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High Solar Energy Absorption and Human Body Radiation Reflection Janus Textile for Personal Thermal Management

High Solar Energy Absorption and Human Body Radiation Reflection Janus Textile for Personal... A large of energy consumption is required for indoor and outdoor personal heating to ameliorate the comfortable and healthy conditions. Main personal thermal management strategy is to reflect mid-infrared human body radiation for human surface temperature (THS) regulation. We demonstrate a visible Janus light absorbent/reflective air-layer fabric (Janus A/R fabric) that can passively reflect radiative heating meanwhile can actively capture the solar energy. A series of azobenzene derivatives functionalized with alkyl tails are reported to co-harvest the solar and phase-change energy. The THS covered by Janus A/R fabric can be heated up to ~ 3.7 °C higher than that covered by air-layer fabric in cold environment (5 °C). Besides, integrating the thermo- and photo-chromic properties is capable of monitoring comfort THS and residue energy storage enthalpy, respectively. According to the colour monitors, intermittent irradiation approach is proposed to prolong comfortable-THS holding time for managing energy efficiently.Graphical AbstractFor the personal thermal management, we fabricate a visible Janus light absorbent/reflective fabric, which can actively capture solar energy and passively reflect the human radiation reflection (MIR). The solar energy can be released as heat to actively warm human surface temperature up, and the reflective MIR can passively heat the human body. The surface temperature and residue energy storage can be monitored by distinct colour change.[graphic not available: see fulltext] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Fiber Materials Springer Journals

High Solar Energy Absorption and Human Body Radiation Reflection Janus Textile for Personal Thermal Management

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References (80)

Publisher
Springer Journals
Copyright
Copyright © Donghua University, Shanghai, China 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
2524-7921
eISSN
2524-793X
DOI
10.1007/s42765-023-00264-w
Publisher site
See Article on Publisher Site

Abstract

A large of energy consumption is required for indoor and outdoor personal heating to ameliorate the comfortable and healthy conditions. Main personal thermal management strategy is to reflect mid-infrared human body radiation for human surface temperature (THS) regulation. We demonstrate a visible Janus light absorbent/reflective air-layer fabric (Janus A/R fabric) that can passively reflect radiative heating meanwhile can actively capture the solar energy. A series of azobenzene derivatives functionalized with alkyl tails are reported to co-harvest the solar and phase-change energy. The THS covered by Janus A/R fabric can be heated up to ~ 3.7 °C higher than that covered by air-layer fabric in cold environment (5 °C). Besides, integrating the thermo- and photo-chromic properties is capable of monitoring comfort THS and residue energy storage enthalpy, respectively. According to the colour monitors, intermittent irradiation approach is proposed to prolong comfortable-THS holding time for managing energy efficiently.Graphical AbstractFor the personal thermal management, we fabricate a visible Janus light absorbent/reflective fabric, which can actively capture solar energy and passively reflect the human radiation reflection (MIR). The solar energy can be released as heat to actively warm human surface temperature up, and the reflective MIR can passively heat the human body. The surface temperature and residue energy storage can be monitored by distinct colour change.[graphic not available: see fulltext]

Journal

Advanced Fiber Materials – Springer Journals

Published: Jun 1, 2023

Keywords: Molecular solar energy storage; Azobenzene; Infrared reflectance; Personal energy management textile; Colour change

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