Filtern
Dokumenttyp
Sprache
- Englisch (2)
Volltext vorhanden
- nein (2) (entfernen)
Gehört zur Bibliografie
- ja (2)
Schlagworte
- cascade (1)
- exergetice efficiency (1)
- multicomponent working fluid (1)
- organic Rankine cycle (1)
- pinch point (1)
- simulation (1)
- temperature-glide (1)
Fachbereich/Einrichtung
Thermodynamic simulation and experimental validation of a cascaded two-stage organic Rankine cycle
(2015)
In combination with a bottoming cycle, operated with a pure fluid in transcritical mode, the usage of a zeotropic mixture as a working fluid appears to be exergetically favorable for power cycle efficiency in cascaded two-stage organic Rankine cycles (CORC). A CORC is set up and initially tested with cyclopentane and propane as working fluids in its high temperature and low temperature cycle, respectively. A thermal oil cycle serves as the heat source and is powered electrically with a maximum heat flow of 158 kW. The design of this experimental setup allows for a rapid replacement of individual components and for a wide range of conditions in terms of fluids and thermodynamic states. The components of all cycles and the measurement and control technology are described in detail. A testing procedure is presented, followed by a discussion of the measurement results, where it is shown that the intended concept of two cascaded organic Rankine cycles is operational and that the measured data are consistent.