Experimental validation of the distillation module of a desalination station using the SMCEC principle |
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| Authors: | H Ben Bacha T Damak M Bouzguenda andA Y Maalej |
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| Affiliation: | 1. L.A.S.E.M. (LAboratoire des Systèmes Electro-Mécaniques), Department of Mechanical Engineering, Ecole Nationale d’Ingénieurs de Sfax B.P. W 3035, Sfax, Tunisia;2. L.E.E.E. (Laboratoire de l’Eau, de l’Energie et de 1’Environnement), Department of Mechanical Engineering, Ecole Nationale d’Ingénieurs de Sfax B.P. W 3035, Sfax, Tunisia;3. U.C.A. (Unité de Commande Automatique), Department of Mechanical Engineering, Ecole Nationale d’Ingénieurs de Sfax B.P. W 3038, Sfax-Tunisia;1. Institute of Planetary Research, German Aerospace Center (DLR), 12489 Berlin, Germany;2. Freie Universität Berlin, Inst. of Geosciences, Planetology and Remote Sensing, 12249 Berlin, Germany;3. Lunar and Planetary Institute, Houston, TX 77058, USA;4. John Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA;5. Planetary Science Institute, Tucson, AZ 85719, USA;6. School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA;7. Department of Earth and Space Sciences, University of California, Los Angeles, CA 90095-1567, USA;8. National Institute of Astrophysics, 00133 Rome, Italy;9. Brown University, Providence, RI 02912, USA;10. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA;1. State Key Laboratory of Robotics and System, Harbin Institute of Technology, No. 92, Xidazhi Street, Nangang District, Harbin 150001, China;2. Beijing Institute of Spacecraft System Engineering, Beijing 100094, China |
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| Abstract: | This paper presents the simulation and the experimental validation of the distillation module of a desalination unit, currently operating in Sfax, Tunisia. The desalination process is based on the Solar Multiple Condensation Evaporation Cycle (SMCEC) principle.The work presented in this paper focuses on modelling the desalination module as it is supplied with either water heated by solar energy or geothermal water. Geothermal water resources are abundant in Tunisia with salinity levels of 1–50 g/l. The simulation of the dynamic behaviour of the desalination module with and without disturbances on the inlet temperature was carried out to predict the variations of key output variables subjected to thermal variations. Such variables include water temperature, air temperature, humidity in the evaporation and condensation chambers and the amount of produced distilled water. To validate the dynamic model of the distillation module, a series of experiments was conducted. Experimental results were compared with the simulation results. It was shown that the developed model is able to predict accurately the trends of the heat and mass characteristics of the evaporation and condensation chambers. As a result, the proposed model can be used to design and test the behaviour of such a type of desalination unit. |
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| Keywords: | Disturbances Evaporation Condensation Water desalination Numerical simulation Experimental validation SMCEC Dynamic behaviour |
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