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Sensitivity analysis of the air compression system for a fuel cell-powered regional aircraft

Schröder, Matthias und Becker, Florian und Vorndran, Anna und Gentner, Christoph (2022) Sensitivity analysis of the air compression system for a fuel cell-powered regional aircraft. International Hydrogen Aviation Conference, 01. Sept. 2022, Glasgow, Großbritannien.

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Kurzfassung

One promising concept for a hydrogen-powered regional aircraft is to convert the hydrogen’s chemical energy into electricity using fuel cells, which in turn drive propellers with electric motors. Proton exchange membrane (PEM) fuel cells are considered the most mature type of fuel cells. They convert pure gaseous hydrogen and ambient air to electricity, waste heat and water. Because their efficiency depends on the oxygen partial pressure, these fuel cells are typically operated at increased pressures of 1 to 3 bar (absolute). To achieve these internal air pressures at the fuel cell inlet at increased flight altitudes, an air compression subsystem is required, which typically includes an air inlet, compressor and air cooler. This contribution investigates the effects of the air compression subsystem on the performance of the overall fuel cell system in a hydrogen powered regional aircraft concept developed by DLR. By extending a detailed system simulation model [1], the compression subsystem’s mass and auxiliary power consumption is assessed for different flight phases. The shift of the compressor map for different states of the supplied air is investigated experimentally in order to validate the scaling approach that is used in the system simulation model. The outcome of this analysis are detailed sensitivity studies on the effect of the individual components on the overall system performance, which in turn allows to identify the most promising metrics and approaches for further improvements to the operation and design of such systems. [1] M. Schröder, F. Becker, J. Kallo, and C. Gentner, Optimal operating conditions of PEM fuel cells in commercial aircraft, International Journal of Hydrogen Energy, vol. 46, no. 66, pp. 33218-33240, 2021, doi: https://doi.org/10.1016/j.ijhydene.2021.07.099.

elib-URL des Eintrags:https://elib.dlr.de/192886/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Sensitivity analysis of the air compression system for a fuel cell-powered regional aircraft
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Schröder, MatthiasMatthias.Schroeder (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Becker, FlorianFlorian.Becker (at) dlr.dehttps://orcid.org/0000-0001-6517-2944NICHT SPEZIFIZIERT
Vorndran, AnnaAnna.Vorndran (at) dlr.dehttps://orcid.org/0000-0002-6593-6438NICHT SPEZIFIZIERT
Gentner, ChristophChristoph.Gentner (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:1 September 2022
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:fuel cell, regional aircraft, compressor
Veranstaltungstitel:International Hydrogen Aviation Conference
Veranstaltungsort:Glasgow, Großbritannien
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:01. Sept. 2022
HGF - Forschungsbereich:Energie
HGF - Programm:Energiesystemdesign
HGF - Programmthema:Digitalisierung und Systemtechnologie
DLR - Schwerpunkt:Energie
DLR - Forschungsgebiet:E SY - Energiesystemtechnologie und -analyse
DLR - Teilgebiet (Projekt, Vorhaben):E - Energiesystemtechnologie
Standort: Hamburg
Institute & Einrichtungen:Institut für Technische Thermodynamik > Energiesystemintegration
Hinterlegt von: Schröder, Matthias
Hinterlegt am:05 Jan 2023 15:06
Letzte Änderung:05 Jan 2023 15:06

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