Open AccessCFD Modelling Based on MP-PIC of Low Rank Pulverized Coal Pyrolysis in Pyrolysis Furnace
Author(s) -
Peng Li,
Chongen Zou,
Fang Dong,
Zhansheng Shi,
Zhian Ma
Publication year - 2020
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 - 10.1088/1755-1315/474/5/052027
Subject(s) - pyrolysis , pulverized coal fired boiler , coal , fluidized bed , throughput , materials science , heat transfer , particle (ecology) , waste management , nuclear engineering , chemical engineering , process engineering , thermodynamics , engineering , physics , telecommunications , oceanography , wireless , geology
The multi-phase particle in cell (MP-PIC) method through defining the concept of ‘parcel of particles’ has been applied to study the simulation of gas-solid fluidized bed. In this paper, in order to reveal the pyrolysis behaviors with low-rank pulverized coal, the three-dimensional gas-solids flow, heat transfer and chemical reaction in a pilot-scale descending pyrolysis furnace was simulated by adopting the MP-PIC method coupled with a distributed activation energy model (DAEM) reaction model. First, the MP-PIC method was validated by comparing the experimental data and simulation results of the furnace temperature at four different pyrolysis reaction regions in a vertical square descending pyrolysis furnace with the throughput of 1.2 t/h, respectively. Then this MP-PIC method was further extended for analyzing the effects of handling capacity with the throughput of 1.2, 1.5, 2.0, 2.5, 3.0 t/h.