Title:
HEAT EXCHANGER FOR FUEL CELL STACK
Document Type and Number:
WIPO Patent Application WO2005057701
Kind Code:
B1
Abstract:
This invention relates to a fuel cell system comprising a fuel cell stack and a heat exchanger wrapped around the stack. The fuel cell stack comprises a fuel cell that operates at high elevated temperatures, such as a solid oxide fuel cell; the fuel cell can have a tubular configuration and comprise a pair of concentrically arranged electrode layers sandwiching a concentrically arranged electrolyte layer. The heat exchanger wraps around the fuel cell stack and comprises a flexible, thermally conductive first layer and an overlapping flexible, thermally conductive second layer spaced from the first layer. The first and second layers define adjacent annular oxidant supply and oxidant exhaust channels when wrapped around the stack. The exhaust channel is communicative with heated exhaust oxidant flowing from the stack, and the oxidant supply channel is communicative with supply oxidant that flows to the stack and is heated by heated exhaust oxidant in the adjacent oxidant exhaust channel and from heat radiating from the stack.
Inventors:
SARKAR PARTHO (CA)
RHO HONGSANG (CA)
YAMARTE LUIS (CA)
KOVACIK GARY (CA)
RHO HONGSANG (CA)
YAMARTE LUIS (CA)
KOVACIK GARY (CA)
Application Number:
PCT/CA2004/002139
Publication Date:
August 04, 2005
Filing Date:
December 15, 2004
Export Citation:
Assignee:
ALBERTA RES COUNCIL (CA)
SARKAR PARTHO (CA)
RHO HONGSANG (CA)
YAMARTE LUIS (CA)
KOVACIK GARY (CA)
SARKAR PARTHO (CA)
RHO HONGSANG (CA)
YAMARTE LUIS (CA)
KOVACIK GARY (CA)
International Classes:
F28D9/04; F28D21/00; H01M8/1213; H01M8/04007; (IPC1-7): H01M8/04; H01M8/12; H01M8/24; F28D21/00
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