Amila Chandra Kahawalage
Department of Process, Energy and Environmental Technology, Faculty of Technology, Natural Sciences and Maritime Sciences, University College of Southeast Norway, 3918, Porsgrunn, Norway
Morten C Melaaen
Department of Process, Energy and Environmental Technology, Faculty of Technology, Natural Sciences and Maritime Sciences, University College of Southeast Norway, 3918, Porsgrunn, Norway
Lars-André Tokheim
Department of Process, Energy and Environmental Technology, Faculty of Technology, Natural Sciences and Maritime Sciences, University College of Southeast Norway, 3918, Porsgrunn, Norway
Ladda ner artikel
http://dx.doi.org/10.3384/ecp1713883Ingår i: Proceedings of the 58th Conference on Simulation and Modelling (SIMS 58) Reykjavik, Iceland, September 25th – 27th, 2017
Linköping Electronic Conference Proceedings 138:11, s. 83-89
Publicerad: 2017-09-27
ISBN: 978-91-7685-417-4
ISSN: 1650-3686 (tryckt), 1650-3740 (online)
The calcium carbonate decomposition into calcium
oxide and carbon dioxide is a key process step in a
cement kiln. The reaction requires thermal energy input,
and pulverized coal is the fuel typically used for this
purpose in the cement industry. Coal can in many cases
be replaced by different types of alternative fuels, but
this may impact process conditions, emissions or
product quality. In this study, CFD simulations were
carried out to investigate the possibility to replace 50 %
of the coal by refuse derived fuel (RDF). The spatial
distribution of gas and particle temperatures and
concentrations were calculated, and the simulations
indicated that replacement of coal by RDF resulted in a
reduction of fuel burnout, lower gas temperatures and a
lower degree of calcination.
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