Techniques for visualization of cavern boundaries in opaque industrial mixing systems

Mark Simmons; I Edwards; JF Hall; X Fan; David Parker; EH Stitt

doi:10.1002/aic.11889

Techniques for visualization of cavern boundaries in opaque industrial mixing systems

Mark Simmons, I Edwards, JF Hall, X Fan, David Parker, EH Stitt

Research output: Contribution to journal › Article

20 Citations (Scopus)

Abstract

In the agitation of complex fluids, the avoidance of caverns is essential for successful blending. Electrical resistance tomography (ERT) and positron emission projection imaging, which can both image within opaque fluids, have been assessed for visualization of cavern boundaries. A vessel of diameter, T = 154 mm, equipped with a single 57 mm diameter six bladed 45 degrees down pumping pitched blade disc turbine formed the test system. The fluid used was aqueous solution of carbopol 940. Both techniques were used to detect and image caverns at Re from 20-86.6 and compared with optical images. Reasonable agreement on the maximum cavern heights and widths were obtained, with the taller and narrower caverns obtained via 3D ERT measurements being attributed to artifacts of the method and interactions between the polymer and tracer. Caverns were also detectable using a robust linear ERT array, which has potential for use within industrial systems. (C) 2009 American Institute of Chemical Engineers AlChE J, 55: 2765-2772, 2009

Original language	English
Pages (from-to)	2765-2772
Number of pages	8
Journal	AIChE Journal
Volume	55
Issue number	11
DOIs	https://doi.org/10.1002/aic.11889
Publication status	Published - 1 Nov 2009

Keywords

stirred tanks
non-Newtonian fluids
electrical resistance tomography
positron emission tomography
caverns

Access to Document

10.1002/aic.11889

Cite this

@article{4fdf2d85cccc47f7a4e80aa0a047c2c4,

title = "Techniques for visualization of cavern boundaries in opaque industrial mixing systems",

abstract = "In the agitation of complex fluids, the avoidance of caverns is essential for successful blending. Electrical resistance tomography (ERT) and positron emission projection imaging, which can both image within opaque fluids, have been assessed for visualization of cavern boundaries. A vessel of diameter, T = 154 mm, equipped with a single 57 mm diameter six bladed 45 degrees down pumping pitched blade disc turbine formed the test system. The fluid used was aqueous solution of carbopol 940. Both techniques were used to detect and image caverns at Re from 20-86.6 and compared with optical images. Reasonable agreement on the maximum cavern heights and widths were obtained, with the taller and narrower caverns obtained via 3D ERT measurements being attributed to artifacts of the method and interactions between the polymer and tracer. Caverns were also detectable using a robust linear ERT array, which has potential for use within industrial systems. (C) 2009 American Institute of Chemical Engineers AlChE J, 55: 2765-2772, 2009",

keywords = "stirred tanks, non-Newtonian fluids, electrical resistance tomography, positron emission tomography, caverns",

author = "Mark Simmons and I Edwards and JF Hall and X Fan and David Parker and EH Stitt",

year = "2009",

month = nov,

day = "1",

doi = "10.1002/aic.11889",

language = "English",

volume = "55",

pages = "2765--2772",

journal = "AIChE Journal",

issn = "1547-5905",

publisher = "Wiley",

number = "11",

}

TY - JOUR

T1 - Techniques for visualization of cavern boundaries in opaque industrial mixing systems

AU - Simmons, Mark

AU - Edwards, I

AU - Hall, JF

AU - Fan, X

AU - Parker, David

AU - Stitt, EH

PY - 2009/11/1

Y1 - 2009/11/1

N2 - In the agitation of complex fluids, the avoidance of caverns is essential for successful blending. Electrical resistance tomography (ERT) and positron emission projection imaging, which can both image within opaque fluids, have been assessed for visualization of cavern boundaries. A vessel of diameter, T = 154 mm, equipped with a single 57 mm diameter six bladed 45 degrees down pumping pitched blade disc turbine formed the test system. The fluid used was aqueous solution of carbopol 940. Both techniques were used to detect and image caverns at Re from 20-86.6 and compared with optical images. Reasonable agreement on the maximum cavern heights and widths were obtained, with the taller and narrower caverns obtained via 3D ERT measurements being attributed to artifacts of the method and interactions between the polymer and tracer. Caverns were also detectable using a robust linear ERT array, which has potential for use within industrial systems. (C) 2009 American Institute of Chemical Engineers AlChE J, 55: 2765-2772, 2009

AB - In the agitation of complex fluids, the avoidance of caverns is essential for successful blending. Electrical resistance tomography (ERT) and positron emission projection imaging, which can both image within opaque fluids, have been assessed for visualization of cavern boundaries. A vessel of diameter, T = 154 mm, equipped with a single 57 mm diameter six bladed 45 degrees down pumping pitched blade disc turbine formed the test system. The fluid used was aqueous solution of carbopol 940. Both techniques were used to detect and image caverns at Re from 20-86.6 and compared with optical images. Reasonable agreement on the maximum cavern heights and widths were obtained, with the taller and narrower caverns obtained via 3D ERT measurements being attributed to artifacts of the method and interactions between the polymer and tracer. Caverns were also detectable using a robust linear ERT array, which has potential for use within industrial systems. (C) 2009 American Institute of Chemical Engineers AlChE J, 55: 2765-2772, 2009

KW - stirred tanks

KW - non-Newtonian fluids

KW - electrical resistance tomography

KW - positron emission tomography

KW - caverns

U2 - 10.1002/aic.11889

DO - 10.1002/aic.11889

M3 - Article

SN - 1547-5905

VL - 55

SP - 2765

EP - 2772

JO - AIChE Journal

JF - AIChE Journal

IS - 11

ER -

Techniques for visualization of cavern boundaries in opaque industrial mixing systems

Abstract

Keywords

Access to Document

Fingerprint

Cite this