The integration of fuel cells into transport systems accompanies the development of the mechatronic or all-electric systems replacing classical mechanical solutions. The hybrid cars entering the markets are the first visible step of this development. These systems allow a better approach of reversible solutions because the possibility of charging and discharging of electric power allows more reversible system architectures. A specific challenge is the integration of fuel cell systems and particular SOFC hybrids onboard aircraft and ships as new components. The change of the architecture will lead to All-Electric Ships and More Electric Aircrafts. Even though hydrogen might be a long-term solution, the necessary storage of fuel and the world-wide availability demand kerosene and maritime diesel as the application relevant fuels. The design of SOFC hybrids has to consider the optimal thermal integration of the fuel processing. The use of a Matlab-Simulink based model showed that the efficiency of a reference SOFC hybrid cycle may vary between about 50 to 70 %. The influence of part load operation has been considered between an altitude of 0 and 12000 m to simulate real aircraft operation. The electric efficiency was between 60 and 65 %. Part load calculations give valuable information about the control regime of the BoP.
Aspects of process design of SOFC hybrid systems for aeronautic and maritime applications
Beim Prozessentwurf von Festoxidbrennstoffzellen-Hybridsystemen für die Luftfahrt und maritime Anwendungen zu beachtende Aspekte
2005
11 Seiten, 11 Bilder, 1 Tabelle, 8 Quellen
Aufsatz (Konferenz)
Englisch
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