Studies presented in this paper concern wide issue of thermal comfort of protective clothing. The Computer Aided Design (CAD) software tools to analyze thermal insulation of multilayer textile assembly used in thermal protective clothing were applied. First, 3D geometry and morphology of a real textile assembly was modeled. In the designed model different scales of resolution were used for individual layers, ranging from a homogenized nonwoven fabrics model to mapping the geometry of yarns in woven fabrics model. Next, the finite volume method to estimate thermal insulation properties of this assembly, when exposed to heat radiation, was used. Finally, the simulation results were verified experimentally using method described in EN ISO 6942. On the basis of both simulation and experimental results obtained for the multilayer textile assembly, protective clothing parameters directly affecting the ability to protect against heat, were determined. Correlating simulated and experimental values of these parameters were obtained, which may indicate that applied software can be an effective tool in analyzing thermal properties of newly designed multilayer functional clothing.

本文提出的研究涉及防护服的热舒适性的广泛问题。应用了计算机辅助设计（CAD）软件工具来分析热防护服中使用的多层纺织品组件的隔热性能。首先，对真实纺织品组件的3D几何形状和形态进行了建模。在设计的模型中，不同的分辨率等级用于各个层，范围从均质的非织造织物模型到在织造织物模型中绘制纱线的几何形状。接下来，使用有限体积法估算暴露在热辐射中时该组件的隔热性能。最后，使用EN ISO 6942中所述的方法对仿真结果进行了实验验证。在仿真和实验结果的基础上，对多层纺织品组件进行了仿真，确定了直接影响防热能力的防护服参数。获得了这些参数的相关模拟值和实验值，这可能表明所应用的软件可以作为分析新设计的多层功能服装的热性能的有效工具。