Fuel cell system and method for operating a fuel cell system

• Main Authors: Saballus, Martin, Renouard Vallet, Gwenaelle, Brauer, André, Stolte, Ralf-Henning
• Format: Patent
• Language: English; French; German
• Published: 22.01.2020
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A fuel cell system (2) comprises at least one fuel cell (4) having an air inlet (36) and an exhaust gas outlet (44), an air supply device (8) connectable to the air inlet (36) and an exhaust gas extracting device (10) connectable to the exhaust gast outlet (44). Further, a water extraction device (6) has at least two drying units (14, 16, 18), wherein the water extraction device (6) is adapted for selectively providing a fluid connection from the air supply device (8) to the air inlet (36) of the fuel cell (4) be means of one of the at least two drying units (14, 16, 18) and from the exhaust gas extracting device (10) to the exhaust gas outlet (44) by means of another one of the at least two drying units (14, 16, 18). Thereby, an optimal drying process is conducted that does not influence a dynamic power generation.