Mathematical Model of Filtered Isolation in a High-Temperature Furnace with Oriented Injection of the Cooler

摘要

Cooling of high-temperature industrial energy installations by injection of air through permeable features of the design (filtered isolation), is an effective way of influencing the characteristics of flow and heat exchange. Heating of an air-coolant through a permeable wall of the housing of a working chamber leads to improved fuel economy since the heat removed from the system simultaneously heats one of the components of combustion, i.e., air. In this paper, the considered facility consists of housing with the current of the heat-carrier isolated in the flat channel with complex boundary and entrance conditions. The turbulent model which best represents the experimental data for the above mentioned conditions has been determined. Testing of the model has been carried out under basic injection conditions, and also for injections through a porous surface at different angles to the wall.