Small-scale turbomachinery have a major role to play towards a more sustainable energy landscape. Typical applications are in refrigeration cycles, organic rankine cycles and for fuel cells. We are interested in understanding on how design guidelines are influenced by scale and how to mitigate losses on radial compressors and turbines related to downscaling. Experimental investigations on small-scale machines allow us to validate and calibrate our novel reduced order models.

Recent Journal Publications

Multi-objective optimization of turbo-ORC systems for waste heat recovery on passenger car engines

K. Rosset; V. Mounier; E. Guenat; J. Schiffmann 

Energy. 2018-06-27. Vol. 159, p. 751-765. DOI : 10.1016/j.energy.2018.06.193.

Small scale radial inflow turbine performance and pre-design maps for Organic Rankine Cycles

V. Mounier; L. E. Olmedo; J. Schiffmann 

Energy. 2018. Vol. 143, p. 1072-1084. DOI : 10.1016/j.energy.2017.11.002.

Modeling and Designing of a Radial Anode Off-Gas Recirculation Fan for Solid Oxide Fuel Cell Systems

P. H. Wagner; Z. Wuillemin; S. Diethelm; J. Van Herle; J. A. Schiffmann 

Journal of Electrochemical Energy Conversion and Storage. 2017. Vol. 14, num. 1, p. 011005. DOI : 10.1115/1.4036401.

Thermo-economic optimization of an ORC driven heat pump based on small scale turbomachinery and comparison with absorption heat pumps

V. Mounier; L. C. Mendoza Toledo; J. A. Schiffmann 

International Journal of Refrigeration. 2017. Vol. 81, p. 96-110. DOI : 10.1016/j.ijrefrig.2017.05.021.

Design of Oil-Free Turbocompressors for a Two-Stage Industrial Heat Pump under Variable Operating Conditions

A. Javed; C. Arpagaus; S. Bertsch; J. A. Schiffmann 

2016. 23 rd International Compressor Engineering Conference at Purdue, Purdue, West Lafayette, USA, July 11-14, 2016.

Small-scale turbocompressors for wide-range operation with large tip-clearances for a two-stage heat pump concept

A. Javed; C. Arpagaus; S. Bertsch; J. Schiffmann 

International Journal of Refrigeration. 2016. Vol. 69, p. 285-302. DOI : 10.1016/j.ijrefrig.2016.06.015.

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