Manufacturing Industry
Hybrid SOFC Aircraft Auxiliary Power Unit.(Brief Article)
Fuel Cell Technology News, January, 2005
Aircraft may now have two choices of auxiliary power units (APU's). These are the traditional turbine-driven APUs and, according the Boeing Co. (Chicago, IL), the fuel cell APU. APUs provide electricity to on-board systems. Turbine-driven APU's burn jet fuel to drive a turbine, which in turn drive a generator to produce electricity. Fuel cells chemically convert fuel into electrical energy. Both types of APU's can find use in powering on-board systems while the aircraft is on the ground, or in the air.
In U. S. Patent 6,834,831, issued in late December 2004, Boeing describes a hybrid SOFC for aircraft APU's. The power unit employs a fuel cell configured to chemically convert combustible fuel into electricity. A waste fuel burner is configured to receive...
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