Clothing insulation and temperature, layer and mass of clothing under comfortable environmental conditions.
Clothing insulation and temperature, layer and mass of clothing under comfortable environmental conditions.
复制标题
DOI：
10.1186/1880-6805-32-11
复制
发表时间：
2013-07-01
影响因子：
3.1
通讯作者：
Choi J
中科院分区：
文献类型：
--
作者：
Kwon J;Choi J
本研究旨在探讨舒适环境条件下小气候温度与服装隔热性能的关系。共有20名受试者（13名女性，7名男性）参加了本研究。选择了四个环境温度：14°C（代表3月/4月），25°C（5月/6月），29°C（7月/8月）和23°C（9月/10月）。风速（0.14ms-1）和湿度（45%）保持恒定。在胸部（Tchest）和肩胛间区域（Tscapular）测量服装微气候温度。在左乳房中心上方30 mm处的最内层上测量最内层的衣服温度（Tinnerest）。受试者可以自由选择在每种环境条件下提供热舒适性的服装。我们发现了以下结果。1)除下衣层数（Llower）外，其余各因子在不同环境条件下均存在显著差异（P<0.05）。Tchest的范围为31.6至33.5°C，Tscapular为32.2至33.4°C。T最内的范围为28.6至32.0°C。上衣层数（Lupper）为1.1 ~ 3.2层，总衣重（Mtotal）为473 ~ 1659 g。Icl的范围为0.78 - 2.10 clo。2)事后分析表明，Tinner的分析产生了与Icl相同的结果。同样，Lupper的分析产生了与服装内的总层数（Ltotal）的分析相同的结果。3)气温（ta）与Tchest、Tscapular和Tinner呈正相关，与Icl、Mtotal、Lupper和Ltotal呈负相关。胸、肩胛和最深处随着ta的增加而增加。4)ICl与Tchest、Tinner呈负相关，与Mtotal、Lupper、Ltotal呈正相关。可以使用多元线性回归模型通过Mtotal、Lupper和Tscapular估计Icl。5)Lupper与Icl、Mtotal呈正相关，而Llower与Icl、Mtotal无相关性。受试者在3月至10月的环境舒适条件下几乎没有改变Llower。这表明Tchest、Mtotal和Lupper中的每一个都是预测Icl的因素。最里面也可能是一个更有影响力的因素比衣服的微气候温度。
This study was designed to investigate the relationship between the microclimate temperature and clothing insulation (Icl) under comfortable environmental conditions. In total, 20 subjects (13 women, 7 men) took part in this study. Four environmental temperatures were chosen: 14°C (to represent March/April), 25°C (May/June), 29°C (July/August), and 23°C (September/October). Wind speed (0.14ms-1) and humidity (45%) were held constant. Clothing microclimate temperatures were measured at the chest (Tchest) and on the interscapular region (Tscapular). Clothing temperature of the innermost layer (Tinnermost) was measured on this layer 30 mm above the centre of the left breast. Subjects were free to choose the clothing that offered them thermal comfort under each environmental condition. We found the following results. 1) All clothing factors except the number of lower clothing layers (Llower), showed differences between the different environmental conditions (P<0.05). The ranges of Tchest were 31.6 to 33.5°C and 32.2 to 33.4°C in Tscapular. The range of Tinnermost was 28.6 to 32.0°C. The range of the upper clothing layers (Lupper) and total clothing mass (Mtotal) was 1.1 to 3.2 layers and 473 to 1659 g respectively. The range of Icl was 0.78 to 2.10 clo. 2) Post hoc analyses showed that analysis of Tinnermost produced the same results as for that of Icl. Likewise, the analysis of Lupper produced the same result as the analysis of the number of total layers (Ltotal) within an outfit. 3) Air temperature (ta) had positive relationships with Tchest and Tscapular and with Tinnermost but had inverse correlations with Icl, Mtotal, Lupper and Ltotal. Tchest, Tscapular, and Tinnermost increased as ta rose. 4) Icl had inverse relationships with Tchest and Tinnermost, but positive relationships with Mtotal, Lupper and Ltotal. Icl could be estimated by Mtotal, Lupper, and Tscapular using a multivariate linear regression model. 5) Lupper had positive relationships with Icl and Mtotal, but Llower did not. Subjects hardly changed Llower under environmental comfort conditions between March and October. This indicates that each of the Tchest, Mtotal, and Lupper was a factor in predicting Icl. Tinnermost might also be a more influential factor than the clothing microclimate temperature.