Yang, J; Ma, X; Lei, T; Luo, KH; Shuai, S; (2019) Numerical simulations for optimizing the liquid water transport in the gas diffusion layer and gas channels of a PEMFC. Qinghua Daxue Xuebao/Journal of Tsinghua University , 59 (7) pp. 580-586. 10.16511/j.cnki.qhdxxb.2019.26.013.

Text Luo 2019 J Tsinghua PEMFC.pdf - Published Version Download (1MB)

Abstract

The multiple-relation-time (MRT) lattice Boltzmann method with a high-density-ratio two-phase model was used to simulate liquid water transport in the gas diffusion layer (GDL) and gas channels of a high-current-density fuel cell. The results show the effects of Reynolds number, perforation shapes and locations in the GDL and the angles of the wave-like gas channels on the water transport. The results show that the GDL and the gas channels should be optimized together to improve the water removal rate. In addition, the results show that the water begins running out of the GDL at earlier times as the Reynolds number increases with the times not related to the wave-like gas channel angle or the perforation shape or location. The structural optimization of the perforated GDL and the wave-like gas channels can guide future designs of fuel cells with high current densities.

Download activity - last month

Export as JSONCSVXML

Download activity - last 12 months

Export as JSONCSVXML

Downloads by country - last 12 months

Export as CSVXMLJSON

Archive Staff Only

View Item