MA – Thermal Analysis of a Power Module with Cryogenic Cooling

This master’s thesis aims to investigate the thermal design of a power module utilizing cryogenic cooling. The heat sink design using liquid nitrogen will be analysed and validated in an experiment.

Additionally, the test setup will be further optimized to enable the examination of the thermal impedance (Zth) of double-sided cooled power modules. To achieve this, a precise and reproducible measurement method for determining the volumetric flow rate of the cooling medium must be implemented. If possible, both differential and absolute pressure sensors should be integrated. The flow channel should be designed to allow for defined flow conditioning at the inlet.

The results will be replicated using thermal FEM simulations, and a thermal equivalent circuit model will be developed to support the thermal modelling of the module.

Bearbeiter: Niranjan Bharadwaj

Betreuer: Julius Zettelmeier (LEE), Lukas Farnbacher (IISB), Prof. Martin März

Verantwortlicher:  Prof. Dr.-Ing. Martin März