Open AccessCoal combustion models: An overview
Author(s) -
Garikai T. Marangwanda,
Daniel M. Madyira,
T. O. Babarinde
Publication year - 2019
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 - 10.1088/1742-6596/1378/3/032070
Subject(s) - char , combustion , coal , coal combustion products , process engineering , computational fluid dynamics , process (computing) , fossil fuel , environmental science , particle (ecology) , waste management , computer science , engineering , chemistry , aerospace engineering , geology , oceanography , organic chemistry , operating system
Computational Fluid Dynamics has been used for optimisation of industrial applications with some level of success. The modest accuracy provided by some of the combustion models in use has left some room for research and improvement. Coal is presented as a fuel with complex chemical properties due to its fossil fuel nature. The devolatilization process of coal is investigated with special attention to the best models that can handle heavy and light volatiles found in coal. The heterogenous char combustion is also presented paying attention to the nature of the char particle whilst it is in the process of combustion. The other processes such as drying, homogenous volatile combustion, radiation models, particle tracking models and turbulent models are investigated in a general manner as they rarely vary with the type of fuel being investigated. A summary of the industrial applications that have successfully utilised the CFD models for optimisation of coal combustion are presented thus helping in drawing the final conclusion.