Aerovehicular application of solid oxide fuel cell/gas turbine (SOFC/GT) auxiliary power units (APUs) is a promising concept that may significantly aid the advent of next-generation, environmentally benign aircrafts. The hybrid concept may not only be a novelty, but a necessity, for viably realizing the benefits of fuel cells on-board. A generic design concept is proposed wherein the strategic integration of the cell stack with a bottoming turbine for APU duty, along with regenerative fuel recirculation, could be used to foster larger reactant “numbers-of-stoichs” (NOS) levels within the stack. This may engender larger gravimetric power densities, capacitance for load following and thermal reliability. Fuel utilization/NOS may then be a significant design degree-of-freedom to include within the design process.
- Nanotechnology Institute
Preliminary Aeronautical Design Considerations of “High NOS” SOFC/GT Hybrids
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Haynes, C. "Preliminary Aeronautical Design Considerations of “High NOS” SOFC/GT Hybrids." Proceedings of the ASME 2004 2nd International Conference on Fuel Cell Science, Engineering and Technology. 2nd International Conference on Fuel Cell Science, Engineering and Technology. Rochester, New York, USA. June 14–16, 2004. pp. 639-645. ASME. https://doi.org/10.1115/FUELCELL2004-2533
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