The gas diffusion layer in polymer electrolyte membrane fuel cells

A process model of the two-phase flow

verfasst von

Roberto Lemoine-Nava, Richard Hanke-Rauschenbach, Michael Mangold, Kai Sundmacher

Abstract

A two-phase flow process model for the gas diffusion layer (GDL) of a polymer electrolyte membrane fuel cell, considering also the cathode catalyst layer (CL), is presented. For this purpose, a systematic analysis of the factors affecting flooding and drying, including the liquid accumulation in the gas channel (CH), was performed using a one-dimensional reference model for the GDL and a compact channel model. The treatment proposed for the CH-GDL interface was compared with other boundary conditions in the literature. It was concluded that the liquid accumulation in the channel is determinant for estimating the steady state and transient GDL flooding, but that predicting the saturation level in the CL can help for determining operation policies for precluding flooding in the GDL-CL composite, in the absence of an adequate channel model. Bifurcation behavior, associated with the water phase change, was identified by means of the compact model.

Externe Organisation(en)

Max-Planck-Institut für Dynamik komplexer technischer Systeme
Otto-von-Guericke-Universität Magdeburg

Typ

Artikel

Journal

International Journal of Hydrogen Energy

Band

2011

Seiten

1637-1653

Anzahl der Seiten

17

ISSN

0360-3199

Publikationsdatum

01.2011

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Erneuerbare Energien, Nachhaltigkeit und Umwelt, Feuerungstechnik, Physik der kondensierten Materie, Energieanlagenbau und Kraftwerkstechnik

Ziele für nachhaltige Entwicklung

SDG 7 – Erschwingliche und saubere Energie

Elektronische Version(en)

https://doi.org/10.1016/j.ijhydene.2010.10.037 (Zugang: Unbekannt)