Heat Exchange (HEX)

The research group Heat Exchange (HEX) is dealing with heat transfer on microstructured surfaces and within microstructure devices. Single phase and two-phase systems are under research. Amongst others, the group focuses on fundamental investigations for pre-calculation, design, construction and optimization of microstructures for highly efficient heat transfer (fluidically driven, electrically heated or cooled) as well as onto the effects of microstructures in different materials to rarefied gases (with Kn> 0.1). Phase transition processes like evaporation and condensation are investigated systematically. Additionally to microstructure heat exchangers for fluid-fluid heat transfer, electrically heated and cooled devices, the effects of microstructures in different materials to rarefied gases (with Kn> 0.1) are currently under research. Influences of the surface quality (roughness etc.) are systematically examined. Additionally, alternative methods for energy application are considered. Influences of materials and surface modifications (fouling, surface layers) are also characterized. All developments are characterized with a close look to applications, using specially designed experimental facilities. Teaching at Universities is completing the portfolio of the HEX research group.

Current projects:

• DFG-Project
  Anwendung mikrostrukturierter Verdampfer für die Herstellung dampfgetragener submikroner organischer Partikel

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