Results 71 to 80 of about 38,404 (248)
ChemSusChem, Volume 18, Issue 6, March 15, 2025.Sustainable hydrogen production can be obtained from hydogen‐rich biomass‐derived organic molecules through Acceptorless Dehydrogenation (AD) reactions. Glycerol and sugars are available in large quantities from industry and can be successfully used as substrates in AD protocols, in the presence of tailored, selective, easily tunable and thermally ...
Sylwia Kostera, Luca Gonsalvi
wiley +1 more source
Electrica, 2009 This paper presents a dynamic model of Fuel cell system for residential power generation. The models proposed include a fuel cell stack model, reformer model and DC/AC inverter model.
Khaled MAMMAR, Abdelkader CHAKER
doaj +2 more sources
International Journal of Electrochemical Science, 2011 Proton exchange membrane (PEM) fuel cells have attracted grate attention in recent years as a promising replacement for traditional engines. The performance of PEM fuel cells is known to be influenced by many parameters such as operation temperature and ...
M. Pérez-Page, V. Pérez-Herranz
doaj +1 more source
Acoustic‐driven surface cleaning with millimeter‐sized bubbles at translational resonance
Droplet, EarlyView.Time‐lapse visualization comparing bubble trajectories. The top panel (0 Hz) shows a bubble's linear path under no acoustic forcing, while the bottom panel (50 Hz) demonstrates the oscillatory motion induced by acoustic waves at a resonance mode. This mechanism holds promising potential for applications such as surface cleaning.
Yan Jun Lin +2 more
wiley +1 more source
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
Modular PEM Fuel Cell SCADA & Simulator System
Resources, 2015 The paper presents a Supervision, Control, Data Acquisition and Simulation (SCADA & Simulator) system that allows for real-time training in the actual operation of a modular PEM fuel cell system.
Francisca Segura, José Manuel Andújar
doaj +1 more source
THREE-DIMENSIONAL SIMULATIONS OF TRANSIENT RESPONSE OF PEM FUEL CELLS [PDF]
, 2007 Transients have utmost importance in the lifetime and performance degradation of PEM fuel cells. Recent studies show that cyclic transients can induce hygro-thermal fatigue.
Yesilyurt, Serhat, Yeşilyurt, Serhat
core +2 more sources
Achievement of Transition Metal Chalcogenides/Oxides in Hydrogen Production by Seawater Electrolysis
EcoEnergy, EarlyView.Transition metal chalcogenides (TMCs)/oxides have shown great application potential in seawater splitting for hydrogen generation due to their adjustable electronic properties, abundant active sites, and excellent catalytic performance. ABSTRACT Under the impetus of global “dual carbon” goals, green hydrogen has become a key component of the future ...
Xiaohui Du, Xinyu Li, Jianna Li, Tao Sun
wiley +1 more source
On-line Tracking of Fuel Cell System Impedance Using Extended Kalman Filter
Chemical Engineering Transactions, 2013 This paper presents a new measurement equipment and computational method for on-line estimation and tracking of PEM fuel cell system impedance. The algorithm is developed to address one of the main issues influencing the reliability and durability of PEM
A. Debenjak, M. Gasperin, J. Petrovcic
doaj +1 more source
Perspectives on the design and use of direct alcohol fuel cells fed by alcohol blends [PDF]
, 2011 The fast-growing power demand by portable electronic devices has promoted the increase of global production of portable PEM fuel cell, a quarter of them consist of direct methanol fuel cell (DMFC) units.
Leo Mena, Teresa de Jesus +3 more
core