Method and arrangement to control the heat balance of fuel cell stacks in a fuel cell system
AssigneeWäRtsilä Finland Oy
InventorsKim ASTRÖM, Tero HOTTINEN
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Abstract
A method to control the heat balance of fuel cell stacks in a fuel cell system, the fuel cell system including at least one fuel cell unit including fuel cell stacks, whose fuel cells include an anode side and a cathode side, as well as an electrolyte interposed therebetween, and a recuperator unit for heat exchange for preheating a supply flow of the cathode side. In the method, a desired portion is separated from the fuel exhaust flow coming from the anode side and adapted to be mixed with the cathode side exit flow before said recuperator unit. Also provided is a fuel cell system implementing the method.
Claims18
A method to control a heat balance of fuel cell stacks in a fuel cell system, said fuel cell system including at least one fuel cell unit comprising fuel cell stacks, whose fuel cells include an anode side and a cathode side, as well as an electrolyte interposed therebetween, the method comprising separating a desired portion from a fuel exhaust flow of the anode side, and supplying the desired portion into a fuel stack compartment surrounding the fuel cell units.
A heat balance control system of fuel cell stacks in a fuel cell system, said fuel cell system including at least one fuel cell unit comprising fuel cell stacks, whose fuel cells include an anode side and a cathode side, as well as an electrolyte interposed therebetween, the heat balance control system comprising an arrangement wherein a desired portion has been adapted to be separated from a fuel exhaust flow of the anode side and to be supplied into a fuel stack compartment surrounding the fuel cells.
Dependencies are inferred from the claim text.