STACK CONFIGURATIONS FOR TUBULAR SOLID OXIDE FUEL CELLS

摘要

A fuel cell unit 1 includes an array of solid oxide fuel cell tubes (18). Solid oxide fuel cell tubes (18) have porous metallic exterior surfaces (116), interior fuel cell layers (112-114), and interior surfaces (118). Each of the solid oxide fuel cell tubes (18) have at least one open end. At least one header (28) is in operable communication with the array of solid oxide fuel cell tubes (18) for directing a first reactive gas into contact with the porous metallic exterior surfaces (116) and for directing a second reactive gas into contact with the interior surfaces (118). The header (28) further includes at least one busbar disposed in electrical contact with at least one surface selected from the group consisting of the porous metallic exterior surfaces (116) and the interior surfaces (118).