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Title: Solid oxide fuel cell power plant having a fixed contact oxidation catalyzed section of a multi-section cathode air heat exchanger

Patent ·
OSTI ID:1170410

The multi-section cathode air heat exchanger (102) includes at least a first heat exchanger section (104), and a fixed contact oxidation catalyzed section (126) secured adjacent each other in a stack association. Cool cathode inlet air flows through cool air channels (110) of the at least first (104) and oxidation catalyzed sections (126). Hot anode exhaust flows through hot air channels (124) of the oxidation catalyzed section (126) and is combusted therein. The combusted anode exhaust then flows through hot air channels (112) of the first section (104) of the cathode air heat exchanger (102). The cool and hot air channels (110, 112) are secured in direct heat exchange relationship with each other so that temperatures of the heat exchanger (102) do not exceed 800.degree. C. to minimize requirements for using expensive, high-temperature alloys.

Research Organization:
Ballard Power Systems, Inc., Burnaby, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
NT 0003894
Assignee:
Ballard Power Systems Inc. (Burnaby, CA)
Patent Number(s):
8,956,777
Application Number:
13/735,237
OSTI ID:
1170410
Resource Relation:
Patent File Date: 2013 Jan 07
Country of Publication:
United States
Language:
English

References (6)

One-end closed ceramic double tube and method of manufacturing the same patent April 1992
Heat exchanger patent July 2005
Heat exchanger for high-temperature applications patent December 2006
Low-cost high-temperature heat exchanger patent September 2009
Solid oxide fuel cell system patent June 2010
High temperature fuel cell system with integrated heat exchanger network patent December 2010