Wearable Bio-Inspired Pulsating Flow Cooling for Live Garments
Wearable Bio-Inspired Pulsating Flow Cooling for Live Garments
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DOI：
10.1109/i2mtc48687.2022.9806517
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发表时间：
2022-05
期刊：
影响因子：
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通讯作者：
P. Luk;Jiawei Tang
中科院分区：
文献类型：
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作者：
P. Luk;Jiawei Tang
在人类的经验中，众所周知，温度引起的加重，如中暑、热痉挛、脱水和冻伤，是最常见的健康危害之一。对于那些在长期和极端温度条件下生活或工作的人来说，病情的恶化可能会导致致命的后果。为了给人们提供舒适的，更重要的是宜居的温度，人们已经研究并实施了空调和集中供暖等温度控制系统。然而，在室外或受限环境中实施这些系统可能会很麻烦。此外，它们缺乏灵活性，如机动性和适应个人需求的温度。在这项研究中，提出了一种可穿戴的仿生脉动(间断)流冷却系统，其换热效率高于传统的定常(连续)流冷却系统。基于一种新型的冷却管阵列，采用了一种经验方法，避免了对所涉及的热流体动力学进行复杂的数值分析。建立了两种冷却系统的样机，并对其性能进行了比较。结果表明，所提出的系统不仅具有更好的散热效果，而且还具有潜在的灵活性，允许在“活的”服装中进行个性化的温度调节。
In human experience, it has been well known that temperature induced aggravations, such as heatstroke, heat cramps, dehydration, and frostbite, are among the most common health hazards. For those who live or work in prolonged and extreme temperature conditions, the aggravation may lead to fatal consequences. Temperature control systems such as air conditioning and central heating have been investigated and implemented to provide people a comfortable, and more importantly, livable temperature. However, these systems could be cumbersome to implement in an outdoor or confined environment. Moreover, they lack flexibility such mobility and adaptable temperature for individual needs. In this study, a wearable bio-inspired pulsating (discontinuous) flow cooling system with superior heat exchange efficiency to conventional steady (continuous) flow system, is proposed. Based on a novel array of the cooling tubes, an empirical approach is adopted to avoid complex numerical analysis of the thermal fluid dynamic involved. The prototypes of the two cooling flow systems are built and their performances compared. The results show that the proposed system not only demonstrates better cooling, but also offers potential flexibility that allows personalized temperature conditioning in a ‘live’ garment.