Till Pfeiffer M.Sc.

Condensation on Superamphiphobic Surfaces

Contact

work +49 6151 16-22271
fax +49 6151 16-22262

Work L2|06 210
Alarich-Weiss-Straße 10
64287 Darmstadt

Since 2020 Researcher at the Institute for Technical Thermodynamics, Technical University of Darmstadt
09/2019 – 01/2020 Gesellschaft für thermodynamische Prozesse, Entwicklung und Consulting mbH: Development Engineer
09/2018 – 03/2019 Master’s thesis: Preliminary investigations of capillary evaporation for the ISS experiment thermal platform
10/2016 – 05/2020 M.Sc. Mechanical and Process Engineering, TU Darmstadt
09/2015 – 06/2016 Study abroad at the École polytechnique fédérale de Lausanne
10/2011 – 10/2016 B.Sc. Mechanical and Process Engineering, TU Darmstadt

C03: Condensation of Water on Superamphiphobic Surfaces

Efficient and space-saving condensation of water vapour is important for many applications, including the extraction of fresh water from humid air and for high condensation rates in heat exchangers. The efficiency of commonly used condensers is limited by the slow discharge of already condensed liquid, which wets the condenser surface as a film.

The research focus of the project is the dropwise condensation on hydrophobic surfaces. Droplets flow off easily and effectively on sufficiently inclined hydrophobic surfaces and thus quickly expose condensation surface. However, the necessary coatings are either thermally insulating themselves or are not stable for a sufficiently long time.

The long-term goal of the project is to optimize the condensation rate and heat transport during condensation by a combination of hydrophobic coatings and substrate structuring. For this purpose, it is first of all important to better understand the basic processes during condensation, i.e. to be able to predict them quantitatively. The question is: How do hydrophobic coatings in combination with the substrate topography influence the growth, coalescence and the detachment / rolling of the condensing droplets?

CRC 1194/C03