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DOI: 10.1177/0040517506053947 Effects of Moisture on the Thermal Protective Performance of Firefighter Protective Clothing in Low-level Radiant Heat ExposuresCenter for Research on Textile Protection and Comfort College of Textiles, North Carolina State University Raleigh, NC 27695-8301, USA Roger_Barker{at}ncsu.edu
Center for Research on Textile Protection and Comfort College of Textiles, North Carolina State University Raleigh, NC 27695-8301, USA This paper describes research on the effects of absorbed moisture on the thermal protective performance of the fire fighter turnout materials exposed to thermal assaults lower than flashover conditions. A thermal testing platform and sensor are used to measure thermal protective performance of turnout systems exposed to a sub flashover heat flux range 6.3 kw/m2 (0.15 cal/ cm2 s). The effects of moisture level on predicted second-degree burn injury for turnout systems having different moisture vapor permeability and total heat loss are discussed. Heat transfer analysis and experimental results show that, for selected test conditions, moisture negatively impacts protective performance most severely when the amount of added moisture is at a comparatively low level (1520% of turnout system weight).
Key Words: thermal protective performance heat in textiles moisture in textiles thermal test methods stored thermal energy
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