Etude Et Amelioration De La Performance D'un Distillateur Solaire Couple (serre- Film Capillaire) Dans La Region D’ouargla
Résumé: In this work, a model of numerical simulation is presented, to study the performance of a solar distiller with double nonsymmetrical slope modified by the integration of a cell condensation cooled by capillary film of very thin water on the pane cover directed towards north. The various phenomena of transfer of heat and mass were considered to evaluate the distillate production. In order to appreciate the developed model, numerical calculations were made to optimize various parameters of design, namely the flow and the feeding temperature of brackish water and the form factor of condensations cell under the climatic conditions of the town of Ouargla city, Algerian south. Numerical results are also presented in this investigation; these results show that this configuration performance is higher 50-70% than that of a conventional distiller in the same meteorological conditions. The annual average production of this device is about 7kg/m2. The tilt angle of 60° and the basin without shadow have a significant effect on distillate production. The mass of fresh water is reduced by 7% when the water depth in the basin changes from 0.0005m tob0.025m. The effect of wind velocity is 53% when it varies from 1m/s to 7m/s.
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