Efforts and resources are being directed to reduction of pollutant emissions in the most varied sectors. The interest in solid oxide fuel cell systems comes from their capability of converting the chemical energy of conventional fuels into electricity, with high efficiency and low emissions. Solid oxide fuel cell systems are being studied for production of auxiliary power in trucks, ships and airliners, and also for propulsion, as in Unmanned Aerial Vehicles. In some of these applications, prototypes are already being developed. In this paper, a study of the design space of solid oxide fuel cell systems and hybridization with gas turbines for transportation application is presented. Different configurations and promising compact and lightweight technologies were investigated. Solid oxide fuel cell systems were analysed using WTEMP original software developed by the Thermochemical Power Group of the University of Genoa. The influence of the main design variables on efficiency and weight was investigated. Results show that pressurized hybrid systems are more efficient and lighter than the atmospheric system. Electrical current density is a key parameter for reducing weight. The 'simple cycle' hybrid system shows lower efficiency but also lower weight.
Solid oxide fuel cell and gas turbine hybrid systems for transportation
Hybridsysteme aus Festoxidbrennstoffzelle und Gasturbine für den Transportbereich
2009
14 Seiten, 9 Bilder, 5 Tabellen, 13 Quellen
Conference paper
Storage medium
English
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