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Purge gas protected transportable pressurized fuel cell modules and their operation in a power plant

United States Patent

5,573,867
November 12, 1996
View the Complete Patent at the US Patent & Trademark Office
A fuel cell generator apparatus and method of its operation involves: passing pressurized oxidant gas, (O) and pressurized fuel gas, (F), into fuel cell modules, (10 and 12), containing fuel cells, where the modules are each enclosed by a module housing (18), surrounded by an axially elongated pressure vessel (64), where there is a purge gas volume, (62), between the module housing and pressure vessel; passing pressurized purge gas, (P), through the purge gas volume, (62), to dilute any unreacted fuel gas from the modules; and passing exhaust gas, (82), and circulated purge gas and any unreacted fuel gas out of the pressure vessel; where the fuel cell generator apparatus is transpatable when the pressure vessel (64) is horizontally disposed, providing a low center of gravity.
Zafred; Paolo R. (Pittsburgh, PA), Dederer; Jeffrey T. (Valencia, PA), Gillett; James E. (Greensburg, PA), Basel; Richard A. (Plub Borough, PA), Antenucci; Annette B. (Pittsburgh, PA)
Westinghouse Electric Corporation (Pittsburgh, PA)
08/ 594,214
January 31, 1996
GOVERNMENT CONTRACT The Government of the United States of America has rights in this invention, pursuant to Contract No. DE-FC21-91MC28055 with the United States Department of Energy.