Research Group of Working Fluids


Budapest University of Technology and Economics, Faculty of Mechanical Engineering, Department of Energy Engineering



-          Physical-chemical properties of high-pressure fluids

-          Selection of working fluids for various energy-related applications

-          Metastable systems and metamaterials


Head of the Group:                                                                                                Researchers:

Prof.  Attila R. Imre, DSc, dr. habil.                                                                        Dr. Axel Groniewsky, PhD, Assistant Professor

contact:imreattilaat”                                                           Mr. Gábor Györke, PhD student


Undergraduate members:

Ms. Adrienn Katona, BSc student, Energy Engineering

Ms. Anna Mihók, BSc student, Energy Engineering


The Working Fluids group is the member of the COSSMAT network.


Recent publications:

1.      A. R. Imre, U.K. Deiters, T. Kraska, I. Tiselj: The pseudocritical regions for supercritical water,  Nuclear Engineering & Design, 252(2012)179-183

2.      S. Braun, A. R. Imre, T. Kraska: Stability limits of n-nonane calculated from molecular dynamics interface simulations, Journal of Chemical Physics, 138(2013)244710; doi: 10.1063/1.4811197

3.      A.R. Imre, A. Baranyai, U. Deiters, P.T. Kiss, T. Kraska and S. E. Quiñones Cisneros: Estimation of the Thermodynamic Limit of Overheating for Bulk Water from Interfacial Properties, International Journal of Thermophysics, 34(2013)2053–2064, DOI 10.1007/s10765-013-1518-8

4.      A. R. Imre: Metamaterials with negative compressibility – a novel concept with a long history, Materials Science – Poland, 32(2014)126-129, DOI: 10.2478/s13536-013-0179-4

5.      Attila R. Imre, Sergio E. Quinones-Cisneros, Ulrich K. Deiters: Adiabatic processes in the liquidvapor two-phase region - 1. Pure fluids, Industrial&Engineering Chemistry Research, 53(2014) 13529-13542 ,

6.      A. R. Imre, C. Ramboz, U.K. Deiters and T. Kraska :Anomalous fluid properties of carbon dioxide in the supercritical regionApplication to geological CO2 storage and related hazards, Environmental Earth Sciences, 73 (2015) 4373–4384, DOI: 10.1007/s12665-014-3716-5

7.      Attila R. Imre, Sergio E. Quinones-Cisneros, Ulrich K. Deiters: Adiabatic processes in the vaporliquid two-phase region - 2. Binary mixtures, Industrial&Engineering Chemistry Research, 54 (2015) 6559-6568, DOI: 10.1021/acs.iecr.5b01247

8.      I. F. Barna, M. A. Pocsai, A. Guba, and A. R. Imre (2015). Theoretical study of steam condensation induced water hammer phenomena in horizontal pipelines, Kerntechnik, 80 (2015) 420-423.

9.      A. Groniewsky, Analysis of Particle Swarm-Aided Power Plant Optimization, Periodica Polytechnica. Engineering. Mechanical Engineering, vol. 59 (3), pp. 102-108, 2015

10.  Sega, Marcello; Fábián, Balázs; Imre, Attila R.; Jedlovszky, Pal: Relation Between the Liquid Spinodal Pressure and the Lateral Pressure Profile at the Liquid-Vapor Interface, Journal of Physical Chemistry C,  121 (2017) 12214-12219.

11.  Axel Groniewsky, Gábor Györke, Attila R. Imre: Description of wet-to-dry transition in model ORC working fluids, Applied Thermal Engineering, 125 (2017) 963–971


last update: Oct. 10, 2017