蒸发器
材料科学
蒸发
海水淡化
山毛榉
复合材料
多孔性
环境科学
机械工程
化学
热交换器
工程类
热力学
膜
物理
生物化学
地理
林业
作者
Youming Dong,Jian Wang,Kaili Wang,Cheng Li,Yahui Cai,Jianzhang Li,Su Shiung Lam,Christian Sonne
标识
DOI:10.1016/j.jclepro.2023.138024
摘要
Interfacial solar-driven evaporation of saline water is a promising technique that enables worldwide upscaling of freshwater with a minimum of carbon footprint. For this purpose, wood is demonstrating a desirable substrate due to its high porosity and low thermal conductivity. Despite much effort has been dedicated to improving the performance of wood evaporators, their scalability and reliability still restrict applications. Here we present a large-scale and highly-efficient wood-based evaporator with corrugated sheet structures using a facile mechanical processing strategy that utilizes the excellent processability of wood. The corrugated structure of the longitudinal wood block, transports water in the longitudinal direction and thereby increases the evaporation area. With the inclusion of a Chinese ink layer and hydrophobic treatment, the prepared wood-based evaporators exhibit a high evaporation rate (1.77 kg m−2 h−1 for spruce wood, 1.42 kg m−2 h−1 for beech wood) and efficiency (111.53% for spruce wood, 88.73% for beech wood) at 1 sun irradiation and continuous water desalination, which is superior to both reported longitudinal and most transverse wood-based evaporators. This work demonstrates a universal and economy strategy for preparing large-sized wood-based solar evaporators with processability, stable performance and high efficiency.
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