Portable fuel cell system with liquid separators and use, method for recovering a liquid and simulation model

摘要

Portable fuel cell system, comprising at least two in a circuit of a fuel cell (101, 1406) arranged liquid separator (107, 108), wherein in a cathode circuit (113) between a cathode (102) and a mixer (110) of the liquid separator (108) is arranged and in an anode circuit as degasser the liquid separator (107) is arranged between an anode (103) and the mixer (110), the liquid separator (108) having at least one fluid guide channel (201, 301) with a fluid guide channel inner wall (205, 309). a fluid guide channel inlet (203, 303) and a fluid guide channel outlet (306) for guiding a multiphase mixture of at least two immiscible fluids; and at least one fluid discharge channel (204, 302, 502) extending from the fluid guide channel (201, 301) having a fluid discharge channel inner wall and a Flüssigkeitsabführkanalauslass (310) for discharging liquid t of the multiphase mixture, and wherein an inflow of fluid guided in the fluid guide channel (201, 301) into the Flüssigkeitsabführkanal (204, 302, 502) is effected by means of capillary forces and in this case in the Flüssigkeitsabführkanal (204, 302, 502) portion removed the fluid passing through the fluid guide channel (201, 301) is adjustable by changing at least one of the fluid guide channel inlet, the fluid guide channel outlet (306), or the liquid outlet channel outlet (310), and wherein a sensorless feed-forward control for liquid separation is implemented, that the temperature of the liquid separator is fixable.