Add-on local sweating simulation system for a dry thermal manikin
Add-on local sweating simulation system for a dry thermal manikin
复制标题
用于干热人体模型的附加局部出汗模拟系统
DOI：
10.1080/23744731.2021.1911155
复制
发表时间：
2021
影响因子：
1.9
通讯作者：
Arsen Melikov
中科院分区：
文献类型：
--
作者：
Satoru Nagasawa;Tomonori Sakoi;Arsen Melikov
本研究发展一附加式局部发汗模拟系统，将现有的干式暖体假人升级为局部发汗暖体假人。使用类似于躺在带有通风床垫的床上的人的干式暖体假人研究了该系统的性能。该系统包括用于将水排放到扩散织物上的防水多孔中空管，以及电动齿轮泵、直流电源、继电器模块、微计算机和水容器。使用开发的系统，我们保持了一个循环稳定状态的汗液生成;此外，作为模拟汗液，管排放蒸馏水在覆盖有织物的人体模型部分的表面上的广泛区域。使用人体模型确定的局部蒸发热损失与使用潜热和排水率计算的结果大致一致，差异在5 W/m2以内。床微环境中的湿度通过附加汗液生成系统增加，并通过床垫通风降低。带有附加系统的干式暖体假人适用于评估出汗引起的局部冷却。该系统具有较高的重复性（6%的标准偏差），但排水率的准确性（30%）需要改进。
This study develops an add-on local sweating simulation system to upgrade existing dry thermal manikins to local and sweating thermal manikins. The performance of this system was studied using a dry thermal manikin resembling a human lying on a bed with a ventilated mattress. The system comprises water-repellent porous hollow tubes to discharge water onto a diffusive fabric, as well as a motorized gear pump, DC power supply, relay module, microcomputer, and water container. Using the developed system, we maintained a cyclic steady-state for sweat generation; further, as simulated sweat, the tubes discharge distilled water over a wide area on the surface of a manikin segment covered with fabric. The local evaporative heat loss determined using the manikin roughly agreed with that calculated using the latent heat and water discharge rate, with a difference within 5 W/m2. The humidity in the bed microenvironment was increased via the add-on sweat generation system and decreased via mattress ventilation. A dry thermal manikin with an add-on system is suitable for evaluating local cooling induced by sweating. The system has high repeatability (6% standard deviation); however, the accuracy of the water discharge rate (30%) needs improvement.