نوع مقاله : مقاله پژوهشی
عنوان مقاله English
نویسندگان English
Rotary kilns are key equipment in the cement industry. These kilns consist of a cylindrical shell that rotates around its longitudinal axis. The raw materials are exposed to hot gases and gradually undergo the calcination process. Due to the high temperatures and limited access in the kiln, measuring the parameters that affect its performance is challenging. Therefore, numerical simulation can serve as an efficient tool for analyzing the thermal and combustion behavior of the kiln.
In this study, the combustion process and heat transfer in a cement rotary kiln were simulated using three-dimensional computational fluid dynamics with ANSYS Fluent 2025. To solve the governing equations, the standard k-ε turbulence model, the non-premixed combustion model, and the discrete ordinates radiation model were employed. To assess the accuracy of the simulation, the results were compared with experimental data. The main results include temperature distribution, velocity field, concentration of combustion species, and flame patterns the analysis of which can provide a suitable basis for improving the kiln design and performance.
کلیدواژهها English