March 6 - 8, 2017 | Berlin
LEADING ENGINEERING SIMULATION CONFERENCE
Combined numerical approach for the energy efficiency analysis of a ceramic kiln under actual operating conditions
The paper focuses on the combined 0D/1D and CFD approach for the numerical analysis of an entire industrial ceramic kiln. The kiln is simulated under actual operating conditions in order to improve the energy efficiency and thus the fuel consumption as well as the pollutant emissions. A lumped and distributed parameter model of the entire system is constructed to simulate the performance of the kiln under actual operating conditions. The heat transfer coefficient for the 0D/1D model are determined by means of the CFD analysis of the considered kiln modules. The lumped and distributed parameter model is constructed using the LMS-IMAGINE Lab AMESim code and the CFD analysis is carried out by means of STAR-CCM+® code. The model of the whole kiln is able to predict accurately the temperature distribution along the different modules and the operation of the many natural gas burners employed to provide the required thermal power. Furthermore, the temperature of the tiles is also simulated so that the quality of the final product can be addressed by the modelling. Numerical results are validated against experimental measurements carried out on a real ceramic kiln during regular production operations and a good agreement between calculations and experiments is obtained.