Abstract
Water management is very important in the development of the Polymer Electrolyte Fuel Cells (PEFC) with high performance and high reliability. Experimental and three-dimensional numerical studies have been done for the different type of flow passages of the PEFC. It is found that the separator rib plays as the covering to reduce the escape of water from the GDL to the channel. The moisturizing effect in the straight-type channel is better than that in the serpentine-type channels, but the draining effect in the serpentine-type channel is better than that in the straight-type channel.
