Results 71 to 80 of about 352,442 (309)
Energies, 2020 Portable power sources have attracted increasing interest and attention, with a focus on the reduction of the system volume. Thus, portable power sources often use polymer electrolyte fuel cell (PEFC) systems with dead-ended operation—which are ...
Myo-Eun Kim, Young-Jun Sohn
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Fuel Cell Performance Augmentation: Gas Flow Channel Design for Fuel Optimization
Fluid Dynamics & Materials Processing, 2009 The effects of gas flow channel design were studied experimentally for increasing fuel cell performance and fuel optimization. Three types of gas flow channels (serpentine, straight and interdigitated) were designed on the basis of water flooding due to electrochemical reactions, electro-osmotic drag, etc.
A. B. Mahmud Hasan, S.M. Guo, M.A. Wahab
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Advanced Functional Materials, EarlyView.This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari +4 more
wiley +1 more source
Yuanzineng kexue jishu, 2022 Annular fuel is a new type of fuel used in pressurized water reactor. The fuel pellets are annular shape and loaded between internal and external cladding.
HU Liqiang;SHI Baolei;TIAN Zihao;JI Songtao;YANG Lixin;YANG Shihao;HE Xiaojun
doaj
, 1978 A heat exchanger, as exemplified by a rocket combustion chamber, is constructed by stacking thin metal rings having microsized openings therein at selective locations to form cooling passages defined by an inner wall, an outer wall and fins.
Sokolowski, D. E.
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Entropy generation analysisfor the design optimizationof solid oxide fuel cells [PDF]
, 2011 Purpose - The aim of this paper is to investigate performance improvements of a monolithic solid oxide fuel cell geometry through an entropy generation analysis.
Sciacovelli, Adriano, Verda, Vittorio
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Advanced Functional Materials, EarlyView.High‐energy electron impact in plasma catalysis often causes excessive dissociation of active intermediates, limiting C2+ product selectivity. To address this challenge, a bio‐inspired stoma‐shell nanoarchitecture is designed to decouple electron impact from catalytic reaction zones.
Nan Zou +5 more
wiley +1 more source
Estimation of Fuel Channel Inlet Flow Rate by Noise Analysis [PDF]
Journal of Nuclear Science and Technology, 1980 Estimation of fuel channel inlet flow rate was performed, based upon the measurement of the void propagation time between two vertically placed neutron detectors in a BWR core. The procedure of estimation is as follows. First, the time of void propagation between two vertically placed neutron detectors is measured by the cross correlation method. Next,
Norio NAITO +3 more
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Adaptive online parameter estimation algorithm of PEM fuel cells [PDF]
, 2019 Since most of fuel cell models are generally nonlinearly parameterized functions, existing modeling techniques rely on the optimization approaches and impose heavy computational costs.
Costa Castelló, Ramon +2 more
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From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts
Advanced Functional Materials, EarlyView.Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado +6 more
wiley +1 more source