Abstract
Exhaust flue gas temperature fired in aluminum industry furnaces can reach approximately 600–650 °C, with the thermal accounting for 40–50% of the total input energy. Therefore, the heat recovery of exhaust flue gas can be utilized in an adapted furnace to heat aluminum billets with the heat recovered from flue gas. This work aims to study the effectiveness of preheating billets with flue gas and assess a flawless design for a green preheating furnace. Therefore, a finite element heat treatment (FEHT) and turbulent fluid flow are coupled in a computational fluid dynamics (CFD) model to simulate billet logs in the furnace and the energy consumption and the heat treatment cycle time. The results show the persuasiveness of the novel strategy, with a decrease in energy loss and reducing the heat treatment time.
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The present work is supported by “the Fundamental Research Funds for the Central Universities” under the grant number N°2125012.
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Diop, M.A., Liu, X. & Feng, S. Aluminum Billets Heat Treatment Using Hot Flue Gas in Batch Homogenizing Preheating Furnace for Energy Efficiency and Cycle Time Reduction in Cast House. JOM 74, 2770–2782 (2022). https://doi.org/10.1007/s11837-022-05228-w
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DOI: https://doi.org/10.1007/s11837-022-05228-w