Novel biometric flow slab design for improvement of PEMFC performance

Designing a better flow slab is important to cell performance because of its significant influence on the total pressure drop and flow uniformity. Two novel biometric flow slabs, BFF1 and BFF2, which are addressed in this study, are believed to enhance the capability of oxygen transportation and promote the liquid water removal. Hence, its possession of a higher flow uniformity and lower pressure drop would produce a better power performance than the serpentine and parallel flow. These findings with respect to the design of bionnetric flow slab could be useful to promote the cell performance of PEMFC, and could even be expanded to other cell types. (C) 2009 Elsevier Ltd. All rights reserved.