Open AccessSolid fuel combustion processes modelling in the furnace in terms of the boiler K-50-14-250
Author(s) -
V. B. Prokhorov,
M. V. Fomenko,
N E Fomenko
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1683/4/042050
Subject(s) - boiler (water heating) , combustion , flue gas , fluent , computer simulation , nozzle , computational fluid dynamics , isothermal process , engineering , nuclear engineering , mechanical engineering , process engineering , waste management , chemistry , thermodynamics , simulation , organic chemistry , aerospace engineering , physics
The paper presents the numerical simulation results of furnace of the boiler K-50-14-250 for three operation modes with computational fluid dynamics software ANSYS Fluent. The boiler is located at industrial heating boiler house in Tashtagol town. The selection of models for the boiler furnace operation simulation is given. A study of simulation results independence on the mesh size was conducted, based on which a computational mesh was selected for further research. The numerical simulation results of three modes furnace operation were compared with the results of the field tests (flue gas temperature at the furnace outlet, combustible losses, heat absorption of the furnace heating surfaces, the nitrogen oxides concentration in the exhaust gases at excess air ratio α = 1.4). Besides, a slagging process numerical simulation of the furnace waterwalls performed. The numerical simulation results of the near nominal load furnace operation are compared with the results of physical isothermal modelling by matching the streamlines from the burners and air nozzles of the boiler. The paper summary is the verification of numerical models of the solid fuel combustion in the furnace, in terms of the boiler K-50-14-250.