A Recent Advance on Partial Evaporating Organic Rankine Cycle: Experimental Results on an Axial Turbine

Guillaume Lhermet, Nicolas Tauveron (), Nadia Caney, Quentin Blondel and Franck Morin
Additional contact information
Guillaume Lhermet: CEA, DES, IRESNE, DER, SESI, LCOS, F-13108 Saint Paul Lez Durance, France
Nicolas Tauveron: Université Grenoble Alpes, CEA, LITEN, LCST, F-38054 Grenoble, France
Nadia Caney: Université Grenoble Alpes, CEA, LITEN, LCST, F-38054 Grenoble, France
Quentin Blondel: Université Grenoble Alpes, CEA, LITEN, LCST, F-38054 Grenoble, France
Franck Morin: CEA, DES, IRESNE, DER, SESI, LCOS, F-13108 Saint Paul Lez Durance, France

Energies, 2022, vol. 15, issue 20, 1-21

Abstract: The organic Rankine cycle (ORC) technology is an efficient way to convert low-grade heat from renewable sources or waste heat for power generation. The partial evaporating organic Rankine cycle (PEORC) can be considered as a promising alternative as it can offer a higher utilization of the heat source. An experimental investigation of a small ORC system used in full or partial evaporation mode is performed. First characterized in superheated mode, which corresponds to standard ORC behavior, a semi-empirical correlative approach involving traditional non-dimensional turbomachinery parameters (specific speed, pressure ratio) can accurately describe one-phase turbine performance. In a second step, two-phase behavior is experimentally investigated. The efficiency loss caused by the two-phase inlet condition is quantified and considered acceptable. The turbine two-phase operation allows for an increase in the amount of recovered heat source. The ability to operate in two phases provides a new degree of flexibility when designing a PEORC. The semi-empirical correlative approach is then completed to take into account the partially evaporated turbine inlet condition. The qualitative description and the quantitative correlations in the one-phase and two-phase modes were applied to different pure working fluids (Novec649 TM , HFE7000 and HFE7100) as well as to a zeotropic mixture (Novec649 TM /HFE7000).

Keywords: organic Rankine cycle (ORC); partial evaporating organic Rankine cycle (PEORC); wet-to-dry cycle; axial turbine; dry fluid (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/20/7559/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/20/7559/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:20:p:7559-:d:941354

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().