Modeling and numerical simulation of heating process for roller hearth furnace with radiant tube heating

doi:10.13251/j.issn.0254-6051.2025.01.039

Abstract

Abstract: In order to study the heating characteristics of steel plate in the heating furnace during heating process, a high-precision computational fluid dynamics (CFD) model of the heating furnace was established by using FLUENT based on a roller hearth furnace with radiant tube heating. The heating process of the steel plate, heating temperature of 873.5 K and heating time of 135 min, was numerically simulated, and the simulation results were experimentally verified. The simulation results show that the temperature of the steel plate in heating stage rises rapidly, with a higher surface temperature, but the overall temperature of the steel plate does not show significant differences, indicating that the overall heat transfer of the steel plate is relatively uniform. The comparison between the CFD heating model results and the experimental results shows that the maximum error in the average temperature of the steel plate is only 5 K, with an error of less than 1%, indicating good consistency between the experiment and simulation.

Key words: roller hearth furnace with radiant tube heating, computational fluid dynamics (CFD) model, heating process, numerical simulation

CLC Number:

TG155.1

Kong Haoran, Pang Yuhua, Gao Qiang, Li He, Sun Qi. Modeling and numerical simulation of heating process for roller hearth furnace with radiant tube heating[J]. Heat Treatment of Metals, 2025, 50(1): 250-254.

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