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Experimental and numerical analysis of sodium-carbonate salt gradient solar-pond performance under simulated solar-radiation

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  • Kurt, Hüseyin
  • Ozkaymak, Mehmet
  • Binark, A. Korhan

Abstract

The objective of this study is to investigate experimentally and theoretically whether sodium carbonate (Na2CO3) salt is suitable for establishing a salinity gradient in a salt-gradient solar-pond (SGSP). For this purpose, a small-scale prismatic solar-pond was constructed. Experiments were conducted in the laboratory under the incident radiation from two halogen-lamps acting as a solar simulator. Furthermore, a one-dimensional transient mathematical model that describes the heat and mass transfer behaviour of the SGSP was developed. The differential equations obtained were solved numerically using a finite-difference method. It was found from the experiments that the density gradient, achieved using sodium carbonate salt, can suppress convection from the bottom to the surface of the pond.

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  • Kurt, Hüseyin & Ozkaymak, Mehmet & Binark, A. Korhan, 2006. "Experimental and numerical analysis of sodium-carbonate salt gradient solar-pond performance under simulated solar-radiation," Applied Energy, Elsevier, vol. 83(4), pages 324-342, April.
    • Handle: RePEc:eee:appene:v:83:y:2006:i:4:p:324-342
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    References listed on IDEAS

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    Cited by:

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    2. Taboada, M.E. & Cáceres, L. & Graber, T.A. & Galleguillos, H.R. & Cabeza, L.F. & Rojas, R., 2017. "Solar water heating system and photovoltaic floating cover to reduce evaporation: Experimental results and modeling," Renewable Energy, Elsevier, vol. 105(C), pages 601-615.
    3. Ding, L.C. & Akbarzadeh, A. & Tan, L., 2018. "A review of power generation with thermoelectric system and its alternative with solar ponds," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P1), pages 799-812.
    4. 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.
    5. Salata, F. & Coppi, M., 2014. "A first approach study on the desalination of sea water using heat transformers powered by solar ponds," Applied Energy, Elsevier, vol. 136(C), pages 611-618.
    6. Amigo, José & Suárez, Francisco, 2018. "Ground heat storage beneath salt-gradient solar ponds under constant heat demand," Energy, Elsevier, vol. 144(C), pages 657-668.
    7. Anagnostopoulos, Argyrios & Sebastia-Saez, Daniel & Campbell, Alasdair N. & Arellano-Garcia, Harvey, 2020. "Finite element modelling of the thermal performance of salinity gradient solar ponds," Energy, Elsevier, vol. 203(C).
    8. Suárez, Francisco & Ruskowitz, Jeffrey A. & Childress, Amy E. & Tyler, Scott W., 2014. "Understanding the expected performance of large-scale solar ponds from laboratory-scale observations and numerical modeling," Applied Energy, Elsevier, vol. 117(C), pages 1-10.
    9. Amigo, José & Meza, Francisco & Suárez, Francisco, 2017. "A transient model for temperature prediction in a salt-gradient solar pond and the ground beneath it," Energy, Elsevier, vol. 132(C), pages 257-268.
    10. Tatsidjodoung, Parfait & Le Pierrès, Nolwenn & Luo, Lingai, 2013. "A review of potential materials for thermal energy storage in building applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 18(C), pages 327-349.

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