Experimental study of kerosene-water two-phase flow in a vertical pipe using hot-film and dual optical probes

Hdl Handle:
http://hdl.handle.net/10149/249594
Title:
Experimental study of kerosene-water two-phase flow in a vertical pipe using hot-film and dual optical probes
Authors:
Hamad, F. A. (Faik); Khan, M. K.; Bruun, H. H.
Affiliation:
Teesside University. School of Science and Engineering.
Citation:
Hamad, F.A., Khan, M.K. and Bruun, H.H. (2012) 'Experimental study of kerosene-water two-phase flow in a vertical pipe using hot-film and dual optical probes', The Canadian Journal of Chemical Engineering, Forthcoming in 2012.
Publisher:
Wiley Blackwell
Journal:
The Canadian Journal of Chemical Engineering
Issue Date:
Sep-2012
URI:
http://hdl.handle.net/10149/249594
DOI:
10.1002/cjce.21743
Additional Links:
http://doi.wiley.com/10.1002/cjce.21743
Abstract:
The local parameters for kerosene–water upward flow are measured in a vertical pipe of 77.8 mm inner diameter at 4200 mm from the inlet (L/D = 54) using hot-film and dual optical probes. The effect of superficial water velocity and volumetric quality on radial distribution of two-phase flow parameters is investigated. The results show the following: (i) the profiles of volume fraction and drop frequency are very similar, and increasing superficial water velocity at low volumetric qualities (<18.6%) change the profile from a convex shape with peak at the pipe centreline to uniform then to concave shape with peak near the wall; (ii) the profiles of drop cut chord change from a parabolic shape with peak at centreline for low superficial water velocities to a flat shape at higher superficial water velocity, and the area-averaged drop diameter decreases with higher superficial water velocities for all volumetric qualities; (iii) velocity profiles for both phases have shapes similar to single phase flow, flatter at higher values of superficial water velocity and volumetric quality and centreline peaked at low superficial water velocities and volumetric qualities; (iv) the slip velocity decreases with radial distance having a peak at centreline and zero values near the wall; (v) introducing kerosene drops into single phase water flow results in a sharp increase in turbulent intensity, particularly at low water velocity, and the difference between the single phase and two-phase flow turbulence intensities decreases with higher superficial water velocities and (vi) the results show that interfacial area concentration increased with higher volumetric quality and higher number of bubbles thereby increases the contact area between the two phases.
Type:
Article
Language:
en
Keywords:
drop cut chord; drop velocity; kerosene-water flow; turbulent intensity; volume fraction; water velocity
ISSN:
0008-4034
EISSN:
1939-019X
Rights:
Subject to restrictions author can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 19/10/2012].
Citation Count:
0 [Scopus, 19/10/2012]

Full metadata record

DC FieldValue Language
dc.contributor.authorHamad, F. A. (Faik)en_GB
dc.contributor.authorKhan, M. K.en_GB
dc.contributor.authorBruun, H. H.en_GB
dc.date.accessioned2012-10-19T11:39:13Z-
dc.date.available2012-10-19T11:39:13Z-
dc.date.issued2012-09-
dc.identifier.citationThe Canadian Journal of Chemical Engineering; Forthcoming in 2012en_GB
dc.identifier.issn0008-4034-
dc.identifier.doi10.1002/cjce.21743-
dc.identifier.urihttp://hdl.handle.net/10149/249594-
dc.description.abstractThe local parameters for kerosene–water upward flow are measured in a vertical pipe of 77.8 mm inner diameter at 4200 mm from the inlet (L/D = 54) using hot-film and dual optical probes. The effect of superficial water velocity and volumetric quality on radial distribution of two-phase flow parameters is investigated. The results show the following: (i) the profiles of volume fraction and drop frequency are very similar, and increasing superficial water velocity at low volumetric qualities (<18.6%) change the profile from a convex shape with peak at the pipe centreline to uniform then to concave shape with peak near the wall; (ii) the profiles of drop cut chord change from a parabolic shape with peak at centreline for low superficial water velocities to a flat shape at higher superficial water velocity, and the area-averaged drop diameter decreases with higher superficial water velocities for all volumetric qualities; (iii) velocity profiles for both phases have shapes similar to single phase flow, flatter at higher values of superficial water velocity and volumetric quality and centreline peaked at low superficial water velocities and volumetric qualities; (iv) the slip velocity decreases with radial distance having a peak at centreline and zero values near the wall; (v) introducing kerosene drops into single phase water flow results in a sharp increase in turbulent intensity, particularly at low water velocity, and the difference between the single phase and two-phase flow turbulence intensities decreases with higher superficial water velocities and (vi) the results show that interfacial area concentration increased with higher volumetric quality and higher number of bubbles thereby increases the contact area between the two phases.en_GB
dc.language.isoenen
dc.publisherWiley Blackwellen_GB
dc.relation.urlhttp://doi.wiley.com/10.1002/cjce.21743en_GB
dc.rightsSubject to restrictions author can archive post-print (ie final draft post-refereeing). For full details see http://www.sherpa.ac.uk/romeo/ [Accessed 19/10/2012].en_GB
dc.subjectdrop cut chorden_GB
dc.subjectdrop velocityen_GB
dc.subjectkerosene-water flowen_GB
dc.subjectturbulent intensityen_GB
dc.subjectvolume fractionen_GB
dc.subjectwater velocityen_GB
dc.titleExperimental study of kerosene-water two-phase flow in a vertical pipe using hot-film and dual optical probesen
dc.typeArticleen
dc.identifier.eissn1939-019X-
dc.contributor.departmentTeesside University. School of Science and Engineering.en_GB
dc.identifier.journalThe Canadian Journal of Chemical Engineeringen_GB
ref.citationcount0 [Scopus, 19/10/2012]en_GB
or.citation.harvardHamad, F.A., Khan, M.K. and Bruun, H.H. (2012) 'Experimental study of kerosene-water two-phase flow in a vertical pipe using hot-film and dual optical probes', The Canadian Journal of Chemical Engineering, Forthcoming in 2012.en_GB
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