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Title: Thermal energy recycling fuel cell arrangement

An example fuel cell arrangement includes a fuel cell stack configured to receive a supply fluid and to provide an exhaust fluid that has more thermal energy than the supply fluid. The arrangement also includes an ejector and a heat exchanger. The ejector is configured to direct at least some of the exhaust fluid into the supply fluid. The heat exchanger is configured to increase thermal energy in the supply fluid using at least some of the exhaust fluid that was not directed into the supply fluid.
Inventors:
Issue Date:
OSTI Identifier:
1350994
Assignee:
AUDI AG NETL
Patent Number(s):
9,620,792
Application Number:
13/996,081
Contract Number:
NT0003894
Resource Relation:
Patent File Date: 2011 Jan 03
Research Org:
AUDI AG, Ingolstadt, DE (Germany)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; 42 ENGINEERING

Other works cited in this record:

Pressurized fuel cell power plant with single reactant gas stream
patent, August 1976

Pressurized fuel cell power plant
patent, January 1977

Pressurized high temperature fuel cell power plant with bottoming cycle
patent, August 1977

Fuel cell power plant and method for operating the same
patent, December 1978

Fuel cell power plant
patent, November 1986

Fuel cell power plant
patent, December 1991

Integrated gas turbine solid oxide fuel cell system
patent, May 1995

Purge gas protected transportable pressurized fuel cell modules and their operation in a power plant
patent, November 1996

Solid oxide fuel cell system
patent, October 2006

Fuel cell system
patent, May 2007

Integral air preheater and start-up heating means for solid oxide fuel cell power generators
patent, January 2008

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