Thermo-Hydraulic Performance for an Electronic Cooling System Using Porous Material

Abstract

The present study numerically investigates the thermo-hydraulic characteristics of an electronic cooling system having porous blocks between the two heating parts. To model the porous media flow, the Darcy-Brinkman-Forchheimer model is used. The streamlines distribution, temperature field, Nusselt number and performance factor are studied in the following range of Reynolds number (Re) and Darcy number (Da): $$25 \le {\text{Re}} \le 200$$25≤Re≤200and $$10^{ - 5} \le {\text{Da}} \le 10^{ - 1}$$10-5≤Da≤10-1, respectively. It reveals that the maximum hot spot intensity decreases with the use of porous material. The average Nusselt number increases up to 40 to 50% for smaller Re, and 10 to 20% for higher Re with a higher value of Da. The performance factor is always higher for higher Darcy number (Da = 10–2 and 10–1) and greater than unity in the considered regime of flow.