Naslov
CFD simulation of calcination process for cement production - model implementation and validation

Autori
Mikulčić, Hrvoje ; von Berg, Eberhard ; Vujanović, Milan ; Priesching, Peter ; Tatschl, Reinhard ; Duić, Neven

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of 9th European Conference on Industrial Furnaces and Boilers / - Estoril, 2011

Skup
9th European Conference on Industrial Furnaces and Boilers

Mjesto i datum
Estoril, Portugal, 26.04.2011. - 29.04.2011

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
calcination; CFD; cement industry; reaction mechanism; multiphase

Sažetak
Calcination is a thermo-chemical process, widely used in the cement industry, where limestone is converted by thermal decomposition into lime CaO and carbon dioxide CO2. The focus of this paper is on the implementation and validation of the endothermic calcination reaction mechanism of limestone in a commercial finite volume based CFD code. This code is used to simulate the turbulent flow field, the temperature field, concentrations of the reactants and products, as well as the interaction of particles with the gas phase, by solving the mathematical equations which govern these processes. For calcination, the effects of temperature, decomposition pressure, diffusion, and pore efficiency were taken into account. A simple three dimensional geometry of a pipe reactor was used for numerical simulations. To verify the accuracy of the modelling approach, the numerical predictions were compared with experimental data, yielding satisfying results and proper trends of physical parameters influencing the process.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Strojarstvo

POVEZANOST RADA