Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of compression on thermal protection of firefighting protective clothing under flame exposure
The applied compression on firefighting protective clothing affects the physical properties of the designed system, which in return the thermal protective performance (TPP) could be changed. A modified TPP tester was proposed to investigate the effect of compression on performance of protective clothing. Three stages of heat exchange during firefighting, including heat exposure, heat discharge, and skin cooling, were defined to examine contribution of each stage to skin burn injury. Additionally, the influence of compression on thermal protection was compared under planar and cylindrical configurations. The results demonstrated that the applied compression significantly exacerbated skin burn injuries, while the further increase of the pressure had no significant effect on skin burn injuries. The thermal energy during heat discharge ranged from 42.2% to 64.5% of the maximum thermal energy, highly depending on the fabric properties, the applied compression, the heat discharge time, and the body configuration. The decrease of thermal energy during skin cooling stage only composed a small portion of total absorbed thermal energy, which was increased by the applied compression. The conclusions from this study could contribute to understanding the principle of thermal protection in different firefighting stages for reducing skin burn injury.
Effect of compression on thermal protection of firefighting protective clothing under flame exposure
The applied compression on firefighting protective clothing affects the physical properties of the designed system, which in return the thermal protective performance (TPP) could be changed. A modified TPP tester was proposed to investigate the effect of compression on performance of protective clothing. Three stages of heat exchange during firefighting, including heat exposure, heat discharge, and skin cooling, were defined to examine contribution of each stage to skin burn injury. Additionally, the influence of compression on thermal protection was compared under planar and cylindrical configurations. The results demonstrated that the applied compression significantly exacerbated skin burn injuries, while the further increase of the pressure had no significant effect on skin burn injuries. The thermal energy during heat discharge ranged from 42.2% to 64.5% of the maximum thermal energy, highly depending on the fabric properties, the applied compression, the heat discharge time, and the body configuration. The decrease of thermal energy during skin cooling stage only composed a small portion of total absorbed thermal energy, which was increased by the applied compression. The conclusions from this study could contribute to understanding the principle of thermal protection in different firefighting stages for reducing skin burn injury.
Effect of compression on thermal protection of firefighting protective clothing under flame exposure
Su, Yun (Autor:in) / Yang, Jie (Autor:in) / Li, Rui (Autor:in) / Song, Guowen (Autor:in) / Li, Jun (Autor:in)
Fire and Materials ; 43 ; 802-810
01.11.2019
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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