Patent ID: 8685581
Filing Date: 2014-04-01
Classification: B64D,H01M,Y02E,Y02T

Abstract:
1. An aircraft fuel cell system having one or more components at least partially arranged in a non-pressurized portion of an aircraft in which it is installed, the system comprising: a fuel cell; an evaporative cooling system in thermal contact with the fuel cell and adapted to absorb and remove heat generated by the fuel cell during operation of the fuel cell through evaporation of a cooling medium to cool the fuel cell; a device adapted to sense a pressure in the evaporative cooling system; and a control unit adapted to adjust an operating temperature of the fuel cell in dependence on signals that are supplied to the control unit from the device for sensing the pressure in the evaporative cooling system to track a pressure-dependent evaporation curve of the cooling medium such that evaporation of the cooling medium during ascent and descent of the aircraft, is effected in a wet-steam region of the cooling medium.