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Electric utility acid fuel cell stack technology advancementThe principal effort under this program was directed at the fuel cell stack technology required to accomplish the initial feasibility demonstrations of increased cell stack operating pressures and temperatures, increased cell active area, incorporation of the ribbed substrate cell configuration at the bove conditions, and the introduction of higher performance electrocatalysts. The program results were successful with the primary accomplishments being: (1) fabrication of 10 sq ft ribbed substrate, cell components including higher performing electrocatalysts; (2) assembly of a 10 sq ft, 30-cell short stack; and (3) initial test of this stack at 120 psia and 405 F. These accomplishments demonstrate the feasibility of fabricating and handling large area cells using materials and processes that are oriented to low cost manufacture. An additional accomplishment under the program was the testing of two 3.7 sq ft short stacks at 12 psia/405 F to 5400 and 4500 hours respectively. These tests demonstrate the durability of the components and the cell stack configuration to a nominal 5000 hours at the higher pressure and temperature condition planned for the next electric utility power plant.
Document ID
19850009113
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Congdon, J. V.
(United Technologies Corp. South Windsor, CT, United States)
Goller, G. J.
(United Technologies Corp. South Windsor, CT, United States)
Greising, G. J.
(United Technologies Corp. South Windsor, CT, United States)
Obrien, J. J.
(United Technologies Corp. South Windsor, CT, United States)
Randall, S. A.
(United Technologies Corp. South Windsor, CT, United States)
Sandelli, G. J.
(United Technologies Corp. South Windsor, CT, United States)
Breault, R. D.
(United Technologies Corp. South Windsor, CT, United States)
Austin, G. W.
(United Technologies Corp. South Windsor, CT, United States)
Bopse, S.
(United Technologies Corp. South Windsor, CT, United States)
Coykendall, R. D.
(United Technologies Corp. South Windsor, CT, United States)
Date Acquired
September 5, 2013
Publication Date
November 1, 1984
Subject Category
Energy Production And Conversion
Report/Patent Number
DOE/NASA/0191-1
NAS 1.26:174804
FCR-4684F
NASA-CR-174804
Accession Number
85N17422
Funding Number(s)
CONTRACT_GRANT: DE-AI21-80ET-17088
CONTRACT_GRANT: DEN3-191
PROJECT: RTOP 778-17-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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