Results 201 to 210 of about 1,945 (252)

Nanoscale Oxygen Bubble Dynamics and Coupled Transport at Anode Catalyst Layer Particle Surfaces in PEM Water Electrolysis. [PDF]

ACS Omega
Xu S, Shen W, Xin L, Chen X, Huang F, Hao S, Chen B.   +6 more
europepmc   +1 more source

In This Issue. [PDF]

Proc Natl Acad Sci U S A
europepmc   +1 more source

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Rise velocities of slugs and voids in slugging and turbulent fluidized beds

Korean Journal of Chemical Engineering, 1989
Using the cross-correlation function of two pressure fluctuation signals, the rise velocities of slugs and voids and the slug frequency in the slugging and turbulent fluidized beds of glass beads(dp= 0.362 mm) have been determined in a 0.1 m-lD x 3.0 m high Plexiglas ...
Sang Done Kim
exaly   +2 more sources

Modeling of Slug Velocity and Pressure Drop in Gas-Liquid-Liquid Slug Flow [PDF]

Chemical Engineering and Technology, 2019
AbstractGas‐liquid‐liquid slug flow in a capillary reactor is a promising new concept that allows one to incorporate gas‐liquid reaction, liquid‐liquid extraction, and facile catalyst separation in a single unit. In order to assess the performance of a gas‐liquid‐liquid slug flow reactor, it is necessary to predict the slug velocity and pressure drop ...
David Agar
exaly   +3 more sources

Comprehensive experimental study of liquid-slug length and Taylor-bubble velocity in slug flow

Flow Measurement and Instrumentation, 2020
Abstract Slug flow is an intermittent two-phase flow pattern that provokes undesirable pressure variations in pipes. Mathematical models are commonly used to study these variations; so that it is necessary to know the experimental liquid-slug length, Taylor-bubble length, and pressure drop to validate such mathematical models.
O Cazarez-Candia
exaly   +2 more sources

Translational velocities of elongated bubbles in continuous slug flow [PDF]

International Journal of Multiphase Flow, 2002
Summary: The translational velocities of elongated bubbles in continuous slug flow were measured for various flow rates, pipe inclinations and pipe diameters. Measurements were carried out by cross-correlating the output signals of consecutive optical fiber probes and by image processing technique.
René van Hout, Lev Shemer, D Barnea
exaly   +2 more sources

Measurement of Slug Length and Slug Velocity in Pneumatic Conveying Using Capacitive Sensing

Particle and Particle Systems Characterization, 2007
AbstractThis paper describes a capacitive flow sensor and the development of a suitable algorithm for the determination of the slug length and the slug velocity in pneumatic dense phase conveying. The flow meter makes use of novel electrode topology. The algorithm is based on a two‐step approach using Fourier transformation.
Hubert Zangl, Anton Fuchs
exaly   +2 more sources

Statistical assessment of experimental observation on the slug body length and slug translational velocity in a horizontal pipe

International Journal of Heat and Mass Transfer, 2017
Abstract In the present paper, the flow was examined experimentally using air and water as the working fluids. Various sets of experimental data were conducted by varying the superficial velocities within ranges of 0.7–3.84 m/s and 0.7–1.33 m/s for air and water, respectively.
Hussain H Al-Kayiem, Rune Time, Abdalellah O Mohmmed   +2 more
exaly   +2 more sources

Insights into horizontal slug flow pneumatic conveying from layer fraction and slug velocity measurements

Powder Technology, 2020
The many advantages of slug flow pneumatic conveying are outweighed by the lack of understanding of the flow mechanisms. For horizontal slug flow, the unique feature is the stationary layer of material found between the travelling slugs, which was recently shown to be characterised by two constants.
Ognjen Orozović, A Lavrinec, M G Jones
exaly   +5 more sources

Velocity distribution in horizontal slug flow

International Journal of Multiphase Flow, 1984
An experimental device for measurement of the velocity distribution in a two-phase slug is developed. Velocity profiles both in the film and the liquid slug besides velocity variation along the pipe bottom (at a distance of 1 mm) through the slug front are presented.
O. Kvernvold, V. Vindøy, T. Søntvedt, A. Saasen, S. Selmer-Olsen   +4 more
openaire   +1 more source