This study analyzes a technological concept for simultaneously generating power and desalinating water in a Middle East and North Africa country. An innovative, low-temperature, multi-effect desalination (LT-MED) process integrated with a concentrating solar power (CSP) plant was assessed and analyzed. A combined power and seawater desalination plant was modeled for the city of Aqaba by the Red Sea in Jordan. Parabolic-trough collectors using indirect steam generation with thermal energy storage connected with power and desalination blocks were designed. The designed plant was modeled and simulated using EBSILON Professional, a discrete energy balance simulation software, under several operating conditions, to analyze the results. An economic feasibility analysis of the combined CSP+LT-MED plant was also conducted. The simulation results showed the broad variability of the cogeneration system in terms of electricity generation and water production. The output power of the CSP plant without water production reached 58.7 MWel in June. The output power accompanied with distilled-water production with a mass flow rate of 170 m3/h was approximately 49.5 MWel. Furthermore, the number of desalination stages had the strongest influence on distillate production but limited the operational flexibility of the power plant due to the temperature gradients within the desalination stages. The distilled-water mass flow reached 498 m3/h for 10 stages. The research showed that the design successfully worked with up to €78.84 million, earned from selling the produced electricity. However, owing to highly subsidized water tariffs in Jordan (80% less than the actual cost), the integration of water desalination into the CSP plant was not economically feasible.

中文翻译：

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低温多效蒸馏组合聚光太阳能发电厂

本研究分析了一个在中东和北非国家同时发电和淡化海水的技术概念。评估和分析了与聚光太阳能 (CSP) 工厂集成的创新低温多效海水淡化 (LT-MED) 工艺。一个联合发电和海水淡化厂是为约旦红海沿岸的亚喀巴市建模的。设计了使用间接蒸汽产生的抛物线槽收集器，热能存储与电力和海水淡化块相连。使用 EBSILON Professional（一种离散能量平衡仿真软件）在多种操作条件下对设计的工厂进行建模和仿真，以分析结果。还对 CSP+LT-MED 组合装置进行了经济可行性分析。模拟结果显示了热电联产系统在发电和水生产方面的广泛可变性。6 月份不产水光热发电装置的输出功率达到 58.7 兆瓦。伴随着质量流量为 170 m3/h 的蒸馏水生产的输出功率约为 49.5 MWel。此外，脱盐阶段的数量对馏分油产量的影响最大，但由于脱盐阶段内的温度梯度限制了发电厂的运行灵活性。蒸馏水质量流量在 10 个阶段达到 498 m3/h。研究表明，该设计成功地利用了高达 7884 万欧元的收入，这些收入来自出售所产生的电力。然而，由于约旦的高补贴水费（比实际成本低 80%），