Computer modeling of employing binary/ternary organic blends in integrated HP-assisted HDH desalination systems

IF 8.3 1区工程技术 Q1 ENGINEERING, CHEMICAL

Desalination Pub Date : 2024-11-01 DOI:10.1016/j.desal.2024.118260

Yanli Xu , Hui Li , Azher M. Abed , M.A. El-Shorbagy , Ashit Kumar Dutta , Sherzod Abdullaev , Hakim AL Garalleh , Rania Mona Alqaralleh , Yasser Elmasry , Albara Ibrahim Alrawashdeh

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引用次数: 0

Abstract

The global demand for potable water is rising, prompting the development of various energy systems for distilled water production. However, the significance of utilizing multicomponent working fluids in these systems has been largely overlooked. This study presents computer modeling of three HDH-based distillation units powered by two conventional heat pump cycles, namely, the simple and vapor injection heat pumps (first and second models) and an innovative heat pump cycle with an ejector expander (third model). The significance of the research lies in its pioneering investigation of utilizing two- and three-component mixtures in heat pump-based desalination units, which has not been previously explored. The study's primary aim is to determine whether using multicomponent working fluids instead of pure fluids or introducing structural modifications can more effectively enhance the performance of heat pump-based distillation units. The proposed models are simulated using EES and MATLAB software, with the study focusing on energetic, exergetic, exergoeconomic, and heat exchanger modeling to evaluate the feasibility of the configurations. The findings revealed that the structural modifications in the third scenario using R134a resulted in the highest GOR, with improvements of 44 % and 26.03 %, respectively, compared to the other scenarios. However, utilizing binary blend R22/R142b with different compositions improved the GOR of the first to three scenarios by 41.26 %, 29.06 %, and 11.87 %, respectively. Furthermore, in this case, the unit cost of distilled water for the first, second, and third scenarios increased by 12.87 %, 14.32 %, and 12.70 %, respectively. Finally, the first scenario has the highest NPV of 4.40 M$ and the shortest PP of 8.13 years. Therefore, utilizing the blend in a simple heat pump proves to be more efficient and cost-effective than implementing structural modifications.

查看原文本刊更多论文

在集成式 HP 辅助 HDH 海水淡化系统中使用二元/三元有机混合物的计算机建模

全球对饮用水的需求不断增长，促使人们开发出各种用于蒸馏水生产的能源系统。然而，在这些系统中利用多组分工作流体的重要性在很大程度上被忽视了。本研究介绍了以两种传统热泵循环（即简单热泵和蒸汽喷射热泵（第一和第二种模式）以及带有喷射膨胀机的创新热泵循环（第三种模式））为动力的三种基于 HDH 的蒸馏装置的计算机建模。这项研究的意义在于，它开创性地研究了在基于热泵的海水淡化装置中利用双组分和三组分混合物的问题，而这在以前是没有过的。研究的主要目的是确定使用多组分工作流体代替纯流体或引入结构调整是否能更有效地提高基于热泵的蒸馏装置的性能。使用 EES 和 MATLAB 软件对所提出的模型进行了模拟，研究侧重于能量、能效、能效经济和热交换器建模，以评估配置的可行性。研究结果表明，在第三种方案中，使用 R134a 进行结构改造的 GOR 最高，与其他方案相比，分别提高了 44% 和 26.03%。然而，使用不同成分的 R22/R142b 二元混合物则使第一至三种方案的 GOR 分别提高了 41.26 %、29.06 % 和 11.87 %。此外，在这种情况下，第一、第二和第三种方案的蒸馏水单位成本分别增加了 12.87 %、14.32 % 和 12.70 %。最后，第一种方案的净现值最高，为 440 万美元，PP 期最短，为 8.13 年。因此，在简单的热泵中使用混合物比进行结构改造更有效、更经济。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Desalination 工程技术-工程：化工

CiteScore

14.60

自引率

20.20%

发文量

619

审稿时长

41 days

期刊介绍： Desalination is a scholarly journal that focuses on the field of desalination materials, processes, and associated technologies. It encompasses a wide range of disciplines and aims to publish exceptional papers in this area. The journal invites submissions that explicitly revolve around water desalting and its applications to various sources such as seawater, groundwater, and wastewater. It particularly encourages research on diverse desalination methods including thermal, membrane, sorption, and hybrid processes. By providing a platform for innovative studies, Desalination aims to advance the understanding and development of desalination technologies, promoting sustainable solutions for water scarcity challenges.