Mathematical Modeling on Levitating Forces of Droplets with Electromagnetic Levitation

4th International Conference on Applied Materials and Manufacturing Technology

材料科学;机械制造

Zhang, G.F.^1,3 ; Wang, X.L.^1 ; Shi, B.H.^1 ; Zheng, W.^1 ; Yan, P.^1 ; Shi, Z.^1,3 ; Jiang, Q.^1 ; Yi, B.^1,2

Kunming University of Science and Technology, Kunming

650093, China^1

Hunan Zhongke Electric CO.LTD, Yueyang

414100, China^2

Yunnan Provincial Key Laboratory of Complex Iron Resources for Clean Metallurgy, Kunming

650093, China^3

关键词: Electromagnetic levitation;    Electromagnetic properties;    Heating process;    Levitating force;    Levitation force;    Metallurgical grade silicons (MGSi);    Refining process;    Solar grade silicons;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/423/1/012131/pdf
DOI  :  10.1088/1757-899X/423/1/012131

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This research focuses on studying levitating forces of droplets by utilizing a refining process known as electromagnetic levitation(EML). With the mathematical predictions, the levitating forces were described by a mathematical model in this article. Combined with theory analysis, the balancing phenomenon was also investigated in silicon-iron systems. The research found that the relationship between droplets position and levitation forces was linear. As EML system was a multi-induction, the levitating forces generation was affected by the properties of droplet, quality and size. The electromagnetic properties of the droplets were mainly the reasons for the levitation force to change from heating process before melting. EML droplet getting its melting point, electromagnetic properties of EML droplet were fixed due to the droplets absorbing latent heat. The results of this investigation will be used for vacuum electromagnetic levitation technology, and solar grade silicon samples will be prepared from relative inexpensive raw material, metallurgical grade silicon.