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Title: Enhancing the dehumidification efficiency of solar-assisted liquid desiccant air dehumidifiers using nanoscale TiO 2 super-hydrophilic coating
Authors: Dong, C 
Lu, L 
Keywords: Energy consumption
Liquid desiccant air dehumidifier
Nanoscale TiO2 super-hydrophilic coating
Surface wettability
Issue Date: 2019
Publisher: Elsevier
Source: Energy procedia, 2019, v. 158, p. 5765-5769 How to cite?
Journal: Energy procedia 
Abstract: Humidity control of indoor air is very important to both indoor occupants and indoor building materials. The liquid desiccant air dehumidifier is attracting much attention due to its lower energy consumption. However, the incomplete wetting conditions present negative effect on the development of liquid desiccant air dehumidifiers. Therefore, this paper aims to develop a novel nanoscale TiO2 super-hydrophilic coating to increase the surface wettability and improve the dehumidification performance as well. XRD test and FESEM test are conducted to investigate the characteristics of the TiO2 super-hydrophilic coating. The dehumidification performance is significantly improved by the coating. The absolute humidity change increases from 3.2 g/kg to 4.9 g/kg and the mass transfer coefficient from 70.05 g/(m 2 s) to 90.05 g/(m 2 s) . The performance enhancement is attributed to the increase of wetting area and the decrease of falling film thickness. This research provides an effective approach to improve the dehumidification performance and to reduce the building energy consumption.
Description: 10th International Conference on Applied Energy, ICAE 2018, Hong Kong, 22-25 August 2018
EISSN: 1876-6102
DOI: 10.1016/j.egypro.2019.01.554
Rights: © 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license ( Peer-review under responsibility of the scientific committee of ICAE2018 – The 10th International Conference on Applied Energy.
The following publication Dong, C., & Lu, L. (2019). Enhancing the dehumidification efficiency of solar-assisted liquid desiccant air dehumidifiers using nanoscale TiO2 super-hydrophilic coating. Energy Procedia, 158, 5765-5769 is available at
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