Experimental analysis of heat transfer in porous medium with different material- Review
Ashwin M.Nandeshwar, Narendra N.Wadaskar
HeatTransfer, PorousMedia, Nusselt Number
An experimental study to evaluate the dynamics of forced convection heat transfer in a thermally isolated column filled with porous medium has been carried out. The behaviour of two porous media with different grain sizes and specific surfaces has been observed. The experimental data have been compared with an analytical Solution for one-dimensional heat transport for local non thermal equilibrium condition. The interpretation of the experimental data shows that the heterogeneity of the porous medium affects heat transport dynamics, causing a channelling effect which has consequences on thermal dispersion phenomena and heat transfer between fluid and solid phases, limiting the capacity to store or dissipate heat in the porous medium.