Open AccessNumerical Simulation and Experimental Study on Blending Lignite from Bituminous Coal Boiler
Author(s) -
Qian Wang,
Kai Wu,
Zhuan Liu,
Yongjun Xia,
Xu-guang Zhou
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/310/3/032017
Subject(s) - pulverized coal fired boiler , combustion , turbulence , coke , bituminous coal , mechanics , boiler (water heating) , coal , heat transfer , materials science , nuclear engineering , engineering , chemistry , waste management , physics , organic chemistry
In this paper, the turbulent flow between gas-solid two-phase is used to calculate the turbulence model of RNG k- ε model. The trajectory field of pulverized coal particles is based on Lagrangian random particle orbit method. Radiation heat transfer was calculated by discrete propagation method; double parallel reaction model was adopted for the release of pulverized coal volatiles; gas phase mixed combustion was described by mixed fraction model; diffusion kinetic model was used for coke combustion; Lagrangian method was used for calculation of particle phase.