Exploring interfacial solar evaporation heat transfer mechanisms of photothermal solar still systems

IF 6.4 2区工程技术 Q1 THERMODYNAMICS Case Studies in Thermal Engineering Pub Date : 2025-04-01 Epub Date: 2025-02-15 DOI:10.1016/j.csite.2025.105883

Milad Haghighat , Mohammad Mahdi Entezarian , Mohsen Salimi , Majid Amidpour

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Abstract

The growing global demand for freshwater, coupled with the scarcity of freshwater resources and the environmental concerns associated with fossil fuel-based water desalination, necessitates innovative approaches to freshwater production. This paper presents a novel method for desalinating water using renewable energy sources. The proposed method involves the use of a glass chamber with a sloping roof, filled with seawater of 3.5 % salt concentration, and covered with porous filaments. These filaments facilitate the absorption of saltwater, promote air circulation, and harness solar radiation within the chamber, thereby enhancing the process of saltwater absorption and evaporation. The evaporated water vapor condenses on the sloping glass roof, and the external airflow cools the water, leading to the collection of freshwater droplets at the bottom of the chamber. This solar-powered desalination device offers a sustainable solution for regions lacking access to freshwater resources or during emergencies requiring immediate access to freshwater.

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全球对淡水的需求日益增加，加上淡水资源的匮乏和与矿物燃料为基础的海水淡化有关的环境问题，需要对淡水生产采取创新的办法。本文提出了一种利用可再生能源淡化海水的新方法。所提出的方法包括使用一个倾斜屋顶的玻璃室，充满3.5%盐浓度的海水，并覆盖有多孔细丝。这些细丝有助于吸收盐水，促进空气循环，并利用室内的太阳辐射，从而增强盐水的吸收和蒸发过程。蒸发的水蒸气在倾斜的玻璃顶板上凝结，外部气流使水冷却，导致淡水水滴在腔室底部收集。这种太阳能海水淡化装置为缺乏淡水资源的地区或在紧急情况下需要立即获得淡水的地区提供了可持续的解决方案。

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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.