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Multi objective optimization of the MED-TVC system with exergetic and heat transfer analysis

机译：通过能量和热传递分析对MED-TVC系统进行多目标优化

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The mathematical model to predict the performance and the exergetic efficiency in a multi-effect desalination system with thermal vapor compression (MED-TVC system) has been presented. The energy and the concentration conservation law were developed for each effect, considering the boiling point elevation and the various thermodynamic losses by developing the mathematical models. These analyses led to the determination of the thermodynamic properties at different points and to the gain output ratio (GOR) values. Then, a heat transfer equation was developed in each effect and the required heat transfer areas were determined. Finally, irreversibility analysis was performed, from which the exergy destruction (considering chemical and physical exergy) and the exergetic efficiency were calculated. To obtain the optimum point of a system, multi-objective optimization was used. Determination of the best trade-off between GOR and heat transfer area was the final goal of this optimization. The optimum design led to a selected system with the lowest heat transfer area (and related cost) and the highest GOR.
机译：提出了一种数学模型，用于预测具有热蒸汽压缩的多效脱盐系统（MED-TVC系统）的性能和能效。通过建立数学模型，考虑了沸点升高和各种热力学损失，针对每种效应制定了能量和浓度守恒定律。这些分析导致确定了不同点的热力学性质，并得出了增益输出比（GOR）值。然后，在每种效应中建立一个热传递方程，并确定所需的热传递面积。最后，进行了不可逆性分析，由此计算出了本能的破坏（考虑化学和物理的本能）和能效。为了获得系统的最佳点，使用了多目标优化。确定GOR和传热面积之间的最佳折衷是此优化的最终目标。最佳设计导致选定的系统具有最低的传热面积（及相关成本）和最高的GOR。

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