Delignified Wood-based Highly Efficient Solar Steam Generation Device via Promoting Both Water Transportation and Evaporation

Yuming He, Huayang Li, Xuelian Guo, Rongbo Zheng

Abstract


Wood-based solar steam generation holds great promise in alleviating fresh water crises due to its advantages: light absorbability, thermal management, water transpiration, and water evaporation. Although tremendous efforts have been made to improve wood-based solar steam generation devices, they mainly have focused on the optimization of photothermal materials to optimize light absorbability and thermal management to enhance efficiency of steam generation. This research demonstrates that delignified wood (DL-wood) can further improve the efficiency of steam generation via increasing both the water transportation and water evaporation. The results show that after placing carbon nanotubes (CNTs) on DL-wood, the efficiency of steam production is higher than that of natural wood coated with CNTs by 20% under ambient sunlight conditions. DL-wood with CNTs has the following advantages: (1) it is stable, available, and easy to extend; (2) it does not pollute the environment and will not cause discoloration or dregs when used; and (3) it is a promising efficiency-enhancing solution for renewable and portable solar power generation.

Keywords


Solar steam generation; Fast water transportation; Fast water evaporation; Delignified wood

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Welcome to BioResources! This online, peer-reviewed journal is devoted to the science and engineering of biomaterials and chemicals from lignocellulosic sources for new end uses and new capabilities. The editors of BioResources would be very happy to assist you during the process of submitting or reviewing articles. Please note that logging in is required in order to submit or review articles. Martin A. Hubbe, (919) 513-3022, hubbe@ncsu.edu; Lucian A. Lucia, (919) 515-7707, lucia-bioresources@ncsu.edu URLs: bioresourcesjournal.com; http://ncsu.edu/bioresources ISSN: 1930-2126