...Diankai Qiu; Zhutian Xu; Heng Shao; Linfa Peng Water management is of significant importance to achieving high performance of proton exchange membrane fuel cells. In recent years, droplets emerged from the rib surface and accumulated at the channel corner have been found to be a crucial part...

...Yaochen Wang; Hongjuan Ren; Cong Li We developed a three-dimensional multiphysics numerical model of a proton exchange membrane fuel cell (PEMFC) with a cathode mesh structure to investigate how coolant flowrate and temperature impact its performance. After experimentally validating the model, we...

...Yanbo Yang; Tiancai Ma; Fenglai Pei; Weikang Lin; Kai Wang; Boyu Du The constant voltage cold start of the proton exchange membrane fuel cell (PEMFC) is usually operated at a low start-voltage in order to ensure high heat generation, which can shorten the process of the PEMFC cold start. However...

...Tiancai Ma; Zhaoli Zhang; Weikang Lin; Yanbo Yang; Naiyuan Yao Reliability and durability are the main factors that hinder the large-scale commercialization of proton exchange membrane fuel cell (PEMFC). Water management is the key to solve such problems, and water content is the measurement...

... companies, research institutes, and universities are developing proton exchange membrane fuel cell (PEMFC) and solid oxide fuel cell (SOFC)-related technologies. A preliminary local supplier chain of fuel cell-related technology has been formed. However, the lifetime is still a key issue for the fuel cell...

...Younés Faydi; Remy Lachat; Philippe Lesage; Yann Meyer In a proton exchange membrane fuel cell (PEMFC), gas diffusion layers (GDLs) play a major role in the overall system performances. This is the reason why many research investigations try to model and optimize the GDL physical properties...

... of a proton exchange membrane fuel cell stack. The end-effector is capable of handling a variety of fuel cell components including membrane electrode assemblies, bipolar plates and gaskets using vacuum cups mounted on level compensators and connected to a miniature vacuum pump. The end-effector and the fuel...

... density of fuel cell decreased larger and larger with increase of Mg 2+ concentration over time. The Mg 2+ mainly caused the concentration polarization loss from the anode catalyst to the membrane in fuel cell. contamination ion magnesium Mg2+ performance proton exchange membrane fuel cell...

... online October 22, 2013. Assoc. Editor: Masashi Mori. 16 01 2013 24 07 2013 A hybrid system that combines a solid oxide fuel cell (SOFC) with a proton exchange membrane fuel cell (PEMFC) is presented in this paper. The SOFC stack acts as both an electricity producer and the fuel...

...N. Akhtar; P. J. A. M. Kerkhof The role of gas diffusion media with differently structured properties have been examined with emphasis on the liquid water saturation within the cathode of a proton exchange membrane fuel cell (PEMFC). The cathode electrode consists of a gas diffusion layer (GDL...

...Chiun-Hsun Chen; Chang-Hsin Chen; Tang-Yuan Chen This study numerically investigates how the geometry of flow pattern influences performance of proton exchange membrane fuel cell (PEMFC), and analyzes how these parameters lead to different distributions of model variables. The investigation focuses...

... , Z. , 2005 , “ Water Behavior in Serpentine Micro-Channel for Proton Exchange Membrane Fuel Cell Cathode ,” J. Power Sources 0378-7753 , 152 , pp. 131 – 145 . 10.1016/j.jpowsour.2005.02.075 Suo , M. , and Griffith , P. , 1964 , “ Two-Phase Flow in Capillary Tubes ,” ASME J...

...Peiyun Yi; Linfa Peng; Xinmin Lai; Jun Ni Gas diffusion layer (GDL) is one of the critical components in proton exchange membrane fuel cells (PEMFCs) and plays several important roles, such as structural support, reactants permeation, water removal, electrons, and heat conduction. The assembly...

... by adjusting the liquid water saturation at the interface of the cathode gas diffusion layer and flow channels. channel flow diffusion electrochemical electrodes numerical analysis proton exchange membrane fuel cells proton exchange membrane fuel cell membrane electrolyte assembly water...

... cells is the feeding of the electrode with reactants and the removal of products. proton exchange membrane fuel cell air-breathing cathode porous transports chemically reactive flow current density electrochemical electrodes finite element analysis mass transfer orifices...

... the growing energy demand of a mobile workforce, the fuel cell has a great opportunity to become a better portable energy source. portable cylindrical stack flat stack direct methanol fuel cell proton exchange membrane fuel cell anodes catalysts cathodes direct methanol fuel cells...

... at the interface with the GDL. Models based on the two-phase mixture model are not applicable to PEM fuel cell electrodes. 24 07 2007 29 08 2007 11 04 2008 catalysts computational fluid dynamics electrochemical electrodes proton exchange membrane fuel cells proton exchange membrane...

.... , Wilson , M. , Garzon , F. , and Walker , L. R. , 2004 , “ Preferential Thermal Nitridation to Form Pin-hole Free Cr-nitrides to Protect Proton Exchange Membrane Fuel Cell Metallic Bipolar Plates ,” Scr. Mater. 1359-6462 50 , pp. 1017 – 1022 . Wind , J. , Spah , R...