Can I read Behavior of current distribution evolution under reactant starvation conditions based on a single polymer electrolyte membrane fuel cell (PEMFC) with triple-serpentine flow field: An experimental study on EtoBox?

Behavior of current distribution evolution under reactant starvation conditions based on a single polymer electrolyte membrane fuel cell (PEMFC) with triple-serpentine flow field: An experimental study by Zhifeng Xia; Huicui Chen; Wanchao Shan; Ruirui Zhang; Tong Zhang; Pucheng Pei is a Engineering article available to read on EtoBox.

What is Behavior of current distribution evolution under reactant starvation conditions based on a single polymer electrolyte membrane fuel cell (PEMFC) with triple-serpentine flow field: An experimental study about?

Reactant starvation is unfavorable to the durability and life extension of PEMFC engines. In this paper, a 25 cm2 segmented PEMFC is assembled to investigate starvation phenomenon, and the contour maps of current distribution are given to analyze the reactant starvation mechanism. The experimental results prove the high-quality homogeneity of current with triple-serpentine configuration even under starvation conditions. The air starvation experiments suggest the migration of lowest current region and the variation trend of standard deviation with the increasing of stoichiometry. The survival time increases with the anode stoichiometry, and the current density of anode downstream constantly increases with the reversal of cell, reflecting severe hydrogen starvation in these local areas. It is concluded ORR dominates the specific current distribution rather than any other electrochemical reactions. This study sheds the light of improving the lifespan and potential large-scale commercialization realization of PEMFC engines.

Who reads Behavior of current distribution evolution under reactant starvation conditions based on a single polymer electrolyte membrane fuel cell (PEMFC) with triple-serpentine flow field: An experimental study?

Author

Zhifeng Xia; Huicui Chen; Wanchao Shan; Ruirui Zhang; Tong Zhang; Pucheng Pei

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)