Results 81 to 90 of about 104,071 (312)

Enhancing Bubble Removal in Geometry‐Optimized Electrodes

Advanced Engineering Materials, EarlyView.
3D‐printed lattice electrodes outperform stochastic foams in alkaline water electrolysis despite 20%–25% lower surface area. Straight flow channels generate Venturi‐like bubble entrainment, suppressing gas accumulation that renders foam interiors electrochemically inactive.
Florian Wiesner, Peter Förster, Alexander Limper, Anselm Brodersen, Matthias Wessling, John Linkhorst   +5 more
wiley   +1 more source

Comparison of cavitation bubbles evolution in viscous media

EPJ Web of Conferences, 2018
There have been tried many types of liquids with different ranges of viscosity values that have been tested to form a single cavitation bubble. The purpose of these experiments was to observe the behaviour of cavitation bubbles in media with different ...
Jasikova Darina, Schovanec Petr, Kotek Michal, Kopecky Vaclav   +3 more
doaj   +1 more source

Resonant Pulsing Frequency Effect for Much Smaller Bubble Formation with Fluidic Oscillation

Energies, 2018
Microbubbles have several applications in gas-liquid contacting operations. Conventional production of microbubbles is energetically unfavourable since surface energy required to generate the bubbles is inversely proportional to the size of the bubble ...
Pratik Devang Desai, Michael John Hines, Yassir Riaz, William B. Zimmerman   +3 more
doaj   +1 more source

Factors affecting bubble size in ionic liquids [PDF]

Physical Chemistry Chemical Physics, 2017
Bubble behaviour of 11 ionic liquids was studied and the relationship of bubble size, physical properties and structure was examined.
Sarah F. R. Taylor, Stuart A. Brittle, Pratik Desai, Johan Jacquemin, Christopher Hardacre, William A. Zimmerman   +5 more
openaire   +7 more sources

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

Study of different membrane spargers used in waste water treatment : characterisation and performance [PDF]

, 2004
In urban waste water treatment, a novel gas sparger based on flexible rubber membrane has been used for the last ten years. The objective of this present work is to compare two flexible membranes (the new membrane and the old membrane provided by ONDEO-
Buffiere, P., Hebrard, Gilles, Loubière, Karine, Buffière, Pierre, Painmanakul, Pisut   +4 more
core   +1 more source

Experimental Investigation of Bubble Generation via Gas Injection Through Submerged Needles [PDF]

Journal of Applied Fluid Mechanics
The size of bubbles is a crucial parameter in gas-liquid bubbly systems, making the investigation of bubble formation essential for effective bubble size control. The authors experimentally examined bubble generation using a high-speed video camera. They
M. J. Pang, M. H. Zhao, M. Jia
doaj   +1 more source

Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application

Advanced Engineering Materials, EarlyView.
N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang, Mayur Pole, Tingkun Liu, Kenneth A. Ross, Christopher B. Smith   +4 more
wiley   +1 more source

Inference of Bubble Size Distribution in Sediments Based on Sounding by Chirp Signals

Archives of Acoustics
A method is proposed to estimate the bubble void fraction and bubble size distribution in marine sediments based on measured sound speed and attenuation data in gas-bearing sediments.
Xiaohong YANG, Guangying ZHENG, Fangyong WANG, Fangwei ZHU, Linlang BAI   +4 more
doaj   +1 more source

Numerical Simulation of Poly-Dispersed Bubbly Flow Using a Multi-Fluid Model

Journal of Fluid Science and Technology, 2007
Numerical methods for predicting poly-dispersed bubbly flows in bubble columns are indispensable in the design of bubble column reactors. The objectives of the present study are (1) to experimentally investigate the effects of a bubble size distribution ...
Munenori MAEKAWA, Naoki SHIMADA, Akira SOU, Akio TOMIYAMA   +3 more
doaj   +1 more source