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Multi operating point aerodynamic optimization of a radial compressor impeller for an application in high temperature heat pump

Schaffrath, Robert und Kriese, Maximilian und Kajasa, Bojan und Köhler, Martino und Nicke, Eberhard und Voß, Christian (2022) Multi operating point aerodynamic optimization of a radial compressor impeller for an application in high temperature heat pump. In: ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022. ASME Turbo Expo 2022 Turbomachinery Technical Conference, 2022-06-13 - 2022-06-17, Rotterdam, Niederlande. doi: 10.1115/GT2022-82130. ISBN 978-079188612-0.

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Kurzfassung

The decarbonization of production processes plays an important role on the way to environmentally friendly economy. Especially, the implementation of high temperature heat pumps (HTHP) offers a great potential to replace fossil fuel-based energy infrastructure. A major issue for the introduction of HTHP is the initial cost and regarding the payback period. However, there is still potential in increasing the coefficient of performance (COP) of HTHP for the economic integration in existing industrial processes. One important possibility is the dedicated development and design of turbocompressors for this application and the planned heat transfer medium including the aerodynamic optimization of compressor geometry. Against this background an automated aerodynamic optimization method for radial compressor blade geometry for superheated steam is presented. The optimization refers to two different operating points of the HTHP and focuses on maximizing the isentropic efficiency of the impeller geometry as well as the pressure ratio. The algorithm is accelerated by data-driven metamodels and is implemented in a high-performance cluster environment. The boundary condition of the inherent computational fluid dynamics (CFD) calculation comes from the thermodynamic cycle calculation of the whole HTHP system. A two-stage compression with intercooling between the compressor stages are foreseen. Our approach shows an increment of both objective functions in both operating points and the satisfaction of further side conditions for the low pressure compressor (LPC). Furthermore, it results in an increment of 5 percent points of isentropic efficiency and 13 percent points of static to total pressure ratio in comparison to our initial geometry. These impeller optimizations result in a COP increment of 5 percent. The resulting geometry will be interpreted in the context of aerodynamic behavior. Based on that results additionally, a flow-cut optimization for the high pressure compressor (HPC) is given and evaluated. The results are comparable to aerodynamic optimization in different research fields like aircraft engines or stationary gas turbines and contribute to optimized multistage compressor design for HTHP.

elib-URL des Eintrags:https://elib.dlr.de/187572/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Multi operating point aerodynamic optimization of a radial compressor impeller for an application in high temperature heat pump
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Schaffrath, RobertRobert.Schaffrath (at) dlr.dehttps://orcid.org/0000-0001-8487-8299NICHT SPEZIFIZIERT
Kriese, MaximilianMaximilian.Kriese (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Kajasa, BojanBojan.Kajasa (at) dlr.dehttps://orcid.org/0009-0007-3997-3458NICHT SPEZIFIZIERT
Köhler, MartinoMartino.Koehler (at) dlr.dehttps://orcid.org/0009-0004-0551-6302NICHT SPEZIFIZIERT
Nicke, EberhardEberhard.Nicke (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Voß, ChristianChristian.Voss (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:2022
Erschienen in:ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition, GT 2022
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
DOI:10.1115/GT2022-82130
ISBN:978-079188612-0
Status:veröffentlicht
Stichwörter:Compressor design, aerodynamic optimization, superheated steam, high temperature heat pump
Veranstaltungstitel:ASME Turbo Expo 2022 Turbomachinery Technical Conference
Veranstaltungsort:Rotterdam, Niederlande
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:13 Juni 2022
Veranstaltungsende:17 Juni 2022
Veranstalter :The American Society of Mechanical Engineers
HGF - Forschungsbereich:Energie
HGF - Programm:Materialien und Technologien für die Energiewende
HGF - Programmthema:Thermische Hochtemperaturtechnologien
DLR - Schwerpunkt:Energie
DLR - Forschungsgebiet:E SP - Energiespeicher
DLR - Teilgebiet (Projekt, Vorhaben):E - Dekarbonisierte Industrieprozesse
Standort: Zittau
Institute & Einrichtungen:Institut für CO2-arme Industrieprozesse > Hochtemperaturwärmepumpen
Hinterlegt von: Schaffrath, Robert
Hinterlegt am:24 Nov 2022 09:59
Letzte Änderung:24 Apr 2024 20:48

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