材料科学
热舒适性
可穿戴计算机
计算机科学
机械工程
环境科学
嵌入式系统
工程类
气象学
物理
作者
Xiuqiang Li,Boran Ma,Jingyuan Dai,Chenxi Sui,Divya Pande,David R. Smith,L. Catherine Brinson,Po‐Chun Hsu
出处
期刊:Science Advances
[American Association for the Advancement of Science (AAAS)]
日期:2021-12-17
卷期号:7 (51)
被引量:77
标识
DOI:10.1126/sciadv.abj7906
摘要
Personal thermal management textile/wearable is an effective strategy to expand the indoor temperature setpoint range to reduce a building’s energy consumption. Usually, textiles/wearables that were engineered for controlling conduction, convection, radiation, or sweat evaporation have been developed separately. Here, we demonstrate a multimodal adaptive wearable with moisture-responsive flaps composed of a nylon/metal heterostructure, which can simultaneously regulate convection, sweat evaporation, and mid-infrared emission to accomplish large and rapid heat transfer tuning in response to human perspiration vapor. We show that the metal layer not only plays a crucial role in low-emissivity radiative heating but also enhances the bimorph actuation performance. The multimodal adaptive mechanism expands the thermal comfort zone by 30.7 and 20.7% more than traditional static textiles and single-modal adaptive wearables without any electricity and energy input, making it a promising design paradigm for personal heat management.
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