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| Numerical analysis on Joule heating and Turbulent flow field of melting channel in channel induction furnace |
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Received:December 07, 2021
Revised:December 15, 2021
Accepted:December 17, 2021
Published Online:July 04, 2022
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| DOI： |
| KeyWord:Channel induction furnace;Induction heating;Numerical Simulation;Channel interval;Aspect ratio |
| Author | Institution |
| LIU Li-Gang |
School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing |
| CAI Xin-Yu |
School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing |
| ZHAO Zhen |
School of Vehicle and Energy,Yanshan University |
| Li Ya-Qiong |
School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing |
| ZHANG Li-Feng |
State Key Laboratory of Metastable Materials Science and Technology,Yanshan University |
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| Abstract: |
| Taking the 1-ton double-loop channel induction furnace as the research object, a numerical simulation model were built by the ANSYS simulation software coupled k–? standard equation and the magnetohydrodynamic model (MHD). The flow field and temperature distribution in the melting channel were calculated. And the influence of different channel intervals, the aspect ratios on the power density of the channel, and the flow velocity on the channel top surface were discussed. The results indicated that the total Joule heat of the channel reached a maximum value of about 410 kJ when the channel intervals varied from 275 mm to 345 mm, and the power density reached 0.018 W/mm3. As the aspect ratio increased, the heat value gradually decreased. The flow field results indicated that the melt flow rate in the end channels was faster, and flows from end channel in a spiral flow to the furnace, the maximum outflow rate on the channel top surface reached 0.297 m/s. Metal melt in the furnace flew into the center channel under the action of gravity, and the downward melt was affected by the jets from the end channel to form a longitudinal vortex center on the upper part of the melting channel. Starting from top of the center channel, moving along the direction of the melting channel to end channel, the temperature of the melt gradually increased, reaching the maximum at the corners of the end channel, and the maximum temperature difference was 12.9 ℃. |
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