Fuel cell i.e. low-temperature fuel cell, operating method for motor vehicle, involves allowing flow of gaseous medium through gas flow path, temporarily drying medium, and guiding medium through gas drying apparatus for drying

摘要

The method involves allowing flow of gaseous medium e.g. anode gas and/or cathode gas and hydrogen, through a gas flow path, and temporarily drying the medium. The medium is guided through a gas drying apparatus (14) for drying. A drying process of the medium is accomplished in a cooling phase of a fuel cell (2) i.e. low-temperature fuel cell. Another medium is made to flow through the gas drying apparatus for regeneration in a regeneration operation. One of the mediums is preheated for regeneration of the gas drying apparatus. An independent claim is also included for a fuel cell system comprising a gas drying apparatus.