Law-cost atmospheric SOFC power generation system

摘要

A solid oxide fuel cell generator (10) contains stacks (20) of hollow, tubular axially elongated fuel cells (36) which can operate to generate electricity; a single oxidant inlet plenum (52) including a bottom enclosing member, having holes therethrough which acts as an oxidant feed tube positioning board (77); a fuel inlet plenum (11); an oxidant/fuel exhaust chamber (94); power leads (32) electrically connected to the fuel cells transverse to the axis (36') of the fuel calls; and a plurality of oxidant feed tubes (51); all surrounded by insulation (76); where there are at least two fuel cell stacks arranged in a row next to each other, the oxidant feed tube positioning board at the bottom of the oxidant inlet plenum is a laminate of layers of porous alumino-silicate ceramic fibers bonded with a ceramic alumina binder and dense woven ceramic (78) impregnated with ceramic adhesive (79), and wherein the insulation constitutes, primarily, bulk ceramic fibers.