A new design for a passive atmospheric multistage still

J. Franco and L. Saravia

Renewable Energy, 1994, vol. 4, issue 1, 119-122

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.

Date: 1994
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:4:y:1994:i:1:p:119-122

DOI: 10.1016/0960-1481(94)90073-6

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