Mass Transport Phenomena in Proton Exchange Membrane Fuel Cells Using  O 2 / He ,  O 2 / Ar , and  O 2 /  N 2 Mixtures: I . Experimental Analysis

1994 ◽  
Vol 141 (8) ◽  
pp. 2084-2089 ◽  
Author(s):  
Yong Woo Rho ◽  
Omourtag A. Velev ◽  
Supramaniam Srinivasan ◽  
Young Tai Kho
Keyword(s):  
Fuel Cells ◽  
Mass Transport ◽  
Experimental Analysis ◽  
Proton Exchange Membrane ◽  
Transport Phenomena ◽  
Proton Exchange ◽  
Exchange Membrane

Computational Modelling and Simulation of Proton-Exchange Membrane Fuel Cells (Keynote)

2002 ◽  
Author(s):  
N. Djilali ◽  
T. Berning
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Transport Phenomena ◽  
Computational Modelling ◽  
Ambient Air ◽  
Gas Diffusion ◽  
Transport Processes ◽  
Proton Exchange ◽  
Exchange Membrane

Fuel cells (FC’s) are electrochemical devices that convert directly into electricity the chemical energy of reaction of a fuel (usually hydrogen) with an oxidant (usually oxygen from ambient air). The only by-products in a hydrogen fuel cell are heat and water, making this emerging technology the leading candidate for quiet, zero emission energy production. Several types of fuel cell are currently undergoing intense research and development for applications ranging from portable electronics and appliances to residential power generation and transportation. The focus of this lecture is Proton-Exchange Membrane Fuel Cells (PEMFC’s). An electrolyte consisting of a “solid” polymer membrane, low operating temperatures (typically below 90 °C) and a relatively simple design combine to make PEMFC’s particularly well suited to automotive and portable applications. The operation of a fuel cell relies on electrochemical reactions and an array of coupled transport phenomena, including multi-component gas flow, two phase-flow, heat and mass transfer, phase change and transport of charged species. The transport processes take place in variety of media, including porous gas diffusion electrodes and polymer membranes. The fuel cell environment makes it impossible to measure in-situ the quantities of interest to understand and quantify these phenomena, and computational modelling and simulations are therefore poised to play a central role in the development and optimization of fuel cell technology. We provide an overview of the role of various transport phenomena in fuel cell operation and some of the physical and computational modelling challenges they present. The processes will be illustrated through examples of multi-dimensional numerical simulations of Proton-Exchange Membrane Fuel Cells. We close with a perspective on some of the many remaining challenges and future development opportunities.

Mass Transport through a Proton Exchange Membrane (Nafion) in Microbial Fuel Cells†

2008 ◽  
Vol 22 (1) ◽  
pp. 169-176 ◽  
Author(s):  
Kyu Jung Chae ◽  
Mijin Choi ◽  
Folusho F. Ajayi ◽  
Wooshin Park ◽  
In Seop Chang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Mass Transport ◽  
Microbial Fuel Cells ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Exchange Membrane

Transport Phenomena Analysis in Proton Exchange Membrane Fuel Cells

2005 ◽  
Vol 127 (12) ◽  
pp. 1363-1379 ◽  
Author(s):  
Hongtan Liu ◽  
Tianhong Zhou ◽  
Ping Cheng
Keyword(s):  
Experimental Investigation ◽  
Fuel Cells ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Transport Phenomena ◽  
Experimental Studies ◽  
Theoretical Models ◽  
Transport Processes ◽  
Proton Exchange ◽  
Exchange Membrane

The objective of this review is to provide a summary of modeling and experimental research efforts on transport phenomena in proton exchange membrane fuel cells (PEMFCs). Several representative PEMFC models and experimental studies in macro and micro PEMFCs are selected for discussion. No attempt is made to examine all the models or experimental studies, but rather the focus is to elucidate the macro-homogeneous modeling methodologies and representative experimental results. Since the transport phenomena are different in different regions of a fuel cell, fundamental phenomena in each region are first reviewed. This is followed by the presentation of various theoretical models on these transport processes in PEMFCs. Finally, experimental investigation on the cell performance of macro and micro PEMFC and DMFC is briefly presented.

Fe–N–C electrocatalyst with dense active sites and efficient mass transport for high-performance proton exchange membrane fuel cells

2019 ◽  
Vol 2 (3) ◽  
pp. 259-268 ◽  
Author(s):  
Xin Wan ◽  
Xiaofang Liu ◽  
Yongcheng Li ◽  
Ronghai Yu ◽  
Lirong Zheng ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Mass Transport ◽  
Active Sites ◽  
High Performance ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Exchange Membrane

Development of an Oxygen Mass Transport Coefficient Measurement and Separation Method for Proton Exchange Membrane Fuel Cells

2020 ◽  
Vol 98 (9) ◽  
pp. 153-162
Author(s):  
Lena Viviane Buehre ◽  
Michel Suermann ◽  
Richard Hanke-Rauschenbach ◽  
Boris Bensmann ◽  
Keith Bethune ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Mass Transport ◽  
Transport Coefficient ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Separation Method ◽  
Coefficient Measurement ◽  
Exchange Membrane ◽  
Mass Transport Coefficient
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