Identification of the characteristics of a carbon dioxide breathing rotary sliding–vane expander

Jaroslaw Milewski, Piotr Lis, Artur Olszewski, Arkadiusz Sienko, Tomasz Sek


This paper presents a study providing the experimental analyses on the rotary vane expander operating conditions with carbon
dioxide as working fluid in comparison against air (chosen as reference). Such working fluid is promising for application as
energy converters in a waste heat recovery for electric power. Experiments were performed on a prototype of rotary sliding
vane expander.
The experiment demonstrated that commercially available multi–vane pneumatic engines can be adopted to waste heat
recovery systems. During the experiments, the operation of the multi–vane expander was kept under observation for various
inlet temperature, various pressure ratios, and various rotational speeds. Adequate maps of performances for air and carbon
dioxide were created, compared against each other, and commented. In general, by using the same machine, power and
efficiency can be raised by only change of working fluid.

Full Text:



Y. M. Kim, D. G. Shin, C. G. Kim, Optimization of design pressure

ratio of positive displacement expander for vehicle engine waste heat

recovery, Energies 7 (9) (2014) 6105–6117.

J. Milewski, M. Wołowicz, Variant analysis of the structures and parameters

of the systems with supercritical co2, in: Hydrogen Power

Theoretical and Engineering Solutions International Symposium June

-30, 2017 - Syracuse, Italy, 2017, p. 232.

Z. Gnutek, E. Kalinowski, Application of rotary vane expanders in systems

utilizing the waste heat, in: International Compressor Engineering

Conference, 1994.

M. B. M. Tahir, N. Yamada, T. Hoshino, Efficiency of compact organic

rankine cycle system with rotary-vane-type expander for lowtemperature

waste heat recovery, International Journal of Mechanical

and Mechatronics Engineering 4 (1) (2010) 105–110.

C. Xia, W. Zhang, G. Bu, Z. Wang, P. Shu, Experimental study on a

sliding vane expander in the hfc410a refrigeration system for energy

recovery, Applied Thermal Engineering 59 (1) (2013) 559–567.

G. Montenegro, A. Della Torre, M. Fiocco, A. Onorati, C. Benatzky,

G. Schlager, Evaluating the performance of a rotary vane expander for

small scale organic rankine cycles using cfd tools, Energy Procedia 45

(2014) 1136–1145.

V. Vodicka, L. Guillaume, J. Mascuch, V. Lemort, Testing and modeling

a vane expander used in an orc working with hexamethyldisiloxane

(mm), ASME ORC 2015 (2015) 136.

G. Bianchi, Exhaust waste heat recovery in internal combustion engines,

Ph.D. thesis, Ph. D. Thesis, University of L’Aquila, L’Aquila, Italy


P. Kolasi ´ nski, P. Błasiak, J. Rak, Experimental and numerical analyses

on the rotary vane expander operating conditions in a micro organic

rankine cycle system, Energies 9 (8) (2016) 606.

J. Mascuch, V. Novotny, V. Vodicka, Z. Zeleny, Towards development of

-10 kw pilot orc units operating with hexamethyldisiloxane and using

rotary vane expander, Energy Procedia In Press.


  • There are currently no refbacks.