Tube shape selection for heat recovery from particle-laden exhaust gas streams

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dc.contributor.authorWalmsley, Timothy Gordon
dc.contributor.authorWalmsley, Michael R.W.
dc.contributor.authorAtkins, Martin John
dc.contributor.authorNeale, James R.
dc.contributor.authorHoffmann-Vocke, Jonas
dc.coverage.spatialConference held at Hamilton, New Zealand
dc.date.accessioned2014-12-16T20:38:16Z
dc.date.available2011-12-01
dc.date.available2014-12-16T20:38:16Z
dc.date.issued2011-12-01
dc.description.abstractHeat recovery from exhaust gas streams is applicable to a wide variety of industries. Two problems encountered in exhaust gas heat recovery are: the high heat transfer resistance of gases and the presence of entrained particulate matter, which can limit the use of extended surface area. Standard heat exchangers use round tube. This study uses Computational Fluid Dynamics (CFD) to investigate whether round or another shape is the best tube selection for exhaust heat recovery. Tube shape rankings are based on taking into account heat transfer, gas flow resistance and foulability. Foulability is inferred from the average wall shear stress around the front or back of each shape. An estimated asymptotic fouling resistance is used to calculate an equivalent fouled j factor, jf. CFD results suggest the best tube for exhaust heat recovery is an elliptical tube. The ellipse shape produced j/f and jf/f ratios (where f is the tube bank friction factor) over 1.5 times larger than that of standard round tube. A flattened round tube is also promising and may be the practical and economic optimum.
dc.format.mimetypeapplication/pdf
dc.identifier.citationWalmsley, T. G., Walmsley, M. R. W., Atkins, M. J., Neale, J. R., & Hoffmann-Vocke, J. (2011). Tube shape selection for heat recovery from particle-laden exhaust gas streams. Presented at the SCENZ-IChemE Annual Conference in New Zealand, Conference held at Hamilton, New Zealand, 01 - 02 December 2011.en
dc.identifier.urihttps://hdl.handle.net/10289/9008
dc.language.isoen
dc.relation.urihttp://www.icheme.org/~/media/Documents/Countries/New_Zealand/2011/NZ%20Annual%20conference/Abstracts/9%20Tim%20Walmsley.pdf
dc.rights© 2011 copyright with the authors.
dc.sourceSCENZ-IChemE Annual Conference in New Zealand
dc.titleTube shape selection for heat recovery from particle-laden exhaust gas streams
dc.typeConference Contribution
pubs.elements-id23343
pubs.finish-date2011-12-02
pubs.organisational-group/Waikato
pubs.organisational-group/Waikato/FSEN
pubs.organisational-group/Waikato/FSEN/Engineering
pubs.organisational-group/Waikato/FSEN/School of Science
pubs.organisational-group/Waikato/FSEN/School of Science/Earth & Ocean Sciences
pubs.start-date2011-12-01
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