An auxiliary power unit (APU) is responsible for powering different aircraft electrical demands, mainly electrical services, when the aircraft is on the ground. Conventional APUs comprise a generator coupled to a combustion engine that partially consumes the aircraft jet fuel, which causes noise and environmental pollution. Aircraft efficiency improvements rely on substituting systems that were once mechanical, pneumatic, and hydraulic to systems in search of higher efficiency, reliability, and reduction of costs and pollutant emissions, such as in a more electric aircraft (MEA). In a fuel cell APU, the combustion engine is replaced by a fuel cell, an electrochemical device producing electrical energy with higher conversion efficiency. A fuel cell generates heat and water on board that can reduce the use of heavy on board aircraft components (e.g., water tanks) and improve passenger satisfaction. After introducing technical details of conventional APUs, this chapter presents current developments of fuel cell APUs. It focuses on the two most promising fuel cell APUs types, the APU comprising a solid oxide fuel cell (SOFC-APU) and a proton-exchange membrane fuel cell (PEMFC-APU).


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Fuel Cells as APU in Aircrafts


    Weitere Titelangaben:

    Sustainable aviat.




    Erscheinungsdatum :

    24.09.2022


    Format / Umfang :

    23 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Fuel Cell–Powered Passenger Aircrafts

    Tomažič, Tine | Springer Verlag | 2022


    AIRCRAFTS OEPRATING SYSTEM AIRCRAFTS OF AIRCRAFTS OPERATING SYSTEM AND OPERATIONG METHOD OF AIRCRAFTS

    HWANG SUN YU / LIM SEUNG HAN / HONG JIN SUNG et al. | Europäisches Patentamt | 2016

    Freier Zugriff

    FUEL CELL TEMPERATURE MANAGEMENT FOR AIRCRAFTS

    KLEWER GUIDO / HANCOCK KURTUS / HORDE THÉOPHILE | Europäisches Patentamt | 2022

    Freier Zugriff

    Optical fuel quantity measurement in aircrafts

    Cierullies, Sven / Bebermeier, Ingo | Tema Archiv | 2007