Research Article
Influence of Initial Moisture Content on Heat and Moisture Transfer in Firefighters’ Protective Clothing
Table 1
Thermophysical and geometrical properties of fabric [
17,
21,
22].
| | Property | Outer shell | Moisture barrier | Thermal barrier | Comfort layer |
| | Thickness of the material [m] | 0.31 × 10−3 | 0.5 × 10−3 | 1.1 × 10−3 | 0.29 × 10−3 |
| | Material of composition | XDB602 | Aramid fabric coated with PTFE film | Aramid insulation | Cotton shirting |
| | Density [kg m−3] | 677.42 | 210.00 | 77.27 | 413.79 |
| | Thermal conductivity [W m−1 K−1] | 0.075 | 0.052 | 0.05 | 0.053 |
| | Volume fraction | 0.334 | 0.186 | 0.115 | 0.15 |
| | Fibre curl | 1.5 | 1.25 | 1 | 1 |
| | Diffusivity of the gas phase in the fabric [m2 sec−1] | 0 × 10−14 | 0 × 10−14 | 0 × 10−14 | 0 × 10−14 |
| | Fiber radius [m] | 1.6 × 10−5 | 1.6 × 10−5 | 1.6 × 10−5 | 1.6 × 10−5 |
| | Darcian permeability coefficient, m2 [m2] | 10 × 10−16 | 10 × 10−16 | 10 × 10−16 | 10 × 10−16 |
| | Saturation of the fabric | 0.1 | 0.1 | 0.1 | 0.1 |
| | Proportional constant of liquid water absorption [kg m−3] | 0 × 10−4 | 0 × 10−4 | 0 × 10−4 | 0 × 10−4 |
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