Numerical Simulation of Combustion Characteristics and Heat Transfer Process in Thermal Storage Ladle Baking

Abstract To investigate the impact of various baking stages and air preheating temperatures on the baking process of a heat-storage ladle, this study employs ANSYS Fluent 2023R1 software to develop a multi-field coupled mathematical model. This model simulates gas flow, combustion, and heat transfer within the ladle. And the focus is to analyse the changing law of temperature distribution in the ladle. The results reveal that, under the specified numerical simulation boundary conditions, a localized low-temperature zone forms within the ladle during the small-fire and medium-fire baking stages. An increase in air preheating temperature by 200 K results in a linear increase in the inner wall surface temperature, averaging 13.3 K. In terms of energy efficiency, when the air preheating temperature reaches 1273 K, energy savings are estimated to be approximately 39.2%. The simulation findings presented in this study have both theoretical and practical implications for optimizing the ladle baking process.