In collaboration with various universities, the Faculty of Process Engineering provides the opportunity to pursue a doctorate in topics within the areas of process engineering and energy engineering.

Completed doctorates

PhD candidate
Alexandra Harless (M.Sc.)
Rapporteur – THNProf. Eberhard Franz
Rapporteur – HSU-HHProf. Michael Breuer
Consortial partnerHelmut Schmidt University Hamburg (HSU-HH)


From October 2012 to December 2016, Ms Alexandra Harless developed a method to optimize the energy-efficiency and cost-efficiency of waste gas heat exchangers, in collaboration with the company APROVIS Energy Systems GmbH.

Versuchsstand Rohrbündelwärmeübertrager mit Strukturrohren

PhD candidate

Abdellah Lemouedda (M.Sc.)

Rapporteur – THN

Prof. Eberhard Franz

Rapporteurs – FAU & HSU-HH

Prof. Antonio Delgado, Chair of Fluid Mechanics, FAU

Prof. Michael Breuer, Professor of Fluid Mechanics, HSU-HH

Collaborating university:

Friedrich-Alexander University of Erlangen-Nuremberg (FAU)

Helmut Schmidt University Hamburg (HSU-HH)


From August 2004 to February 2010, Mr Lemouedda carried out research into the numerical investigation and optimization of gas-liquid heat-exchangers. In his research, the term “optimization” is to be understood to mean “the targeted, systematic search for the best possible solution”.

PhD candidate


Alexander Raufeisen (M.Sc.)

Rapporteur – THN

Prof. Tilman Botsch

Rapporteur – University

Prof. Antonio Delgado, FAU

Prof. Michael Breuer, HSU-HH

Collaborating university

Friedrich-Alexander University of Erlangen-Nuremberg (FAU)

Helmut Schmidt University Hamburg (HSU-HH)