Effects of fluid flow on corrosion behaviour in pipe bends

Correlation on flow induced corrosion (FIC) for straight pipes and bends have been obtained by researchers via a two-dimensional numerical method and experimental techniques. However, for pipe bends, the correlations require further improvements as the flow in bends are more complicated. The objecti...

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Main Author:	Muhammadu, Muhammadu Masin
Format:	Thesis
Language:	English
Published:	2016
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/86058/1/MuhammaduMasinPFKM2016.pdf
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id	my-utm-ep.86058
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spelling	my-utm-ep.860582020-08-30T08:53:12Z Effects of fluid flow on corrosion behaviour in pipe bends 2016 Muhammadu, Muhammadu Masin TJ Mechanical engineering and machinery Correlation on flow induced corrosion (FIC) for straight pipes and bends have been obtained by researchers via a two-dimensional numerical method and experimental techniques. However, for pipe bends, the correlations require further improvements as the flow in bends are more complicated. The objective of this research is to obtain more accurate correlations for FIC in bends using twodimensional and three-dimensional numerical and experimental techniques. In the numerical and experimental approach, several important parameters such as Reynolds number and selected discrete particle model (DPM) were used to obtain erosion rate for miter and smooth bend models. Validations for the modellings were compared with experimental results and locations of the eroded sections were observed to be in agreement. Then, the erosion rates were extracted and analyzed using shooting method. Finally, the new coefficients for the correlations were obtained. When the new equations were applied to the same two-dimensional models, it was shown that the previous two-dimensional models had over-predicted the mass transfer values. Furthermore, when comparisons were made between smooth and miter bends results under the same flow conditions, it was observed that mass transfer values calculated from miter bend models were much higher than that of smooth bends. Experimental results also showed similar behavior, when the surface morphology was examined under Field Emission Scanning Electron Microscope (FESEM). From numerical and experimental approach conducted, it is concluded that the inner diameter bends were the areas with the highest FIC behaviour for 300 and 450 smooth and mitre bends. 2016 Thesis http://eprints.utm.my/id/eprint/86058/ http://eprints.utm.my/id/eprint/86058/1/MuhammaduMasinPFKM2016.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:134251 phd doctoral Universiti Teknologi Malaysia, Faculty of Engineering - Faculty of Engineering - School of Mechanical Engineering Faculty of Engineering - School of Mechanical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Muhammadu, Muhammadu Masin Effects of fluid flow on corrosion behaviour in pipe bends
description	Correlation on flow induced corrosion (FIC) for straight pipes and bends have been obtained by researchers via a two-dimensional numerical method and experimental techniques. However, for pipe bends, the correlations require further improvements as the flow in bends are more complicated. The objective of this research is to obtain more accurate correlations for FIC in bends using twodimensional and three-dimensional numerical and experimental techniques. In the numerical and experimental approach, several important parameters such as Reynolds number and selected discrete particle model (DPM) were used to obtain erosion rate for miter and smooth bend models. Validations for the modellings were compared with experimental results and locations of the eroded sections were observed to be in agreement. Then, the erosion rates were extracted and analyzed using shooting method. Finally, the new coefficients for the correlations were obtained. When the new equations were applied to the same two-dimensional models, it was shown that the previous two-dimensional models had over-predicted the mass transfer values. Furthermore, when comparisons were made between smooth and miter bends results under the same flow conditions, it was observed that mass transfer values calculated from miter bend models were much higher than that of smooth bends. Experimental results also showed similar behavior, when the surface morphology was examined under Field Emission Scanning Electron Microscope (FESEM). From numerical and experimental approach conducted, it is concluded that the inner diameter bends were the areas with the highest FIC behaviour for 300 and 450 smooth and mitre bends.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Muhammadu, Muhammadu Masin
author_facet	Muhammadu, Muhammadu Masin
author_sort	Muhammadu, Muhammadu Masin
title	Effects of fluid flow on corrosion behaviour in pipe bends
title_short	Effects of fluid flow on corrosion behaviour in pipe bends
title_full	Effects of fluid flow on corrosion behaviour in pipe bends
title_fullStr	Effects of fluid flow on corrosion behaviour in pipe bends
title_full_unstemmed	Effects of fluid flow on corrosion behaviour in pipe bends
title_sort	effects of fluid flow on corrosion behaviour in pipe bends
granting_institution	Universiti Teknologi Malaysia, Faculty of Engineering - Faculty of Engineering - School of Mechanical Engineering
granting_department	Faculty of Engineering - School of Mechanical Engineering
publishDate	2016
url	http://eprints.utm.my/id/eprint/86058/1/MuhammaduMasinPFKM2016.pdf
_version_	1747818488136728576

Effects of fluid flow on corrosion behaviour in pipe bends

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