Patent ID: 8062802
Filing Date: 2011-11-22
Classification: H01M,Y02E,Y02T

Abstract:
1. A method of altering the temperature of off-gases exiting at least one fuel cell stack, the at least one fuel cell stack having separate anode and cathode off-gas flow paths, the method comprising: passing separate anode off-gas from the at least one fuel cell stack and at least one heat transfer fluid through a first heat exchange element to exchange heat between the anode off-gas and the at least one heat transfer fluid; passing the separate anode off-gas from the first heat exchange element to a burner; passing the separate cathode off-gas exiting the at least one fuel cell stack into said burner; and burning the combined anode and cathode off-gases to produce burner off-gas; and passing burner off-gas and the at least one heat transfer fluid through a second heat exchange element to exchange heat between the burner off-gas and the at least one heat transfer fluid.