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Title: Liquid thermo-responsive smart window derived from hydrogel
Authors: Zhou, Yang
Wang, Shancheng
Peng, Jinqing
Tan, Yutong
Li, Chuanchang
Boey, Freddy Yin Chiang
Long, Yi
Keywords: Engineering::Materials
Issue Date: 2020
Source: Zhou, Y., Wang, S., Peng, J., Tan, Y., Li, C., Boey, F. Y. C. & Long, Y. (2020). Liquid thermo-responsive smart window derived from hydrogel. Joule, 4(11), 2458-2474.
Project: RG103/19
Journal: Joule
Abstract: Buildings account for 40% of global energy consumption, while windows are the least energy-efficient part of buildings. Conventional smart windows only regulate solar transmission. For the first time, we developed high thermal energy storage thermoresponsive smart window (HTEST smart window) by trapping the hydrogel-derived liquid within glasses. The excellent thermoresponsive optical property (90% of luminous transmittance and 68.1% solar modulation) together with outstanding specific heat capacity of liquid gives the HTEST smart window excellent energy conservation performance. Simulations suggested that HTEST window can cut off 44.6% heating, ventilation, and air-conditioning (HVAC) energy consumption compared with the normal glass in Singapore. In outdoor demonstrations, the HTEST smart window showed promising energy-saving performance in summer daytime. Compared with conventional energy-saving glasses, which need expensive equipment, the thermo-responsive liquidtrapped structure offers a disruptive strategy of easy fabrication, good uniformity, and scalability, together with soundproof functionality that opens an avenue for energy-saving buildings and greenhouses.
ISSN: 2542-4351
DOI: 10.1016/j.joule.2020.09.001
DOI (Related Dataset): 10.21979/N9/XAY2XF
Rights: © 2020 Elsevier Inc. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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