, performance and material advances," Renewable and Sustainable Energy Reviews, Elsevier, vol. 63(C), pages 464-496.
    5. Sivakumar, V. & Ganapathy Sundaram, E., 2013. "Improvement techniques of solar still efficiency: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 28(C), pages 246-264.

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