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Étude du comportement et modélisation d’une installation de dessalement d’eau de mer par distillation soumise à des régimes transitoires

Abstract : Demand for water will continue to increase over the next decades, leading to more stress on limited resources and ecosystems. However, ¾ of the Earth is water and 97% of it is seawater. Therefore, it is highly interesting to desalinate seawater. It is within this framework that this work was carried out. The goal of this PhD was to model desalination plants, based on the Multiple-Effect Distillation (MED) process, when they are operated under dynamic conditions. The MED plants are mature desalination processes with high energetic performances and are very flexible to load variations. For this study, a coupling between a MED plant and a renewable energy source, therefore transient, was assumed. To study the potential and the feasibility of such an association, a dynamic model representative of the MED plants was developed. With this, it is now possible to study the evolution of all the variables that have a consequence on the plant’s performances as well as to identify which variables are the most critical to the dynamic operation of the MED plant. This model was then combined with a concentrated solar power plant to conclude about the potential of this coupling. To assure an optimal operation of the MED plant under dynamic conditions, a regulation strategy was developed and implemented
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Laura Guimard. Étude du comportement et modélisation d’une installation de dessalement d’eau de mer par distillation soumise à des régimes transitoires. Génie des procédés. Université de Lyon, 2019. Français. ⟨NNT : 2019LYSE1025⟩. ⟨tel-02091474⟩

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