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A new design for a passive atmospheric multistage still

Author

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  • Franco, J.
  • Saravia, L.

Abstract

A new design for passive atmospheric multiple effect distillation unit is proposed. Inclined metallic surfaces covered with a cotton fabric and placed one over the other in a box are used. The cold salty water is fed only in the upper stage and flows along each surface, falling from one stage to the next by gravity, reaching finally a heated tray at the bottom. Vapour condenses below each surface and produces the water evaporation in the upper side of the same surface. Experiments have been performed with a prototype and the results are discussed and compared with the values obtained from a computational model. The model is used to evaluate the effect of changes in different system parameters. A small unit to be used by families in isolated areas is described.

Suggested Citation

  • Franco, J. & Saravia, L., 1994. "A new design for a passive atmospheric multistage still," Renewable Energy, Elsevier, vol. 4(1), pages 119-122.
    • Handle: RePEc:eee:renene:v:4:y:1994:i:1:p:119-122
    DOI: 10.1016/0960-1481(94)90073-6
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    Cited by:

    1. Abdessemed, Amina & Bougriou, Cherif & Guerraiche, Djemaa & Abachi, Rabah, 2019. "Effects of tray shape of a multi-stage solar still coupled to a parabolic concentrating solar collector in Algeria," Renewable Energy, Elsevier, vol. 132(C), pages 1134-1140.
    2. Dellicompagni, Pablo & Franco, Judith, 2019. "Potential uses of a prototype linear Fresnel concentration system," Renewable Energy, Elsevier, vol. 136(C), pages 1044-1054.

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