Anastasiia Taranova , Elisa Moretti , Kamran Akbar , Ghulam Dastgeer , Alberto Vomiero
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引用次数: 0
摘要
太阳能水蒸发对于解决全球缺水问题至关重要,尤其是在淡水资源有限的地区。通过利用光热材料,太阳能水蒸发利用太阳辐射产生热量,进而加速水的蒸发,产生清洁的饮用水。随后,水蒸气被凝结成淡水,为解决缺水问题提供了一个可持续的解决方案。这一研究领域引起了科学界的极大兴趣,发表了六千多篇论文。据报道,太阳能吸收器在一个太阳照射下的蒸发率超过 100 kg m-2 h-1,远远超过二维吸收器表面可达到的 1.47 kg m-2 h-1 的理论极限(假设潜热恒定为 2444 J g-1)。本综述探讨了理论值与实际值之间的这一重大差异。以 3 kg m-2 h-1 为临界值(在一个太阳照射下)可缩小关注范围,便于对高速率蒸发器进行分析。文中讨论了导致高蒸发率的关键挑战和因素,为该领域的进步提供了全面的见解。
Emerging Strategies to Achieve Interfacial Solar Water Evaporation Rate Greater than 3 kg·m-2·h-1 under One Sun Irradiation
Solar water evaporation is vital for addressing global water scarcity, particularly in regions with limited freshwater. Through the utilization of photothermal materials, solar water evaporation harnesses solar radiation to generate heat, which in turn accelerates the evaporation of water, producing clean drinking water. Subsequently, the vapor is condensed to produce fresh water, offering a sustainable solution to water scarcity. This research field has garnered immense scientific interest, with over six thousand publications. Reported solar absorber evaporation rates exceed 100 kg m−2 h−1 under one sun irradiation, far surpassing the theoretical limit of 1.47 kg m−2 h−1 achievable on two-dimensional absorber surfaces, assuming constant latent heat at 2444 J g−1. This review addresses this significant discrepancy in theoretical and practical values. A cut-off of 3 kg m−2 h−1 (under one sun irradiation) is considered to narrow focus, facilitating analysis of high-rate evaporators. Critical challenges and factors contributing to high evaporation rates are discussed, providing comprehensive insights into field advancements.
期刊介绍:
Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem.
Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.