Thermal Properties of Protective Clothing and Prediction of Physiological Strain

2009 ◽  
pp. 82-82-5 ◽  
Author(s):  
I Holmér
Keyword(s):  
Thermal Properties ◽  
Protective Clothing ◽  
Physiological Strain

Effect of Aerogel Incorporation in PCM-Containing Thermal Liner of Firefighting Garment

2018 ◽  
Vol 36 (3) ◽  
pp. 151-164 ◽  
Author(s):  
Abu Shaid ◽  
Lijing Wang ◽  
Stanley M. Fergusson ◽  
Rajiv Padhye
Keyword(s):  
Thermal Properties ◽  
Thermal Resistance ◽  
Heat Resistance ◽  
Phase Change ◽  
Phase Change Material ◽  
Protective Clothing ◽  
Ignition Time ◽  
Current Case ◽  
The Mean ◽  
Change Material

Phase change material (PCM) in firefighting garment enhances protection and comfort. Wearing a protective clothing containing PCM, while fighting the fire, is a direct risk to the wearer as most PCMs used are flammable. This article reports a solution by using aerogel. Thermal liner fabric was treated with PCM and/or aerogel and then their thermal properties were analyzed. It has been found that the mean ignition time of PCM-containing thermal liner is around 3.3 s in current case while this value significantly increased to 5.5 s when the combination of aerogel and PCM was used. Moreover, the weight of the liner fabric with aerogel decreased in comparison to PCM-containing liner. Aerogel also slowed down the spreading of flame in PCM-containing fabric. Aerogel–coated liner showed superior heat resistance and the combination of aerogel with PCM increased the thermal resistance of PCM-containing liner.

A Theoretical Investigation into Phase Change Clothing Benefits for Firefighters under Extreme Conditions

2009 ◽  
Vol 4 (3) ◽  
Author(s):  
Geoffry N. Mercer ◽  
Harvinder S Sidhu
Keyword(s):  
Mathematical Model ◽  
Thermal Properties ◽  
Phase Change ◽  
Protective Clothing ◽  
The Body ◽  
Extreme Conditions ◽  
Heat Absorption ◽  
Fire Exposure ◽  
Subcutaneous Layer ◽  
The Mathematical Model

We investigate the thermal performance of protective clothing that has an embedded phase change layer. Heat absorption due to phase change within the material is used to limit the thermal penetration of heat into the material and hence to the firefighter. The distribution of temperature within the fabric and skin during the exposure to an extreme firefighting situation is determined. To determine the protective nature of the clothing, we also include a model of the skin as three layers with differing thermal properties namely the epidermis, dermis and the subcutaneous layer. In our model, we have also incorporated the air gap between the garment and the body. The mathematical model is used to predict the duration of fire exposure during which the garment is able to protect the firefighter from getting first and second degree burns.

scholarly journals Thermal Properties of Special New Generation Personal Protective Clothing for Firefighters-Rescuers

2021 ◽  
Vol 1 (80) ◽  
pp. 45-67
Author(s):  
Marzena Rachwał ◽  
Małgorzata Majder-Łopatka ◽  
Tomasz Węsierski ◽  
Artur Ankowski ◽  
Magdalena Młynarczyk ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Thermal Insulation ◽  
Protective Clothing ◽  
Body Shape ◽  
Thermal Protection ◽  
Thermal Manikin ◽  
Protective Equipment ◽  
Everyday Work ◽  
New Generation ◽  
Full Body

Every day, firefighters put their health and life at risk by saving people and their property not only during fires, but by being always ready during all kinds of unfortunate events. Therefore, they need special personal protective equipment, including protective clothing. The purpose of the study was to compare thermal properties of new (PROTON and SYRIUSZ) and old (US-03) personal protective clothing for firefighters. Measurements of thermal insulation (total, effective and local) were carried out using a full body shape thermal manikin Newton consisting of 34 segments, in which temperature and heat flux were controlled independently. Results of the total thermal insulation of the entire clothing reveal differences between all three models. The lowest values were noticed for the model PROTON with light and shorter jacket and the highest values of thermal insulation for the new model SYRIUSZ, indicating that this model protect the user against heat most effectively. New models of personal protective clothing for firefighters should be recommended for use in everyday work, because they are characterized by better parameters than the previous type of protective clothing, both in terms of thermal protection and mobility.

Ice Slurry Ingestion and Physiological Strain During Work with Protective Clothing in Hot Conditions

2015 ◽  
Vol 47 ◽  
pp. 263
Author(s):  
Jason Ng ◽  
Elizabeth K. Aldrich ◽  
Jason C. Casey ◽  
Brendan J. Clair ◽  
Jonathan E. Wingo
Keyword(s):  
Protective Clothing ◽  
Ice Slurry ◽  
Physiological Strain
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