Results 61 to 70 of about 2,978 (240)
Lógica borrosa para la estimación de estados críticos de una pila de combustible PEM
Maskana, 2016 RESUMEN La determinación en tiempo real de los estados críticos de operación de la pila de combustible de membrana intercambio protónico (siglas en ingles, PEM) es uno de los principales retos para los sistemas de control de pilas de combustible PEM ...
Wilton E. Agila, Víctor M. Huilcapi
doaj
Analysis of the Coupling Behavior of PEM Fuel Cells and DC-DC Converters
Energies, 2009 The connection between PEM fuel cells and common DC-DC converters is examined. The analysis is model-based and done for boost, buck and buck-boost converters. In a first step, the effect of the converter ripples upon the PEM fuel cell is shown.
Achim Kienle +2 more
doaj +1 more source
Advanced Energy Materials, EarlyView.Direct seawater electrolysis using anion exchange membranes is emerging as a promising route for sustainable hydrogen production. This review summarizes multiscale design strategies from seawater chemistry and OER–ClER selectivity to catalysts, membranes, MEAs, cells, stacks, and system integration, providing a roadmap toward selective, durable, and ...
Chiho Kim +7 more
wiley +1 more source
Design Principles of Electrocatalysts for Industrial‐Scale Water Electrolysis
Advanced Energy Materials, EarlyView.This Review distills electrocatalyst design for industrial‐scale water electrolysis into integrated principles linking active‐site engineering, phase and lattice modulation, interfacial microenvironment regulation and mass‐transport control. By connecting catalyst families with HER/OER mechanisms and practical operating demands, it outlines pathways ...
Hong Tang, Cui Ce, John Wang
wiley +1 more source
Steady-State Modeling of Fuel Cells Based on Atom Search Optimizer
Energies, 2019 In simulation studies, the precision of fuel cell models has a vital role in the quality of results. Unfortunately, due to the shortage of manufacturer data given in the datasheets, several unknown parameters should be defined to establish the fuel cell ...
Ahmed M. Agwa +2 more
doaj +1 more source
Advanced Energy Materials, EarlyView.We demonstrate how improved electrochemical performance during water electrolysis is achieved when a porous transport electrode (PTE) is coupled with a traditional catalyst coated membrane (CCM). Using operando neutron radiography, a more homogenous water distribution near the catalyst layer‐membrane interface is revealed in PTE‐based designs due to ...
Tess Seip +8 more
wiley +1 more source
MATEC Web of Conferences, 2018 Design of the Proton Exchange Membrane (PEM) fuel cell system is still developed and improved to achieve performance and efficiency optimal. Improvement of PEM fuel cell performance can be achieved by knowing the effect of system parameters based on ...
Mulyazmi +3 more
doaj +1 more source
Energies, 2019 Flow field plays an important role in the performance of proton exchange membrane (PEM) fuel cells, such as transporting reactants and removing water products.
Xuyang Zhang +3 more
doaj +1 more source
PERFORMANCE AND SIZING OF PEM FUEL CELLS UNDER VARIABLE OPERATING CONDITIONS FOR AN AUTONOMOUS UNDERWATER VEHICLE [PDF]
Scientific Journal of Silesian University of Technology. Series TransportEnsuring a reliable power supply is a key challenge for autonomous underwater vehicles (AUVs), especially when deeper diving, longer endurance, and extended mission range are required.
Ali ELMAIHY, Mohamed ABD El-LATIF
doaj +1 more source
Comparison of Pt/C Electrocatalyst Deposition Methods for PEM Fuel Cells
Chemical Engineering Transactions, 2018 In recent years, in order to solve the environmental problems associated with electricity production, alternative systems to traditional methods have been developed.
Vincenzo Palma +3 more
doaj +1 more source