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用于个人降温和保暖的具有定制热传导和热辐射特性的双功能非对称织物
Yucan Peng, Hiang Kwee Lee, David S. Wu, Yi Cui
工程（英文） ›› 2022, Vol. 10 ›› Issue (3) : 167-173.
PDF(1734 KB)
PDF(1734 KB)
用于个人降温和保暖的具有定制热传导和热辐射特性的双功能非对称织物
Bifunctional Asymmetric Fabric with Tailored Thermal Conduction and Radiation for Personal Cooling and Warming
为了让人体感到热舒适，同时节约能源，个人热管理正逐渐成为一种颇有前景的策略。通过更好地控制人体散热，个人热管理可以实现有效的个人降温和保暖。本文提出了一种简单的表面改性方法，在商用织物的基础上定制热传导和热辐射特性，以便更好地管理从人体到环境的整个传热路径。本文对一种同时具有降温和保暖效果的双功能非对称织物（BAF）进行论证。凭借粗糙度不对称和表面改性等优点，BAF在降温模式下通过增强热传导和热辐射表现出显著的降温效果；在保暖模式下，两条路径的散热都减少，从而实现个人保暖。结果表明，在BAF的降温和保暖模式下测得的皮肤温差可达4.6 ℃，表明一件BAF衣服可以扩大人体的热舒适区。希望本研究可为用于个人热管理的织物的设计提供新的视角，并为现有的用于个人降温和保暖的织物的简单改性提供新的解决方案。
Personal thermal management is emerging as a promising strategy to provide thermal comfort for the human body while conserving energy. By improving control over the heat dissipating from the human body, personal thermal management can provide effective personal cooling and warming. Here, we propose a facile surface modification approach to tailor the thermal conduction and radiation properties based on commercially available fabric, to realize better management of the whole heat transport pathway from the human body to the ambient. A bifunctional asymmetric fabric (BAF) offering both a cooling and a warming effect is demonstrated. Due to the advantages of roughness asymmetry and surface modification, the BAF demonstrates an effective cooling effect through enhanced heat conduction and radiation in the cooling mode; in the warming mode, heat dissipation along both routes is reduced for personal warming. As a result, a 4.6 °C skin temperature difference is measured between the cooling and warming BAF modes, indicating that the thermal comfort zone of the human body can be enlarged with one piece of BAF clothing. We expect this work to present new insights for the design of personal thermal management textiles as well as a novel solution for the facile modification of available fabrics for both personal cooling and warming.
织物 / 个人热管理 / 双功能非对称织物 / 热传导 / 热辐射
Textiles / Personal thermal management / Bifunctional asymmetric fabric / Heat conduction / Radiative heat transfer
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