Nowadays, the freshwater is one of the most critical issues for humans. In this regard, desalination systems can be beneficial. In this research, at first different types of desalination systems and their governing equations is studied. Then the energy consumption of evaporative vacuum easy desalination system with brine tank is modeled. This modeling and the equations governing the energy consumption of new subsets such as the evaporator, condenser, vacuum pump, and other pumps are presented. In the end, the economic modeling of the system is investigated. The feasibility of using the system is reported in three cities (Abu Dhabi, Las Palmas, and Perth). The results shown that the annual operating cost of the pumps is estimated to be 0.19 M€ yr⁻¹, 0.51 M€ yr⁻¹ and 0.14 M€ yr⁻¹ for Abu Dhabi and Las Palmas and Perth respectively. Also, the annual cost of fresh water production is compared with other reaches in these cities. The results are shown that Perth has the lowest cost of the fresh water output at 0.67 M€ yr⁻¹ and Las Palmas has the highest cost of fresh water production with 0.104 M€ yr⁻¹. The reason is the difference in the electricity prices in these cities.

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带盐水罐的蒸发式真空简易脱盐系统的能源经济分析

如今，淡水已成为人类最关键的问题之一。在这方面，脱盐系统可能是有益的。在这项研究中，首先研究了不同类型的海水淡化系统及其控制方程。然后对带盐水箱的蒸发式真空易脱盐系统的能耗进行了建模。给出了该模型和控制新的子集（如蒸发器，冷凝器，真空泵和其他泵）的能耗的方程式。最后，研究了系统的经济模型。在三个城市（阿布扎比，拉斯帕尔马斯和珀斯）报告了使用该系统的可行性。结果表明，泵的年运行成本估计为19万欧元- ^1年，51万欧元- ^1年和14万欧元^-1分别代表阿布扎比，拉斯帕尔马斯和珀斯。此外，将淡水生产的年成本与这些城市的其他河段进行了比较。结果表明，珀斯的淡水生产成本最低，为67万欧元^-1，拉斯帕尔马斯的淡水生产成本最高，为10.04百万欧元^-1。原因是这些城市的电价不同。