Implementation of a Mathematical Modelling of a Rotary Cement Kilns

Serlya Aldina, Juwari Purwo Sutikno, Renanto Handogo

Abstract


Rotary cement kiln is the main equipment in the cement industry that has complex dynamic behavior, where any changes will affect the quality of the product and the consumed energy. A one-dimensional model of rotary kiln is needed to understand kiln’s behavior and improve kiln operating and design to achieve the optimum condition of product quality and energy required. In this study, the onedimensional mathematical model of a dry rotary cement kiln with pulverized coal combustion is developed. This model consists of a set of nonlinear ordinary differential equations and nonlinear algebraic equations that describe material and energy balance equations. The model has been solved numerically by using Matlab R2015a, and it has been validated by comparing the result with published experimental data. Based on the result, the steady-state simulation shows that the behavior of the model developed is appropriate with the results presented in the literature. It can be concluded that the model is accurate (error < 6%) to describe the profile of temperature and bed composition along with the kiln. It can be used to obtain a better understanding of kiln’s behavior and improve the kiln operating and design to achieve the optimum condition.

Keywords


Calcination; Clinker; One-Dimensional Model; Pulverized Coal; Rotary Cement Kiln

Full Text:

Full Text

References


Li SQ, Ma LB, Wan W, Yao Q. A Mathematical Model of Heat Transfer in a Rotary Kiln Thermo-Reactor. Chemical Engineering & Technology 2005 dec;28(12):1480–1489. http://doi.wiley.com/10.1002/ceat.200500241.

Csernyei C, Straatman AG. Numerical modeling of a rotary cement kiln with improvements to shell cooling. International Journal of Heat and Mass Transfer 2016 nov;102:610–621.

Mujumdar KS, Ranade VV. Simulation of rotary cement kilns using a one-dimensional model. Chemical Engineering Research and Design 2006 mar;84(3 A):165–177.

Spang HA. A dynamic model of a cement kiln. Automatica 1972 may;8(3):309–323.

Barr PV, Brimacombe JK, Watkinson AP. A heat-transfer model for the rotary kiln: Part I. pilot kiln trials. Metallurgical Transactions B 1989 jun;20(3):391–402.

Barr PV, Brimacombe JK, Watkinson AP. A heat-transfer model for the rotary kiln: Part II. Development of the cross-section model. Metallurgical Transactions B 1989 jun;20(3):403–419.

Mujumdar KS, Arora A, Ranade VV. Modeling of rotary cement kilns: Applications to reduction in energy consumption. Industrial and Engineering Chemistry Research 2006;45(7):2315–2330.

Darabi P. A mathematical model for cement kilns. PhD thesis, The University of British Columbia; 2007.

Tscheng SH, Watkinson AP. Convective heat transfer in a rotary kiln. The Canadian Journal of Chemical Engineering 1979 aug;57(4):433–443.

Levenspiel O. Chemical Reaction Engineering, 3rd Edition | Wiley. 3rd ed. New York, USA: John Wiley & Sons; 1998. https://www.wiley.com/en-id/Chemical+Reaction+Engineering,+3rd+Edition-p-9780471254249.

Samsudin MDM, Don MM, Ibrahim N, Kasmani RM, Zakaria Z, Kamarudin KS. Batch fermentation of bioethanol from the residues of elaeis guineensis: Optimisation using response surface methodology. Chemical Engineering Transactions 2017;56:1579–1584.

Wang Z, Wang TR, Yuan MZ, Wang H. Dynamic model for simulation and control of cement rotary kilns. Xitong Fangzhen Xuebao / Journal of System Simulation 2008;20(19):5131–5135.




DOI: http://dx.doi.org/10.12962/j20882033.v31i1.5548

Refbacks

  • There are currently no refbacks.


Creative Commons License

IPTEK Journal of Science and Technology by Lembaga Penelitian dan Pengabdian kepada Masyarakat, ITS is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at https://iptek.its.ac.id/index.php/jts.