In light of the escalating worldwide demand for energy and water resources, the imperative for developing sustainable multigeneration systems has gained prominence in recent research and development. This study aims to investigate the feasibility and performance of a novel multigeneration plant operating at supercritical conditions to simultaneously generate freshwater, power, and dry salt as a by-product while eliminating liquid discharge. This approach offers a promising solution to address the interconnected challenges of energy and water sustainability. The theory contends that combining supercritical desalination with power generation increases energy efficiency and water production rates, surpassing conventional systems. Therefore, a model is developed employing a supercritical once-through boiler capable of supplying the necessary heat duty required for steam generation from the integrated desalination plant, producing power. Additionally, multiple heat exchangers and flash separators are implemented, enhancing freshwater productivity and obtaining dry salt, eliminating the need for brine waste disposal. A thorough sensitivity analysis is conducted utilizing a robust model developed on Aspen HYSYS to ascertain the optimal operational parameters of the proposed plant. The findings of this study underscore the potential of concurrent production of 1.65 million m/year of freshwater, 302.5 GWh of electricity, and 64,845 ton/year of dry salt for 0.38 $/m, 0.07 $/kWh, and 0.02 $/kg, respectively. In conclusion, this research highlights the prospects of revolutionary progress in multigeneration systems for sustainable development.

中文翻译：

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零液体排放多联产工厂的进展：集成发电、超临界海水淡化和制盐的新方法

鉴于全球对能源和水资源的需求不断增长，开发可持续多联产系统的必要性在最近的研究和开发中受到重视。本研究旨在研究在超临界条件下运行的新型多联产工厂的可行性和性能，该工厂可同时产生淡水、电力和副产品干盐，同时消除液体排放。这种方法为解决能源和水可持续性的相互关联的挑战提供了一个有前途的解决方案。该理论认为，将超临界海水淡化与发电相结合可以提高能源效率和产水率，超越传统系统。因此，开发了一种采用超临界直流锅炉的模型，该锅炉能够提供综合海水淡化厂产生蒸汽所需的必要热负荷，从而发电。此外，还采用了多个热交换器和闪蒸分离器，提高了淡水生产率并获得干盐，从而消除了盐水废物处理的需要。利用 Aspen HYSYS 上开发的稳健模型进行彻底的敏感性分析，以确定拟建工厂的最佳运行参数。这项研究的结果强调了以 0.38 美元/立方米、0.07 美元/千瓦时和 0.02 美元/千克的价格同时生产 165 万立方米/年淡水、302.5 吉瓦时电力和 64,845 吨/年干盐的潜力，分别。总之，这项研究凸显了多联产系统实现可持续发展的革命性进展的前景。