Influence of oxygen on heat transfer by convection in the experimental device

The aim of this paper is to analyze the influence of flue gas flow on the heat exchange in experimental devices. The authors focused on the analysis of combustion gases produced by combustion of natural gas at various enrichment of the oxidizing agent by means of oxygen. By analyzing the flue gas flow, it is possible to detect changes in velocity fields at a given concentration of oxygen in the oxidizing agent. In the flow analysis, a mathematical model of an experimental device was developed in the ANSYS program, which served to visualize the change of velocity fields for the whirling burner mouth.