Requirement-based implementation and simulation of a test bench for the investigation of liquid-cooled coils

The performed thesis describes a prediction model to determine the main parameters of a test-bench, built for the examination of the heat dissipation in a hollow copper coil by means of two different cooling techniques: direct liquid cooling and phase-change cooling. Beside the description of the test-bench and of the equipment in the laboratory, a detailed description of the physics and dynamics of the two processes will be given, with a summary of the state of the art of other cooling methods developed for electrical machines during the last decades. The main equations used for the computational analysis in the MATLAB/Simulink environment to forecast the behavior of the fundamental parameters that need to be taken into consideration for such topic in a worst-case scenario, like the heat transfer coefficient (HTC) and others, will be deeply discussed as well. Then, from all the data collected, it will be possible to define the boundary conditions to make up a strong and stable strategy for the best achievable cooling condition. The target is to reach the most suitable description of what might happen and to get as close as possible to the further measurements.