Confirmation of the generalized criterial equation of convective heat exchange for porousstructures experimental way

The article is devoted to the consideration of convective heat transfer in porous structures in order to confirm the generalized criterial equation of interstitial convective heat transfer, which was recommended for preliminary heat exchange calculations based on the analysis and synthesis of numerous experimental data. There are three mechanisms for the propagation of heat. This conduction, thermal radiation and convection, which is possible only in a fluid environment and is always accompanied by conduction. Convection plays a very important role in various heat exchangers, which are commonly used for heat removal whencooling heat-stressed systems and components in various designs in all sectors of the economy. Distinguish between natural and forced convection. For both cases, there are criterion equations for determining with their help the average coefficient of convective heat transfer, depending on the physical properties of the cooling medium, the configuration and size of the heat exchange surface and on the conditions around the cooling medium. It has been substantiated that one of the most promising and effective ways to intensify heat and mass transfer processes is the use of porous metals in a variety of heat exchange devices. The results of a successful attempt to confirm the above criterial analytical dependence for porous structures are given. In the course of the work, calculated and experimental data were obtained, which showed good consistency, which finally confirmed the possibility of using the generalized criterial equation as applied to existing brands of porous mesh materials.