Related Experiment Video
Updated: Sep 29, 2025

Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation
Published on: May 2, 2016
Cooling Effect of Phase Change Materials Applied in Undergarments of Mine Rescuers in Simulated Utility Conditions on
Magdalena Młynarczyk1, Grażyna Bartkowiak2, Anna Dąbrowska2
1Department of Ergonomics, Central Institute for Labour Protection-National Research Institute, Czerniakowska St. 16, 00-701 Warsaw, Poland.
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: ta = 32 °C, RH = 70% and Va = 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/m2. 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/m2.
Related Concept Videos
Decreased Body Temperature
Mechanism of heat transfer
Thermal Stress
Masonry in Cold and Hot Weather Conditions
Other key practices include keeping masonry units...
Heating and Cooling Curves
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
Phase Changes
A substance melts or freezes at a temperature called its melting point and boils or condenses at its boiling point. These temperatures depend on pressure. High pressure favors the denser form of the substance, so typically, high pressure...

