The urgency of the given problem and growing attention it relate to the work of existing power plants, the creation of new combustion chambers, with increase in quantity of the polluting substances entering in atmosphere. Investigated object in the given work the combustion chamber of copper RK 39. The block 300 МВТ, steam capacity 475 T/hour is chosen. The copper is established on Aqsw power stations (Kazakhstan). The calculation area for carrying out computational experiments and creation of a database for modelling  with useful programme in complex PREPROZ. In created files geometrical data of investigated process, initial and boundary conditions for process modelling heat-and-mass transfer in reacting streams contain