Very often in many metallurgical processes, porous metal charge is heated. Such charge can be coils of wire, bundles of bars, pipes or any profiles, as well as many other small elements heated on a mass scale. Determining the optimum heating conditions for this kind of charge requires knowledge of its thermal properties. This paper presents a methodology for calculating the thermal properties of porous charge based on an appropriate mathematical model of heat transfer.
This paper includes both experimental and modeling studies of nitrogen oxides abatement. The tests were carried out in a quartz combustion chamber using laboratory equipment that allows measuring all thermal and chemical parameters of the process. An experimental test rig was constructed to determine the effect of the following "primary methods" on NOx concentration reduction: air staging, afterburning and flue gas recirculation. The effect of simultaneous use of the primary methods on NOx reduction was also studied. An obligatory element of experimental studies is numerical modeling of combination processes.
