Application of pulse heating method for various thermal studies

Experimental study of local thermal non-equilibrium phenomena during phase change in porous media

“…Tetracosane (99% pure) is a PCM used in this study. It has a melting temperature of 49.5°C, the thermal conductivity of the liquid phase is 0.17 W/m K, the thermal conductivity of the solid phase is 0.24 W/m K [15,16], the density at the melting temperature is 796 kg/m 3 [17], and the latent heat is 255 kJ/kg [17]. Using a guarded hot plate technique and steady state condition, the equivalent thermal conductivity of the PCM-saturated porous medium is measured at 0.55 W/m K, details are in Nnanna [18].…”

“…Using Eq. (15) and an iterative procedure, these three values are computed as s t ¼ 60:1 s, s q ¼ 47:3 s, and L ¼ 208:9 kJ/kg. Fig.…”