Designing clothing for protection against thermal effects and heat retention
DOI:
https://doi.org/10.26906/SUNZ.2025.1.169-171Keywords:
thermal insulation, protective clothing, modelling, glass fibreAbstract
A model of heat transfer through several layers of textile and protective material is developed based
on the fundamental relations of thermal conductivity. The presence of air gaps between individual layers of materials is taken into
account. The temperature changes of individual material layers were obtained, which allows us to determine the range of textile
materials and protective layers depending on the thermal insulation tasks. The developed methodology makes it possible to design
clothing to protect people from external thermal influences and prevent negative changes in the thermal regime of the human body.
Dependencies on the temperature change of the outer surface of the protective material over time were obtained. This makes it
possible to determine the time intervals during which protective clothing performs its functions at the required level. The research
results were verified. A real fibreglass-based material was examined using a standard thermal imager in real-world conditions. It
is shown that at least at a temperature gradient of 20 K, the material completely isolates a person from the influence of the external
environment. It is noted that glass fibre particles are harmful to humans, so in the processes of manufacturing and operation, glass
fibre should be isolated by means of a decorative coating.
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