Institute of Refrigeration, Air-Conditioning, and Environmental Engineering

The Institut für Kälte-, Klima- und Umwelttechnik IKKU (Institute of Refrigeration, Air-Conditioning, and Environmental Engineering) was founded in 2006. Today, several teams carry out research headed by the professors:

  • Prof. Dr.-Ing. Michael Arnemann
  • Prof. Dr.-Ing. Marco Braun
  • Prof. Dr.-Ing. Jens Denecke
  • Prof. Dr.-Ing. Jan Hoinkis
  • Prof. Dr.-Ing. habil. Michael Kauffeld
  • Prof. Dr.-Ing. Maurice Kettner
  • Prof. Dr.-Ing. Matthias Stripf
  • Prof. Dr.-Ing. Matthäus Wollfarth

supported by currently 20 research assistants as well as students, who take part in research within the frame of their study projects or thesis research.

Subject areas

Research in the areas of ice slurry, minichannel heat exchanger, energy-efficiency in refrigeration and air conditioning, solar thermal process steam and cold water, adsorption, block-type thermal power station, and water treatment is carried out on about 800 m² in laboratory surface. The findings of this research are used to update teaching in the degree programs Mechanical Engineering, Mechatronics, and Sensor Technology. The specialization in Refrigeration, Air-Conditioning and Environmental Technology attracts 40 students each year.


The IKKU has very good contact to

International cooperation includes the refrigeration institutes of

  • TU Delft/Netherlands,
  • École des Mines in Paris/France,
  • NTNU and SINTEF in Trondheim/Norway,
  • KTH in Stockholm/Sweden,
  • University of Illinois/USA,
  • University of Maryland/USA
  • Purdue University/USA