Bubble size distributions for dispersed air - Water flows in a 100 mm horizontal pipeline

R. Sean Sanders; M. Mahbubur Razzaque; Jason Schaan; K. Nandakumar; Jacob H. Masliyah; Artin Afacan; Shijie Liu

doi:10.1002/cjce.5450820428

Bubble size distributions for dispersed air - Water flows in a 100 mm horizontal pipeline

R. Sean Sanders^*, M. Mahbubur Razzaque, Jason Schaan, K. Nandakumar, Jacob H. Masliyah, Artin Afacan, Shijie Liu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The bubble size distributions of air dispersed in water flowing in a 100 mm horizontal pipeline were studied. Size distributions were obtained with a high-speed digital camera at axial positions 0.5, 15.3 and 42.3 m from the air injection point. Air was injected into the pipeline through a narrow tube extending into the pipe, perpendicular to the pipe axis. The effects of average water velocity, air concentration, and injection nozzle diameter on the evolution of bubble size distribution with axial pipe position were studied. For the lowest air concentration of 0.07%, equilibrium bubble size distributions were dependent only on water velocity. Nozzle injection diameter did not affect the downstream bubble size distributions at air concentrations of 0.07% and 0.3%. Levich's break-up theory was found to over-predict the experimental d _max for each test condition.

Original language	English
Pages (from-to)	858-864
Number of pages	7
Journal	Canadian Journal of Chemical Engineering
Volume	82
Issue number	4
DOIs	https://doi.org/10.1002/cjce.5450820428
State	Published - Aug 2004
Externally published	Yes

Keywords

Air-water pipe flows
Dispersed bubble flow regime

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10.1002/cjce.5450820428

Cite this

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title = "Bubble size distributions for dispersed air - Water flows in a 100 mm horizontal pipeline",

abstract = "The bubble size distributions of air dispersed in water flowing in a 100 mm horizontal pipeline were studied. Size distributions were obtained with a high-speed digital camera at axial positions 0.5, 15.3 and 42.3 m from the air injection point. Air was injected into the pipeline through a narrow tube extending into the pipe, perpendicular to the pipe axis. The effects of average water velocity, air concentration, and injection nozzle diameter on the evolution of bubble size distribution with axial pipe position were studied. For the lowest air concentration of 0.07%, equilibrium bubble size distributions were dependent only on water velocity. Nozzle injection diameter did not affect the downstream bubble size distributions at air concentrations of 0.07% and 0.3%. Levich's break-up theory was found to over-predict the experimental d max for each test condition.",

keywords = "Air-water pipe flows, Dispersed bubble flow regime",

author = "Sanders, {R. Sean} and Razzaque, {M. Mahbubur} and Jason Schaan and K. Nandakumar and Masliyah, {Jacob H.} and Artin Afacan and Shijie Liu",

year = "2004",

month = aug,

doi = "10.1002/cjce.5450820428",

language = "英语",

volume = "82",

pages = "858--864",

journal = "Canadian Journal of Chemical Engineering",

issn = "0008-4034",

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T1 - Bubble size distributions for dispersed air - Water flows in a 100 mm horizontal pipeline

AU - Sanders, R. Sean

AU - Razzaque, M. Mahbubur

AU - Schaan, Jason

AU - Nandakumar, K.

AU - Masliyah, Jacob H.

AU - Afacan, Artin

AU - Liu, Shijie

PY - 2004/8

Y1 - 2004/8

N2 - The bubble size distributions of air dispersed in water flowing in a 100 mm horizontal pipeline were studied. Size distributions were obtained with a high-speed digital camera at axial positions 0.5, 15.3 and 42.3 m from the air injection point. Air was injected into the pipeline through a narrow tube extending into the pipe, perpendicular to the pipe axis. The effects of average water velocity, air concentration, and injection nozzle diameter on the evolution of bubble size distribution with axial pipe position were studied. For the lowest air concentration of 0.07%, equilibrium bubble size distributions were dependent only on water velocity. Nozzle injection diameter did not affect the downstream bubble size distributions at air concentrations of 0.07% and 0.3%. Levich's break-up theory was found to over-predict the experimental d max for each test condition.

AB - The bubble size distributions of air dispersed in water flowing in a 100 mm horizontal pipeline were studied. Size distributions were obtained with a high-speed digital camera at axial positions 0.5, 15.3 and 42.3 m from the air injection point. Air was injected into the pipeline through a narrow tube extending into the pipe, perpendicular to the pipe axis. The effects of average water velocity, air concentration, and injection nozzle diameter on the evolution of bubble size distribution with axial pipe position were studied. For the lowest air concentration of 0.07%, equilibrium bubble size distributions were dependent only on water velocity. Nozzle injection diameter did not affect the downstream bubble size distributions at air concentrations of 0.07% and 0.3%. Levich's break-up theory was found to over-predict the experimental d max for each test condition.

KW - Air-water pipe flows

KW - Dispersed bubble flow regime

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U2 - 10.1002/cjce.5450820428

DO - 10.1002/cjce.5450820428

M3 - 文章

AN - SCOPUS:11844281518

SN - 0008-4034

VL - 82

SP - 858

EP - 864

JO - Canadian Journal of Chemical Engineering

JF - Canadian Journal of Chemical Engineering

IS - 4

ER -

Bubble size distributions for dispersed air - Water flows in a 100 mm horizontal pipeline

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Keywords

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