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Table 1

Summary of both PTFE and iron characteristics. The last column shows the relative uncertainty found in the literature (or chosen in the case of the width) for the iron case. They will be applied as well on the PTFE.

PTFE Iron Uncertainty (%)
Thickness (m): e 10 × 10−3 20 × 10−3 0.5
Thermal conductivity (W m−1 K−1): λ 0.25 79.5 0.6
Massive thermal capacity (J kg−1 K−1): Cρ 1300 444 1.2
Density (kg m−3): ρ 2200 7874 0.2
Thermal diffusivity (m2 s−1): α 8.7 × 10−8 2.27 × 10−5
Diffusion thermal time (s): tD 287 4.4
Biot number (for h = 100), [ϕ]: Bi 4 0.025

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