Experimental Examination of the Heat Transfer in a High Power Eddy Current Brake with a Magneto-isotropic Material Structure

In this article, the heat transfer of a magneto-isotropic material structure in a water-cooled high-power eddy current brake is investigated. The aim of this work is to evaluate the maximum possible heat density and Nusselt correlation of the given structure. Due to the complex vaporization mechanisms, the heat transfer coefficient and the thermal limits of the material structure are determined experimentally. Therefore a experimental setup was designed and constructed. This setup includes a small cut-out of the magneto-isotropic material structure from the real eddy current brake. The results are useful for an thermal optimized design of an eddy current brake.