scholarly journals Mechanism of Single Coal Particle Ignition under Microgravity Condition.

1997 ◽  
Vol 30 (1) ◽  
pp. 146-153 ◽  
Author(s):  
Hassan Katalambula ◽  
Jun-ichiro Hayashi ◽  
Tadatoshi Chiba ◽  
Koji Ikeda ◽  
Kunihiro Kitano
Keyword(s):  
Coal Particle ◽  
Microgravity Condition ◽  
Particle Ignition

Coal Particle Ignition and Devolatilization

1985 ◽  
pp. 37-75 ◽  
Author(s):  
L. Douglas Smoot ◽  
Philip J. Smith
Keyword(s):  
Coal Particle ◽  
Particle Ignition

Numerical study of coal particle ignition in air and oxy-atmosphere

2019 ◽  
Vol 37 (3) ◽  
pp. 2867-2874 ◽  
Author(s):  
Sima Farazi ◽  
Antonio Attili ◽  
Seongwon Kang ◽  
Heinz Pitsch
Keyword(s):  
Coal Particle ◽  
Numerical Study ◽  
Particle Ignition

A flamelet/progress variable approach for modeling coal particle ignition

Fuel ◽  
2017 ◽  
Vol 201 ◽  
pp. 29-38 ◽  
Author(s):  
M. Vascellari ◽  
G.L. Tufano ◽  
O.T. Stein ◽  
A. Kronenburg ◽  
A.M. Kempf ◽  
...  
Keyword(s):  
Coal Particle ◽  
Progress Variable ◽  
Particle Ignition ◽  
Variable Approach

Studies on Coal Ignition and Combustion Characteristics

2017 ◽  
Author(s):  
Xue Chen ◽  
MingYan Gu ◽  
XianHui He ◽  
Dan Yan ◽  
Jimin Wang ◽  
...  
Keyword(s):  
Oxygen Concentration ◽  
Coal Particle ◽  
Gas Flow ◽  
Ignition Time ◽  
Particle Diameter ◽  
Combustion Characteristics ◽  
Gas Temperature ◽  
Flow Temperature ◽  
Particle Ignition ◽  
Coal Particles

A 2-D numerical model of flow, heat transfer, and combustion of coal particles in a laminar gas flow at O2/CO2 atmosphere was developed based on the Eulerian-Lagrangian methodology. The gas-phase combustion was modeled using the GRI-Mech 3.0. The motion of coal particles was simulated using a trajectory model. The model was employed to study the coal ignition time, temperature and mass changes. The effects of particle diameter, the flow temperature and oxygen concentration on the ignition time and the combustion characteristics of coal particles were also investigated. The results obtained show that smaller size particle experiences a shorter ignition time with a higher coal temperature. A higher gas temperature leads to a shorter coal particle ignition time; increasing the flow temperature the difference in the ignition time of different sized coal particles decreases. The coal particle ignition time is decreased when the oxygen concentration is increased.

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