Numerical analysis of cement calciner fuel efficiency and pollutant emissions

Mikulčić, Hrvoje and Von Berg, Eberhard and Vujanović, Milan and Priesching, Peter and Tatschl, Reinhard and Duić, Neven (2013) Numerical analysis of cement calciner fuel efficiency and pollutant emissions. = Numerical analysis of cement calciner fuel efficiency and pollutant emissions. Clean Technologies and Environmental Policy, 15 (3). pp. 489-499. ISSN 1618-954X. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q3 (2013). Točan broj autora: 6.

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Abstract

Efficient mixing of pulverized fuel and limestone particles inside cement calciners is important due to the reason that the calcination process directly affects the final fuel consumption. The focus of this paper is on the numerical analysis of cement calciner's operating conditions and pollutant emissions. The paper analyzes the influence of different amounts of fuel, mass flow of the tertiary air and the adiabatic wall condition on the decomposition rate of limestone particles, burnout rate of coal particles, and pollutant emissions of a newly designed cement calciner. Numerical models of calcination process and pulverized coal combustion were developed and implemented into a commercial computational fluid dynamics code, which was then used for the analysis. This code was used to simulate turbulent flow field, interaction of particles with the gas phase, temperature field, and concentrations of the reactants and products, by solving the set of conservation equations for mass, momentum, and enthalpy that govern these processes. A three-dimensional geometry of a real industrial cement calciner was used for numerical simulations. The results gained by these numerical simulations can be used for the optimization of cement calciner's operating conditions, and for the reducing of its pollutant emissions.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Calciners; Computational Fluid Dynamics codes; Conservation equations; Fuel efficiency; Limestone particles; Pollutant emission; Pulverized coal combustion; Three dimensional geometry; Cements; Coal combustion; Computational fluid dynamics; Computer simulation; Numerical analysis; Numerical models; Pollution; Pulverized fuel; Calcination
Subjects: TECHNICAL SCIENCE
Divisions: 500 Department of Energy, Power Engineering and Environment > 510 Power Engineering and Energy Management Chair
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Quartiles: Q3 (2013)
Date Deposited: 08 Apr 2015 08:16
Last Modified: 17 Feb 2016 13:51
URI: http://repozitorij.fsb.hr/id/eprint/3534

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