A fuel cell system (1) is provided and includes a fuel cell stack (3), a cathode recuperator heat exchanger (33) adapted to heat an air inlet stream using heat from a fuel cell stack cathode exhaust stream, and an air preheater heat exchanger (39) which is adapted to heat the air inlet stream using heat...http://www.google.com/patents/US20060251939?utm_source=gb-gplus-sharePatent US20060251939 - High temperature fuel cell system with integrated heat exchanger network
