Results 211 to 220 of about 1,945 (252)

ON THE RISE VELOCITY OF SLUGS IN FLUIDIZED BEDS

Chemical Engineering Communications, 1983
Abstract A quantitative description of non-uniform, dilute-phase, volume fraction and superficial velocity in two-phase, bubble-slug-flow, fluidized beds is presented. The appropriate expression for absolute slug velocity is where the distribution coefficient, Co takes on a value of 1.20, and ūs is a weighted-mean value over the bed cross-section. Only
ALAN W. WEIMER, DAVID E. CLOUGH
openaire   +1 more source

Measurements of translational slug velocity and slug length using an image processing technique

Flow Measurement and Instrumentation, 2016
Abstract Slug flow is a common flow regime that occurs in various industries, such as oil, gas, and power generation industries. In this study, the mean slug translational velocity and slug liquid length were measured using Phantom 9.2 software and an image processing analysis technique. The adopted image processing technique involved the analysis of
Abdalellah O. Mohmmed, Mohammad S. Nasif, Hussain H. Al-Kayiem, Rune W. Time   +3 more
openaire   +1 more source

New method for bubble/slug velocity measurement in small channels

Review of Scientific Instruments, 2020
Based on the C4D technique and cross correlation velocity measurement technique, a new method for bubble/slug velocity measurement of the gas–liquid two-phase flow in small channels is proposed. A new C4D sensor, which is suitable for the parameter measurement of the gas–liquid two-phase flow in small channels, is developed by introducing the principle
Xiao-Yu Tang, Junchao Huang, Haifeng Ji, Baoliang Wang, Zhiyao Huang   +4 more
openaire   +2 more sources

Liquid velocity distribution in slug flow in a microchannel

Microfluidics and Nanofluidics, 2011
The liquid velocity distributions in two-phase slug flows in a nearly rectangular microchannel etched on a microfluidic chip were investigated using a three-dimensional tracking method for submicron fluorescent particles seeded in the working liquid (water).
Rui Luo, Ling Wang
openaire   +1 more source

On the kinematics of horizontal slug flow pneumatic conveying and the relationship between slug length, porosity, velocities and stationary layers

Powder Technology, 2019
Abstract This paper focusses specifically on the topic of slug velocity and the definitions and origins of the various velocities observed within horizontal slug flow pneumatic conveying. Testing was conducted and measurement of slug particle velocity and wave front and rear velocities confirmed existing observations in the literature that the slug ...
Ognjen Orozović, A Lavrinec, M G Jones
exaly   +2 more sources

Correlation of liquid slug velocity and frequency in horizontal cocurrent gas‐liquid slug flow

AIChE Journal, 1969
AbstractNo Abstracts.
G. A. Gregory, D. S. Scott
openaire   +1 more source

The pipeline flow of paste slugs: Part II. Pressure gradients and velocities of trains of slugs

The Canadian Journal of Chemical Engineering, 1968
AbstractPrevious studies of the pipeline movement of single paste slugs of coal have been extended to determine the velocities of, and the pressure gradients along, trains of slugs. The measurements were taken in a 70‐foot long, closed‐loop line made from 0.95‐inch bore, rigid plastic tubing.
R. A. S. Brown, E. J. Jensen
openaire   +1 more source

Production of a high-velocity water slug using an impacting technique

Review of Scientific Instruments, 2014
A pulsed water jet consists of a series of discrete water slugs travelling at high velocity. Immediately after striking a target, these slugs apply high-intensity, short-duration transient stress pulses reaching an amplitude known as the water hammer pressure, followed by low-intensity, long-duration stationary stress at a lower stagnation pressure ...
Dehkhoda, S., Bourne, N. K.
openaire   +5 more sources

The measurement of interface velocity in solid–liquid slugging fluidised beds

Experimental Thermal and Fluid Science, 2003
Abstract A new experimental apparatus based on conductivity measurements has been developed to measure liquid and solid phase volume fractions in fluidised suspensions. The device provides a measurement of the instantaneous values of volume fractions: this characteristic has been used here to estimate the velocity at which voidage discontinuities ...
CARTESEGNA M., FOSSA, MARCO, DI FELICE, RENZO   +2 more
openaire   +2 more sources

Pressure drop and slug velocity in low-velocity pneumatic conveying of bulk solids

Powder Technology, 1997
Low-velocity slug flow pneumatic conveying is being applied increasingly in industry and to a wide range of bulk solid materials. However, to date, most investigations have focused on bulk solid materials with regular shape (e.g. plastic pellets, wheat) and very little work has been undertaken with irregular-shaped materials (e.g.
R. Pan, P.W. Wypych
openaire   +1 more source