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Kinetics of carbon combustion in packings of casting powder
Author(s) -
Schwerdtfeger Klaus,
Jablonka Angela
Publication year - 1993
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199300986
Subject(s) - combustion , isothermal process , casting , carbon fibers , kinetics , mass transfer , materials science , kinetic energy , thermodynamics , metallurgy , chemical engineering , chemistry , composite material , physics , engineering , quantum mechanics , composite number
The kinetics of carbon combustion in packings of casting flux have been investigated in isothermal laboratory experiments. At low temperature (300, 400°C) combustion is controlled by chemical reaction, and at high temperatures (600 to 800°C) by mass transfer within the powder packing and in the gaseous space above the packing. Inbetween, there is a range of mixed control. The paper intends to demonstrate how the relevant kinetic parameters can be deduced with rather simple experimental methods. These parameters can then be used in the modelling of the more complex combustion process occurring in real continuous casting.