Tobias Ginsberg, Dorothea Liebig, Michael Modigell, Klaus Hack, Safwan Yousif:
Simulation of a cement plant using thermochemical and flow simulation tools
In: Luis Pugjaner, Antonio Espuna (Eds.): Computer Aided Chemical Engineering, 361-366
As the cement rotary kiln is increasingly used for waste incineration,it features complex transport as well as chemical conditions. An approach of combining CFD and thermochemical equilibrium calculations has been applied in order to numerically model such a kiln. CFD calculations have been carried out including combustion as well as clinkerisation modelling in order to properly map heat and mass transfer. From the achieved results a flow sheet model of the kiln has been derived, picturing chemical processes within the kiln by means of a sequence of thermochemical equilibrium calculations. The flow sheet is capable of predicting incorporation of minor components into the clinker in good agreement with measurement results and clearly indicates formation of vaporisation-precipitation cycles.
Thermochemical process modelling, Cement manufacturing process, Rotary kiln