光伏支持的混合大气集水系统：不同配置的比较性能分析

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2025-06-07 DOI:10.1016/j.csite.2025.106470

Kamil Neyfel Çerçi

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引用次数: 0

摘要

本研究首次对八种光伏支持的混合大气集水（AWH）配置进行了性能比较分析，这些配置集成了干燥剂轮、热交换器和蒸汽压缩制冷（VCR）装置，使用低gwp制冷剂。新颖的混合设计结合了干燥剂辅助除湿，内部热回收和可再生能源，以提高产水量，同时最大限度地减少电力需求。关键性能指标，如性能系数（COPr）、第二定律效率（η2,c）、集水效率（WHE）和所需的光伏板面积，在不同的再生温度、气流速率和气候区域下进行了评估。在所有设置中，配置8具有两级干燥剂轮，热交换器和废热利用，始终以最低的能耗和最高的WHE提供最佳性能。在Mersin典型的夏季条件下，这种配置每天产生大约17升的水。此外，它在温暖和适度潮湿（W&；MH）气候区表现最佳，在水回收和能源效率之间提供了最佳平衡。该方法的主要优点是运行节能，适应不同的气候条件。此外，利用冷凝器余热可减少高达67%的电力需求。这种混合系统为缺水地区的分散采水提供了一种实用和可持续的解决方案。

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Photovoltaic-supported hybrid atmospheric water harvesting systems: comparative performance analysis of different configurations

This study presents a first-time comparative performance analysis of eight photovoltaic-supported hybrid atmospheric water harvesting (AWH) configurations that integrate desiccant wheels, heat exchangers, and vapor-compression refrigeration (VCR) units, using low-GWP refrigerants. The novel hybrid design combines desiccant-assisted dehumidification, internal heat recovery, and renewable energy to enhance water yield while minimizing electricity demand. Key performance metrics, such as coefficient of performance (COP_r), second-law efficiency (η_2,c), water harvesting efficiency (WHE), and required PV panel area, were evaluated under varying regeneration temperatures, airflow rates, and climate zones. Among all setups, Configuration 8, featuring two-stage desiccant wheels, a heat exchanger, and waste heat utilization, consistently delivered the best performance with the lowest energy consumption and highest WHE. Under typical summer conditions in Mersin, this configuration yielded approximately 17 L/day of water. Furthermore, it performed best in the Warm and Moderately Humid (W&MH) climate zone, offering an optimal balance between water recovery and energy efficiency. The main advantage of the method lies in its energy-efficient operation and adaptability to different climatic conditions. Additionally, utilizing condenser waste heat reduced electricity demand by up to 67 %. This hybrid system offers a practical and sustainable solution for decentralized water production in water-scarce regions.

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来源期刊

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.