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Numerical analysis of seawater desalination based on a solar chimney power plant

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  • Ming, Tingzhen
  • Gong, Tingrui
  • de Richter, Renaud K.
  • Cai, Cunjin
  • Sherif, S.A.

Abstract

In this paper, the desalination performance of a plant variant with the same size as the Manzanares pilot model was numerically investigated. A three-dimensional compressible flow and heat transfer model has been developed, describing the air cooling process along the chimney and the associated condensation. In this plant variant, instead of installing the turbine, water droplets were sprayed for evaporation at the bottom of the chimney, and thus airflow was subjected to humidification. Results show that with increased mass fraction of water in the air, the influence of the microclimate on the local environment will also increase. The evaporation of the droplets improves the relative humidity of the air within the chimney, and the condensation level can thus be greatly reduced. Moreover, the freshwater output increases with increasing amount of water sprayed, which is beneficial for the improvement of the desalination efficiency of the system.

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  • Ming, Tingzhen & Gong, Tingrui & de Richter, Renaud K. & Cai, Cunjin & Sherif, S.A., 2017. "Numerical analysis of seawater desalination based on a solar chimney power plant," Applied Energy, Elsevier, vol. 208(C), pages 1258-1273.
  • Handle: RePEc:eee:appene:v:208:y:2017:i:c:p:1258-1273
    DOI: 10.1016/j.apenergy.2017.09.028
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    References listed on IDEAS

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    Cited by:

    1. Singh, Ajeet Pratap & Singh, Jaydeep & Kumar, Amit & Singh, O.P., 2023. "Vertical limit reduction of chimney in solar power plant," Renewable Energy, Elsevier, vol. 217(C).

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