Results 171 to 180 of about 25,227 (196)
Some of the next articles are maybe not open access.
ECS Meeting Abstracts
Target of the presented work is to determine absolute values of GDL parameters with high accuracy, analysing and avoiding error sources caused by both test equipment and measurement methodology to the highest possible extent. The focus is on electrical, thermal and gas transport. Error sources are examined and identified.
Theresa Uhlemayr, Matthias Messerschmidt
openaire +1 more source
Target of the presented work is to determine absolute values of GDL parameters with high accuracy, analysing and avoiding error sources caused by both test equipment and measurement methodology to the highest possible extent. The focus is on electrical, thermal and gas transport. Error sources are examined and identified.
Theresa Uhlemayr, Matthias Messerschmidt
openaire +1 more source
Revisiting the Gas Diffusion Layer Water Inventory - from Micro to Macro Scale for Modern GDLs
ECS Meeting AbstractsSignificant progress has been made over the last decade in improving Polymer Electrolyte Membrane fuel cells (PEMFC), resulting in usable current densities of up to 3.0 A/cm². Specifically for high current density values, it is important to maintain a well-balanced water inventory inside the fuel cell, particularly within the GDL, to prevent ...
Lukas Koenig +4 more
openaire +1 more source
, 2021
Droplet dynamic behaviors in a gas flow channel (GFC) of proton exchange membrane fuel cell (PEMFC) with gas diffusion layer (GDL) of various wettabilities are observed by using the volume of fluid (VOF) method in this work.
Yulin Wang +6 more
semanticscholar +1 more source
Droplet dynamic behaviors in a gas flow channel (GFC) of proton exchange membrane fuel cell (PEMFC) with gas diffusion layer (GDL) of various wettabilities are observed by using the volume of fluid (VOF) method in this work.
Yulin Wang +6 more
semanticscholar +1 more source
Journal of Power Sources, 2008
A two-dimensional two-phase model is used to analyze the effects of anisotropic electrical resistivity on current density and temperature distribution in a PEM fuel cell. It is observed that a higher in-plane electrical resistivity of the gas diffusion layer (GDL) adversely affects the current density in the region adjacent to the gas channel and ...
Chaitanya J. Bapat, Stefan T. Thynell
openaire +1 more source
A two-dimensional two-phase model is used to analyze the effects of anisotropic electrical resistivity on current density and temperature distribution in a PEM fuel cell. It is observed that a higher in-plane electrical resistivity of the gas diffusion layer (GDL) adversely affects the current density in the region adjacent to the gas channel and ...
Chaitanya J. Bapat, Stefan T. Thynell
openaire +1 more source
Volume 6A: Energy, 2018
Liquid water management is critical for Proton Exchange Membrane (PEM) fuel cell operation, as excessive humidity can lead to flooding and cell performance degradation. Water is produced in the cathode catalyst layer during the electrochemical reaction.
Jingru Benner +2 more
openaire +1 more source
Liquid water management is critical for Proton Exchange Membrane (PEM) fuel cell operation, as excessive humidity can lead to flooding and cell performance degradation. Water is produced in the cathode catalyst layer during the electrochemical reaction.
Jingru Benner +2 more
openaire +1 more source
ECS Meeting Abstracts
At electrical TP-resistance measurements of PEMFC GDLs often the separation of bulk and contact resistance is of interest. There are two possibilities for this task: 2-pole measurement with stacking of GDLs and 4-pole measurement with two non current conductive poles for pure voltage measurement.
Lukas Koenig, Matthias Messerschmidt
openaire +1 more source
At electrical TP-resistance measurements of PEMFC GDLs often the separation of bulk and contact resistance is of interest. There are two possibilities for this task: 2-pole measurement with stacking of GDLs and 4-pole measurement with two non current conductive poles for pure voltage measurement.
Lukas Koenig, Matthias Messerschmidt
openaire +1 more source
Study on Gas Transport Performance in Perforated Gas Diffusion Layer by Lattice Boltzmann Method
Transport in Porous Media, 2022Ziheng Jiang +10 more
semanticscholar +1 more source
Effects of gas diffusion layer (GDL) and micro porous layer (MPL) on cathode performance in microbia
, 2011C. Santoro +3 more
semanticscholar +1 more source
Préparation, caractérisation et modélisation de fibres carbonnées par électrofilage comme couche de diffusion des gaz (GDL) pour pile à combustible PEMFC Les piles à combustible PEMFC représentent l'avenir des véhicules électriques lourds.
openaire +1 more source
openaire +1 more source