Experimental Research on Heating Transfer Improvement of Materials that Change Phase in Tunnels in Cold Regions

Table 1

The thermophysical properties of paraffin wax.

Span	Melting level (°C)	Density quantiles (m^3)	Heat conductivity (W/(m·K))	Concealed heating of phase transition (J/g)
Solid phase	53.6-62.6	940	0.4	138.4
Liquid phase		760	0.15