Behavior of helical coil with water cooling channel and temperature dependent conductivity of copper winding used for MFH purpose

International Conference on the Sustainable Energy and Environmental Development

生态环境科学

Gas, P.^1

AGH University of Science and Technology, Department of Electrical and Power Engineering, Mickiewicza Av. 30, Krakow

30-059, Poland^1

关键词: Cylindrical coordinate systems;    Heat transfer equations;    Helmholtz-type equations;    Magnetic fluid hyperthermia;    Magnetic vector potentials;    Nonlinear conductivity;    Resistance and inductance;    Temperature-dependent conductivity;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/214/1/012124/pdf
DOI  :  10.1088/1755-1315/214/1/012124

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The following paper presents coupling of electromagnetic and thermal modelling of water-cooled inductors for magnetic fluid hyperthermia (MFH) purpose. In numerical analysis a nonlinear conductivity of the copper coil winding and turbulent water flow inside the cooling channel have been taken into account. The induced current in the coil windings generates heat, which affects the temperature dependent conductivity of copper. As shown by the conducted simulations, this influences resulted magnetic field and temperature distribution inside the inductor as well as actual resistance and inductance of the coil. Interestingly, in model without circulating water inside copper winding, these quantities are characterized by the long-term transient state that virtually disappears under the water cooling condition. For simplicitythe described problem, including coupling of the Helmholtz-type equation for magnetic vector potential and classical heat transfer equation based on energy balance, has been solved for an axis-symmetric model in a cylindrical coordinate system using finite element method.