Analysis of a novel rational heating device by using permanent magnets

This paper presents results obtained in the designing of a heating device, which utilized eddy current, hysteresis and induction current induced by rotating permanent magnets. The structure will be mentioned in the paper firstly. Then, the finite element method is used for the thermal power analyses, regard less of the temperature variety in every components. In order to solve temperature problems, which is coupled with electromagnetic and fluid field, we have to Establish a coupled calculation method of temperature and thermal power. The experiment is also carried out after calculating. The results show that the device is very useful to heat liquid.