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Table 1 Thermal and electrical property values assigned to different layers of skin.

From: Transport lattice models of heat transport in skin with spatially heterogeneous, temperature-dependent perfusion

Air
t _a	thickness	500 μ m
N _a	number of lattice elements	100
ℓ	lattice node spacing	5 μ m
k _a	thermal conductivity	0.0263 Wm^-1 °C^-1
ρ _a	density	1.3 kg m^-3
c _a	specific heat	1004 Jkg^-1 °C^-1
Epidermis
t _e	thickness	80 μ m	[52]
N _e	lattice elements	80
ℓ	lattice node spacing	1 μ m
σ _e	electrical conductivity	8.01 Sm^-1	[70]
ε _e	relative permittivity	31.3	[70]
η _e	penetration depth	3.8 mm	[70]
λ _e	wavelength	5.2 mm	[70]
k _e	thermal conductivity	0.23 Wm^-1 °C^-1	[52]
ρ _e	density	1200 kg m^-3	[52]
c _e	specific heat	3590 Jkg^-1 °C^-1	[52]
ω _e	perfusion rate	0 m³ s^-1 m^-3 tissue	[52]
Dermis
t _d	thickness	2000 μ m	[52]
N _d	lattice elements	100
ℓ	lattice node spacing	20 μ m
σ _d	electrical conductivity	8.01 Sm^-1	[70]
ε _d	relative permittivity	31.3	[70]
η _d	penetration depth	3.8 mm	[70]
λ _d	wavelength	5.2 mm	[70]
k _d	thermal conductivity	0.45 Wm^-1 °C^-1	[52]
ρ _d	density	1200 kg m^-3	[52]
c _d	specific heat	3300 Jkg^-1 °C^-1	[52]
ω _d	perfusion rate	1.25 × l0^-3 m³ s^-1 m^-3 tissue	[52]
Subcutaneous Tissue
t _s	thickness	18000 μ m	[52]
N _s	lattice elements	100
ℓ	lattice node spacing	180 μ m
σ _f	electrical conductivity	0.585 Sm^-1	[70]
ε _f	relative permittivity	4.60	[70]
η _f	penetration depth	19.6 mm	[70]
λ _f	wavelength	13.9 mm	[70]
k _s	thermal conductivity	0.19 Wm^-1 °C^-1	[52]
ρ _s	density	1000 kg m^-3	[52]
c _s	specific heat	2675 Jkg^-1 °C^-1	[52]
ω _s	perfusion rate	1.25 × 10^-3 m³ s^-1 m^-3 tissue	[52]
Blood
c _b	specific heat	3770 Jkg^-1 °C^-1	[52]
ρ _b	density	1060 kg m^-3	[52]

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ISSN: 1475-925X

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