Abstract: A method and system are disclosed for reducing the consumption of safety gas in a fuel cell system having at least one fuel cell unit whose fuel cells include an anode side and a cathode side, as well as an electrolyte interposed therebetween. A supply is provided for supplying the anode with a safety gas, and an exhaust is provided for exhausting the fuel cell unit of a spent safety gas coming from the anode side. The method can adapt a specific percentage of the spent safety gas flow coming from the anode side of the fuel cells to be re-supplied into the anode side of the fuel cells.

Abstract: The disclosure relates to a system and a method for enhancing the preheating of a fuel cell system having at least one fuel cell unit whose fuel cells are provided with an anode side, a cathode side and an electrolyte provided therebetween, as well as a connecting plate set between each of the fuel cells. In operation, safety gas flowing on the anode side is heated, at least for the most part (e.g., greater than 50%), in the fuel cell unit by thermal energy contained in a gas flowing on the cathode side.

Abstract: A method and system are disclosed for reducing the consumption of safety gas in a fuel cell system having at least one fuel cell unit whose fuel cells include an anode side and a cathode side, as well as an electrolyte interposed therebetween. A supply is provided for supplying the anode with a safety gas, and an exhaust is provided for exhausting the fuel cell unit of a spent safety gas coming from the anode side. The method can adapt a specific percentage of the spent safety gas flow coming from the anode side of the fuel cells to be re-supplied into the anode side of the fuel cells.