Unique thermal architecture integrating heliostat solar fields with a dual-loop power generation cycle employing thermoelectric; thermal/financial study and GA optimization

IF 6.4 2区 工程技术 Q1 THERMODYNAMICS
Amr S. Abouzied , Xiaoming Guo , Azher M. Abed , Mohammed A. Alghassab , Fahad M. Alhomayani , Baseem Khan , Yasser Elmasry , Ahmad Almadhor , Salem Alkhalaf , Albara Ibrahim Alrawashdeh
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Abstract

This study delineates the development of a solar energy system that leverages concentrated solar power (CSP) technology to supply both electricity and potable water for residential applications. The proposed thermal architecture uniquely integrates heliostat solar fields with a dual-loop power generation cycle, augmented by a seawater desalination system that employs reverse osmosis (RO) membranes. To bolster electricity production, a thermoelectric generator (TEG) has been incorporated into the system's design framework. A comprehensive analysis of the system has been performed, encompassing thermodynamic and economic evaluations. Furthermore, a parametric analysis has been executed to investigate the effects of critical parameters on the system's operational efficiency. The efficacy of the system was rigorously assessed through a case study that examined its capabilities for daily production outputs. This research, grounded in the analytical projections from Saudi Arabia and the favorable environmental conditions characteristic of the region, explores the operational performance of the system within this specific geographical context. The primary objective of this inquiry is to determine the ideal operational parameters by employing multi-criteria optimization methods tailored to the established system. Variations in compressor pressure ratios were found to significantly affect the performance of the Brayton cycle and the exergetic efficiency of the system, with optimal economic efficiency being realized at a specific pressure ratio. Furthermore, increasing the inlet temperatures in the organic Rankine cycle has been shown to improve system efficiency up to a certain limit, beyond which potential reliability issues could arise. The case study demonstrated that electricity generation peaks during the summer months, particularly in June, aligning with a high volume of freshwater production totaling 264,530 m³. The optimization efforts achieved an exergetic efficiency of 17.69 % and an overall cost of $359.58 per hour.
独特的热结构,将定日太阳能场与采用热电的双回路发电循环相结合;热/财务研究和遗传算法优化
本研究描述了利用聚光太阳能(CSP)技术为住宅应用提供电力和饮用水的太阳能系统的发展。拟议的热建筑独特地将定日太阳能场与双回路发电循环结合在一起,并通过采用反渗透(RO)膜的海水淡化系统进行增强。为了加强电力生产,热电发电机(TEG)已被纳入系统的设计框架。对该系统进行了全面的分析,包括热力学和经济评估。此外,还进行了参数分析,以研究关键参数对系统运行效率的影响。通过一个案例研究,严格评估了该系统的功效,审查了其日常生产产出的能力。本研究以沙特阿拉伯的分析预测和该地区有利的环境条件为基础,探讨了该系统在这一特定地理背景下的运行性能。本研究的主要目的是利用针对已建立的系统的多准则优化方法确定理想的运行参数。研究发现,压缩机压比的变化对布雷顿循环的性能和系统的用能效率有显著影响,在特定的压比下可以实现最佳的经济效率。此外,在有机朗肯循环中提高入口温度已被证明可以将系统效率提高到一定限度,超过该限度可能会出现潜在的可靠性问题。该案例研究表明,在夏季,特别是在6月份,发电量达到峰值,与淡水产量高达264,530立方米相一致。优化后的作业效率达到17.69%,总成本为每小时359.58美元。
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来源期刊
Case Studies in Thermal Engineering
Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes
CiteScore
8.60
自引率
11.80%
发文量
812
审稿时长
76 days
期刊介绍: Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.
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