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Title: Thermal energy recycling fuel cell arrangement

Patent ·
OSTI ID:1350994

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.

Research Organization:
AUDI AG, Ingolstadt, DE (Germany)
Sponsoring Organization:
USDOE
DOE Contract Number:
NT0003894
Assignee:
AUDI AG
Patent Number(s):
9,620,792
Application Number:
13/996,081
OSTI ID:
1350994
Resource Relation:
Patent File Date: 2011 Jan 03
Country of Publication:
United States
Language:
English

References (11)

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