Results 41 to 50 of about 15,260 (296)

Study of in-flight and impact dynamics of non-spherical particles from HVOF guns [PDF]

open access: yes, 2009
High velocity oxygen fuel thermal spray has been widely used to deposit hard composite materials such as WC-Co powders for wear-resistant applications. Unlike gas atomized spherical powders, WC-CO powders form a more complex geometry.
Gu, Sai, S. Gu, Kamnis, S., S. Kamnis
core   +1 more source

Ultrathin Li Metal Anodes: Quantitative Design Principles and Manufacturability Across Liquid and Solid‐State Batteries

open access: yesAdvanced Materials, EarlyView.
Ultrathin lithium metal anodes (≤15 µm) offer a promising route to high‐energy‐density batteries due to their high capacity and low potential. This review presents design principles for ultrathin Li, evaluates fabrication strategies, and discusses challenges in liquid and solid‐state cells.
Cheng Wang   +9 more
wiley   +1 more source

Numerical Study on Liquid Fuel Spray Behavior in Turbulent Flames Using LES

open access: yesJournal of Thermal Science and Technology, 2009
In the present study, Large-Eddy Simulation (LES) modeling for turbulent spray combustion flows has been developed in conjunction with the Eulerian/Lagrangian method for the gas phase and dispersed phase representation and flamelet approach for ...
Yuichi ITOH, Nobuyuki OSHIMA
doaj   +1 more source

Study of Visualization Experiment on the Influence of Injector Nozzle Diameter on Diesel Engine Spray Ignition and Combustion Characteristics

open access: yesEnergies, 2020
The elementary research of spray and combustion is of great significance to the development of compactness of modern diesel engines. In this paper, three injectors with different nozzle orifice diameters (0.23 mm, 0.27 mm and 0.31 mm) were used to study ...
Yuanzhi Tang   +6 more
doaj   +1 more source

Are the available data from laboratory spray burners suitable for CFD modelling validations? A review

open access: yesEnergy Conversion and Management: X, 2022
A systematic compilation and evaluation of turbulent spray flame combustion data acquired from lab-scale spray-burners and CFD models validated with these are presented.
A.V. Brito Lopes, N. Emekwuru, K. Joshi
doaj   +1 more source

Fundamental studies of combustion of droplet and vapour mixtures [PDF]

open access: yes, 2010
There are few experimental data of a fundamental nature that clearly demonstrate the similarities and differences in burning rates between single phase and two phase combustion, either in laminar or turbulent conditions. Such data are essential towards a
Saat, Aminuddin
core  

High Free‐Volume Imidazole‐Based Ionomers for High‐Temperature Proton Exchange Membrane Fuel Cells

open access: yesAdvanced Science, EarlyView.
High free‐volume imidazole‐based ionomers (PF4IM‐72) enable enhanced phosphoric acid uptake and efficient proton transport, delivering peak power densities of 0.645 W cm−2 at 160 °C and 0.838 W cm−2 at 200 °C in HT‐PEMFCs. This work highlights a promising platform for next‐generation ionomers with improved high‐temperature performance and stability ...
Ge Chao   +7 more
wiley   +1 more source

Study experimental of flame-spread rate and spread limit distance of bio-solar droplets in microgravity combustion

open access: yesMATEC Web of Conferences, 2018
The most important issues in spray combustion science are how to understand the mechanism of the combustion of liquid fuel spray, especially in the flame-spread phenomenon.
Fitriana Laila   +11 more
doaj   +1 more source

Unveiling a Hidden Conversion Pathway in CoSe2 Anodes via Rationally Designed CNT‐Interwoven Hollow Carbon Microclusters for High‐Performance Potassium‐Ion Batteries

open access: yesAdvanced Science, EarlyView.
A rational architectural design of hierarchical, CNT‐interwoven hollow carbon microclusters unlocks and stabilizes a unique monoclinic Co3Se4‐mediated conversion–insertion pathway for potassium storage. This structural confinement effectively guides the reaction kinetics and accommodates severe mechanical strain.
Ho Rim Kim   +8 more
wiley   +1 more source

Etude de la structure des flammes diphasiques dans les brûleurs aéronautiques [PDF]

open access: yes, 2013
La régulation des polluants a mené à la création de nouveaux systèmes de combustion. Le carburant étant stocké sous forme liquide, sa transformation jusqu’à sa combustion est complexe.
Hannebique, Gregory
core  

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