Optimization of structural parameters of the porous sectional tract cooling

In the conditions of rapid development of power engineering due to the intensification of combustion processes and the search for new types of energy-intensive fuels, the problem of cooling of heat-loaded elements of various heat-power structures is quite acute. Increasingly, for the diversion of powerful heat fluxes have to turn to the structure of the cooling circuits with a porous filler. Along with the obvious advantages of the introduction of a porous structure in the cooling paths, there are also problems encountered when using them as the main elements of heat exchangers. The main disadvantage of using a porous frame to intensify the cooling of the heat-loaded impermeable shell is a serious increase in the power costs for the refrigerant filtration in the case of an increase in the length of the applied porous matrix. Therefore, we have to look for ways to modernize the heat exchange paths with porous filler in order to reduce pressure losses. One of the ways to intensify heat transfer in porous structures while reducing the cost of power to pump the refrigerant is the use of sectional porous heat exchange paths. This study describes the significant advantages and design of a porous sectional cooling path in comparison with a continuous porous heat exchange path, the problem of optimization of its geometric parameters and the method of its solution. The detailed results of the optimization of the unit section and the entire cooling path for the cases of anisotropic and isotropic structure of the porous matrix are presented.