Results 81 to 90 of about 28,491 (215)
Simulation of PEMFC performance
Journal of Renewable Energies, 2023 Throughout literature, there are two approaches to estimate fuel cells (FC) performance, by the evaluation of polarization curve. One includes, physical modelling of heat and mass transfer with electrochemical phenomena; the second is based on semiempirical equation used in order to analysis the effect of different physical perturbation on the ...
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Fish Scales: A Multifunctional Biomaterial from Nature
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
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Sensors, 2018 To prolong the operating time of unmanned aerial vehicles which use proton exchange membrane fuel cells (PEMFC), the performance of PEMFC is the key. However, a long-term operation can make the Pt particles of the catalyst layer and the pollutants in the
Chi-Yuan Lee +3 more
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Forced Air-Breathing PEMFC Stacks [PDF]
International Journal of Electrochemistry, 2012 Air-breathing fuel cells have a great potential as power sources for various electronic devices. They differ from conventional fuel cells in which the cells take up oxygen from ambient air by active or passive methods. The air flow occurs through the channels due to concentration and temperature gradient between the cell and the ambient conditions ...
K. S. Dhathathreyan +3 more
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Polymer Composites, EarlyView.Schematic of the experimental workflow for evaluating the effect of different graphite fillers on the electrical, thermal, mechanical, and gas‐barrier properties of ultrathin composite foils produced via the Powder‐to‐Roll process. ABSTRACT This study systematically investigates the influence of graphite type, particle shape, and particle size on the ...
Laura Huwald +5 more
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Energies, 2020 Currently, fuel cells are increasingly used in industrial installations, means of transport, and household applications as a source of electricity and heat.
Andrzej Wilk, Daniel Węcel
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Simulation of hydrogen production for mobile fuel cell applications via autothermal reforming of methane [PDF]
, 2006 This paper presents a simulation of catalytic autothermal reforming (ATR) of methane (CH4) for hydrogen (H2) production. ATR is essentially an oxidative steam reforming, which combines the exothermic partial oxidation (PO) with the endothermic steam ...
Abd. Hamid, Mohd. Kamaruddin +3 more
core
Small, EarlyView.Density functional theory calculations and microkinetic modeling were carried out on 108 dual‐atom catalysts with varied metalmetal distances ranging from 2.2 to 3.5 Å. The results reveal that moderate spacing of around 3.0 Å promotes bridging oxygen adsorption and dissociative reduction pathways, weakens the hydroxylhydroperoxyl scaling relationship ...
Yu Mao +7 more
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Three-dimensional simulation of a new cooling strategy for proton exchange membrane fuel cell stack using a non-isothermal multiphase model [PDF]
, 2019 In this study, a new cooling strategy for a proton exchange membrane (PEM) fuel cell stack is investigated using a three-dimensional (3D) multiphase non-isothermal model.
Jiao, K, Wang, Y, Yuan, H, Zhang, G
core
Nitrogen front evolution in purged polymer electrolyte membrane fuel cell with dead-ended anode [PDF]
, 2010 In this paper, we model and experimentally verify the evolution of liquid water and nitrogen fronts along the length of the anode channel in a proton exchange membrane fuel cell operating with a dead-ended anode that is fed by dry hydrogen.
Bohac, Stanislav V. +4 more
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