模拟实际工况下相变材料应用于矿山救援人员内衣对热体模型的冷却效果

Cooling Effect of Phase Change Materials Applied in Undergarments of Mine Rescuers in Simulated Utility Conditions on Thermal Manikin.

作者信息

Młynarczyk Magdalena, Bartkowiak Grażyna, Dąbrowska Anna

机构信息

Department of Ergonomics, Central Institute for Labour Protection-National Research Institute, Czerniakowska St. 16, 00-701 Warsaw, Poland.

Department of Personal Protective Equipment, Central Institute for Labour Protection-National Research Institute, Wierzbowa St. 48, 90-133 Łódź, Poland.

出版信息

Materials (Basel). 2022 Mar 8;15(6):1999. doi: 10.3390/ma15061999.

DOI:10.3390/ma15061999

PMID:35329451

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8951274/

Abstract

The cooling effect of new undergarments (T-shirt) with PCM was measured using heat flux on a thermal manikin according to four tests variants: in T-shirt without PCM, in T-shirt with PCM, in T-shirt without PCM and with outerwear, in T-shirt with PCM and with outerwear. The tests were done in the climatic chamber under controlled conditions: t = 32 °C, RH = 70% and V = 1 m/s. The cooling effect was confirmed by thermograms taken by thermal imaging cameras located on the front and back of the manikin. The results showed that in the case of using a T-shirt with PCM, the effect of heat absorption was observed during the first several dozen minutes of operation. The mean value of the heat flux density (ΔHc) received from the manikin was +15 W/m. In the case of using outerwear with a T-shirt with PCM, the mean value of the heat flux density (ΔHc) received from the manikin was +31.5 W/m.

摘要

根据四种测试变体，使用热通量在热人体模型上测量了带有相变材料（PCM）的新型内衣（T恤）的冷却效果：穿着无PCM的T恤、穿着有PCM的T恤、穿着无PCM的T恤并搭配外套、穿着有PCM的T恤并搭配外套。测试在气候室中在受控条件下进行：温度t = 32°C，相对湿度RH = 70%，风速V = 1 m/s。通过位于人体模型前后的热成像相机拍摄的热成像图证实了冷却效果。结果表明，在使用带有PCM的T恤的情况下，在运行的最初几十分钟内观察到了吸热效果。从人体模型接收的热通量密度（ΔHc）的平均值为+15 W/m²。在使用带有PCM的T恤并搭配外套的情况下，从人体模型接收的热通量密度（ΔHc）的平均值为+31.5 W/m²。（注：原文中“+15 W/m”表述有误，根据语境及单位换算逻辑，应为“+15 W/m²” ）