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Experimental setup of a cascaded two-stage organic Rankine cycle

  • 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 measuredIn 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.zeige mehrzeige weniger

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Metadaten
Verfasserangaben:Frithjof H. Dubberke, Matthias Linnemann, Wameedh Khider Abbas, Elmar Baumhögger, Klaus-Peter Priebe, Maximilian Roedder, Matthias Neef, Jadran Vrabec
Fachbereich/Einrichtung:Hochschule Düsseldorf / Fachbereich - Maschinenbau und Verfahrenstechnik
Dokumentart:Wissenschaftlicher Artikel
Erscheinungsjahr:2018
Sprache der Veröffentlichung:Englisch
Verlag:Elsevier
Titel des übergeordneten Werkes (Englisch):Applied Thermal Engineering
Band/Jahrgang/Volume:131
Erste Seite:958
Letzte Seite:964
DOI:https://doi.org/10.1016/j.applthermaleng.2017.11.137
Freies Schlagwort / Tag:cascade; exergetice efficiency; multicomponent working fluid; organic Rankine cycle; pinch point; temperature-glide
DDC-Klassifikation:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Lizenz (Deutsch):keine Lizenz - nur Metadaten
Datum der Freischaltung:13.12.2019
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