Patent ID: 8137855

Claim:
A fuel cell stack module, comprising: a plurality of fuel cell stacks; an anode tail gas oxidizer (ATO) which is located in a heat transfer relationship with the plurality of fuel cell stacks; a base supporting the plurality of fuel cell stacks and the ATO; a shell removably positioned on the base; and at least one heat exchanger located in the base, wherein the at least one heat exchanger comprises a multi-stream heat exchanger, and wherein: the base comprises a chamber having an interior volume and an upper surface; the ATO and the plurality of fuel cell stacks are positioned on the upper surface of the base; the at least one heat exchanger is located in the interior volume of the base; a fuel inlet line is connected to a first inlet of the multi-stream heat exchanger; an air inlet line is connected to a second inlet of the multi-stream heat exchanger; an anode exhaust line is connected to a third inlet of the multi-stream heat exchanger; and an ATO exhaust line is connected to a fourth inlet of the multi-stream heat exchanger.