Conference article

Modeling of Rotary Kilns and Application to Limestone Calcination

Uwe Küssel
RWTH Aachen University, Institute of Automatic Control, Germany

Dirk Abel
RWTH Aachen University, Institute of Automatic Control, Germany

Matthias Schumacher
Aixprocess, Process and Fluid Engineering, Germany

Martin Weng
Aixprocess, Process and Fluid Engineering, Germany

Download articlehttp://dx.doi.org/10.3384/ecp09430084

Published in: Proceedings of the 7th International Modelica Conference; Como; Italy; 20-22 September 2009

Linköping Electronic Conference Proceedings 43:96, s. 814-822

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Published: 2009-12-29

ISBN: 978-91-7393-513-5

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

This paper presents the one dimensional modeling of rotary kilns used for energy intensive production processes. Raw material is fed into an inclined rotating kiln and heated by counter current gas flow. Chemical reactions take place in the bed of raw material as well as in the gas phase. Heat and mass transfer between the bed and the gas phase are implemented. Also the heat transfer to the environment is taken into account. As a benchmark; the process of limestone calcination is chosen. Results are compared with computational fluid dynamic simulations.

Keywords

CaCO3; calcination; CFD comparison; kilns; limestone; rotary kilns; simulation

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