Man-portable personal cooling garment based on vacuum desiccant cooling

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• 作者：Yifan Yang^a ; Jill Stapleton^b ; Barbara Thiané ; Diagne^a ; Glen P. Kenny^b ; Christopher Q. Lan^a ; ^{Christopher.Lan@uottawa.ca}
• 关键词：Evaporative cooling ; Vacuum cooling ; Absorption ; Membrane ; Personal cooling garment
• 刊名：Applied Thermal Engineering
• 出版年：2012
• 期刊代码：8_13594311
• 类别：ce
• 出版时间：5 December, 2012
• 卷：47
• 期：Complete
• 页码：18-24
• 文件大小：798 K

摘要

A man-portable personal cooling garment based on the concept of vacuum desiccant cooling (VDC) was developed. It was demonstrated with cooling pads that a cooling capacity of 373.1聽W/m² could be achieved in an ambient environment of 37聽掳C. Tests with human subjects wearing prototype cooling garments consisting of 12 VDC pads with an overall weight of 3.4聽kg covering 0.4聽m² body surface indicate that the garment could maintain a core temperature substantially lower than the control when the workload was walking on a treadmill of 2%inclination at 3聽mph. The exercise was carried out in an environment of 40聽掳C and 50%relative humidity (RH) for 60聽min. Tests also showed that the VDC garment could effectively reduce the metabolic heat accumulation in body with subject wearing heavily insulated nuclear, biological and chemical (NBC) suit working in the heat and allow the participant to work safely for 60聽min, almost doubling the safe working time of the same participant when he wore NBC suit only.