Article | Proceedings of the 58th Conference on Simulation and Modelling (SIMS 58) Reykjavik, Iceland, September 25th ‚Äď 27th, 2017 | Numerical modeling of the calcination process in a cement kiln system
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Title:
Numerical modeling of the calcination process in a cement kiln system
Author:
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
DOI:
10.3384/ecp1713883
Download:
Full text (pdf)
Year:
2017
Conference:
Proceedings of the 58th Conference on Simulation and Modelling (SIMS 58) Reykjavik, Iceland, September 25th ‚Äď 27th, 2017
Issue:
138
Article no.:
011
Pages:
83-89
No. of pages:
7
Publication type:
Abstract and Fulltext
Published:
2017-09-27
ISBN:
978-91-7685-417-4
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


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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.

Keywords: precalciner, calcination, refuse derived fuel, computational fluid dynamics

Proceedings of the 58th Conference on Simulation and Modelling (SIMS 58) Reykjavik, Iceland, September 25th ‚Äď 27th, 2017

Author:
Amila Chandra Kahawalage, Morten C Melaaen, Lars-André Tokheim
Title:
Numerical modeling of the calcination process in a cement kiln system
DOI:
http://dx.doi.org/10.3384/ecp1713883
References:
No references available

Proceedings of the 58th Conference on Simulation and Modelling (SIMS 58) Reykjavik, Iceland, September 25th ‚Äď 27th, 2017

Author:
Amila Chandra Kahawalage, Morten C Melaaen, Lars-André Tokheim
Title:
Numerical modeling of the calcination process in a cement kiln system
DOI:
http://dx.doi.org/10.3384/ecp1713883
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Citations:
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Last updated: 2017-02-21