Open AccessMECHANISMS AND OPTIMIZATION OF COAL COMBUSTION
Author(s) -
Kyriacos Zygourakis
Publication year - 1998
Language(s) - English
Resource type - Reports
DOI - 10.2172/781762
Subject(s) - char , coal , thermogravimetric analysis , combustion , particle (ecology) , ignition system , coal combustion products , materials science , process engineering , visualization , chemical engineering , environmental science , nanotechnology , computer science , waste management , chemistry , engineering , geology , aerospace engineering , artificial intelligence , oceanography , organic chemistry
We report the development of a novel experimental technique that combines video microscopy and thermogravimetric analysis to optimize the detection of coal and char particle ignitions. This technique is particularly effective for detecting ignitions occurring in coal or char samples containing multiple particles, where other commonly used techniques fail. The new approach also allows for visualization of ignition mechanism. Devolatilized char particles appear to ignite heterogeneously, while coal particles may ignite homogeneously, heterogeneously or through a combination of both mechanisms