Results 81 to 90 of about 352,442 (309)

The effect of inclined radial flow in proton exchange membrane fuel cells performance [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2014
Computational fluid dynamics analysis was employed to investigate the radial flow field patterns of proton exchange membrane fuel cells (PEMFC) with different channel geometries at high operating current densities. 3D, non-isothermal was used with single
Ashkan torkavannejad   +2 more
doaj   +1 more source

Graphite core brick crack detection through automated load trace analysis [PDF]

open access: yes, 2004
This presentation looks at graphite core brick crack detection through automated load trace ...
Ballantyne, Andrew   +5 more
core  

Influence of gas compression on flame acceleration in the early stage of burning in tubes

open access: yes, 2012
The mechanism of finger flame acceleration at the early stage of burning in tubes was studied experimentally by Clanet and Searby [Combust. Flame 105: 225 (1996)] for slow propane-air flames, and elucidated analytically and computationally by Bychkov et ...
Akkerman, V'yacheslav   +5 more
core   +1 more source

Tuning the Selectivity of the CO2 Reduction Reaction by Means of Synergistic Interactions in the Cu, Ag, Ce System

open access: yesAdvanced Functional Materials, EarlyView.
Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang   +9 more
wiley   +1 more source

Micro Thermocouple and Voltage Sensor for Fuel Cell Real Time Interior Monitoring

open access: yesInternational Journal of Electrochemical Science, 2014
The temperature and voltage distribution in membrane electrode assembly (MEA) importantly affect the performance of fuel cell. Conventional methods can only get the interior information of fuel cell by modeling or invasive measurement.
Chi-Yuan Lee   +3 more
doaj   +1 more source

Data mining reactor fuel grab load trace data to support nuclear core condition monitoring [PDF]

open access: yes, 2006
A critical component of an advanced-gas cooled reactor (AGR) station is the graphite core. As a station ages, the graphite bricks that comprise the core can distort and may eventually crack.
Jahn, G.J.   +4 more
core   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

A 3D Simulation of Single-Channel High-Temperature Polymer Exchange Membrane Fuel Cell Performances

open access: yesApplied Sciences, 2019
The fuel cell is an electrochemical energy converter that directly converts the chemical energy of the fuel into electrical current and heat. The fuel cell has been able to identify itself as a source of clean energy over the past few decades.
Mohammad Yaghoub Abdollahzadeh Jamalabadi   +6 more
doaj   +1 more source

Corrections of Voltage Loss in Hydrogen-Oxygen Fuel Cells

open access: yesBatteries, 2020
Normally, the Nernst voltage calculated from the concentration of the reaction gas in the flow channel is considered to be the ideal voltage (reversible voltage) of the hydrogen-oxygen fuel cell.
Jinzhe Lyu   +2 more
doaj   +1 more source

High resolution fire hazard index based on satellite images [PDF]

open access: yes, 2019
In December 2015, after 3 year of activity, the FP7 project PREFER (Space-based Information Support for Prevention and REcovery of Forest Fires Emergency in the MediteRranean Area) came to an end.
Fusilli, Lorenzo, Laneve, Giovanni
core   +1 more source

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