Phosphoric acid electric utility fuel cell technology development. Technical progress report No. 12

Technical Report · Sun Apr 01 04:00:00 EST 1984

OSTI ID:5963847

Breault, R D; Briggs, T A; Congdon, J V; DeMarche, T E; Gelting, R L; Goller, G J; Luoma, W L; McCloskey, M W; Mientek, A P; O'Brien, J J

Over 1500 hours and 15 thermal cycles were accumulated on the first 10-ft, 290-cell stack at 120 psia and 405/sup 0/F. Over 10,400 hours and 28 thermal cycles have been accumulated on the 3.7-ft/sup 2/, 30-cell stack at 120 psia and 405/sup 0/F. Electrodes and separator plates have been completed for the next 10-ft/sup 2/ short stack. Scaled-up GSB-18 catalyst selected for the next 10-ft/sup 2/ short stack is performing at the E-line goal after 5600 hours at 120 psia and 400/sup 0/F in a shop-made subscale cell. This test fulfills the 5000 hour catalyst endurance goal. A GSB-26 catalyst is performing at the E-line goal after 3800 hours at 120 psia and 400/sup 0/F. The baseline cross pressure evaluation has been completed of a 3.7-ft/sup 2/, seven cell ..delta..P rig. Automated equipment to increase processing rates and reduce manpower was used to conduct the wettability, catalyst deposition, matrix application and trimming operations of the 10-ft/sup 2/ electrodes for the next short stack.

• Research Organization: United Technologies Corp., South Windsor, CT (USA). Power Systems Div.
• DOE Contract Number: AC21-83FE60338
• OSTI ID: 5963847
• Report Number(s): FCR-6328F; ON: DE84015744
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300500* -- Fuel Cells
CATALYSTS
DESIGN
ELECTRIC UTILITIES
FABRICATION
FUEL CELL POWER PLANTS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
PHOSPHORIC ACID
POWER PLANTS
PUBLIC UTILITIES
RESEARCH PROGRAMS