As part of his doctoral research, he worked at the Institute of Thermodynamics on the experimental investigation and modeling of heat transfer and pressure drop in a two-phase flow in microchannels. With the ever-increasing performance of computers, air cooling of computer processors is reaching its limits. The heat flux densities that need to be dissipated across the small surface area of the main processor are far higher than those of electric hot plates. To maintain the required surface temperatures of below 70 degrees Celsius in the future, a two-phase cooling system is a viable option. A closed-loop cooling system – consisting of a micro-evaporator, condenser, and circulation pump – could be a promising cooling strategy for the future.
For the design and engineering of such micro-evaporators, fundamental knowledge of the thermo- and hydrodynamic mechanisms of phase transition in narrow flow channels is essential. Much of what applies to two-phase flow in pipelines cannot be applied to micro-scale applications. In his dissertation Dr.-Ing. Synowzik investigated these processes using several micro-evaporator prototypes. The successful doctoral candidate now works at Airbus in Hamburg as a fuel cell expert.
Prof. Dr. Olaf Strelow ( Department Mechanical Engineering, Microtechnology, Energy and Heat Engineering) from the University of Applied Sciences participated in the doctoral examination process as an examiner. Based on a cooperation agreement between the Giessen -Friedberg University of Applied Sciences and the Dresden University of Technology, particularly qualified graduates of the Degree Courses Energy Systems Engineering and Building Services Engineering have the opportunity to pursue a cooperative doctorate.