Abstract
Investigation was made of the heat-transfer effect on the motions of cold bubbles and molten metal in a bottom-blown bath. The heat transfer between the bubbles and the molten metal finished at an axial position near the nozzle exit. The bubble and liquid-flow characteristics measured above this position were in good agreement with those in a bath agitated by isothermal gas injection of the same mass flow rate. A simplified mathematical model was proposed to describe the two characteristics. The experimental results of gas holdup and mean liquid-flow velocity were satisfactorily predicted by it. The accuracy of the prediction became higher as the distance from the nozzle exit increased, due to disintegration of bubbles.
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Iguchi, M., Tokunaga, H. Molten wood’s-metal flow in a cylindrical bath agitated by cold bottom-gas injection. Metall Mater Trans B 33, 695–702 (2002). https://doi.org/10.1007/s11663-002-0022-5
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DOI: https://doi.org/10.1007/s11663-002-0022-5