Heat Transfer Research in Blown-Through Non-Passable Heating Mains Channels. Part 1

Abstract. To increase the efficiency of operation heating networks located in non-passable channels, a schematic and structural solution regenerative-utilization heat use was previously proposed at same time it is shown that isdifficult to create an acceptable full-scale experimental installation or difficulty conducting passive experiment on existing mains channels. As alternative for performing research, virtual setup developed basis ANSYS software package, which has received wide recognition world. The initial results model verification showed study transfer aerodynamics blown-through using such promising. A been carried out based six-factor second-order rotatble plan containing 46 points hypersphere with six star points. It there no need randomize order repeating computational plan. Second-order regression equations have obtained calculating complex objective functions: required air pressure achieve given flow rate, intensity directly from pipes main, as well walls channel blown air. geometry channels typical standard sizes mains, length sections, temperature outside soil, rate taken influencing factors calculations. For equations, significant coefficients established transition dimensionless natural out. adequacy determined statistical estimation methods calculated values Fisher’s, Student’s other criteria.