MATEC Web of Conferences
Volume 18, 2014101 EUROTHERM Seminar – Transport Phenomena in Multiphase Systems
|Number of page(s)||8|
|Section||Heat/mass exchangers and industrial applications, Microjets|
|Published online||05 December 2014|
An influence of low-stability region on dense gas phenomena and their peculiarities in the ORC fluids
AGH University of Science and Technology, Faculty of Energy and Fuels, 30-059 Krakow, Poland
a Corresponding author: firstname.lastname@example.org
An existence of low stability region in the dense vapours and its influence on some peculiarities in behaviour of selected dry and isentropic ORC fluids is discussed. The retrograde phenomena in the flow of BZT fluids [1.] can be simply related to the mechanical and thermodynamic stability parameters. These new refrigerant and their properties have been analysed based on the software tools REFPROP v.9.1 [2.]. Test examples have confirmed an importance of low thermodynamic stability area in the vicinity of saturation boundary line and neighbourhood of critical point of the fluid. The analytical results have been obtained for selected pure fluids applicable in the ORC and heat pump technology such C4H10, C6H5CH3, C12H26, R123, R134a, R227ea, R245fa, low GWP hydrofluoroolefins (R1234xxX)and a group of linear and cyclic siloxanes.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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