Prof. Jürg Alexander Schiffmann

Associate Professor


Research Area

Our work is focused on the design and experimental investigation of small scale turbomachinery for decentralized energy conversion. Typical applications range from small scale gas turbines, compressors for domestic heat pumps to high speed expanders for waste heat recovery using Organic Rankine Cycles.

Particular emphasis is given to the domestic and the transportation sector. Scaling laws for turbomachinery dictate increasingly small tip diameters and rising rotational speeds while lowering conversion powers. Hence, key research activities include thorough theoretical and experimental study of high-speed bearing technologies and their effect on dynamic rotor behavior. A particular emphasis is put on dynamic, gas lubricated bearing technologies. Furthermore the laboratory specializes in integrated mechanical design and optimization methodologies.


Jürg Alexander SCHIFFMANN
MC B2 255 (Bâtiment MC)
Rue de la Maladière 71b, CP 526
CH-2002 Neuchâtel 2