Heat Exchanger Tube to Tube Sheet Joints Corrosion Behavior

Paper presents the studies made by the authors above the tube to tube sheet fittings of heat exchanger with fixed covers from hydrofining oil reforming unit. Tube fittings are critical zones for heat exchangers failures. On a device made from material tube and tube sheet at real joints dimensions we...

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Main Authors: M. Iancu, R.G. Ripeanu, I. Tudor
Format: Article
Language:English
Published: University of Kragujevac 2013-03-01
Series:Tribology in Industry
Subjects:
Online Access:http://www.tribology.fink.rs/journals/2013/2013-1/2.pdf
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author M. Iancu
R.G. Ripeanu
I. Tudor
author_facet M. Iancu
R.G. Ripeanu
I. Tudor
author_sort M. Iancu
collection DOAJ
description Paper presents the studies made by the authors above the tube to tube sheet fittings of heat exchanger with fixed covers from hydrofining oil reforming unit. Tube fittings are critical zones for heat exchangers failures. On a device made from material tube and tube sheet at real joints dimensions were establish axial compression force and traction force at which tube is extracted from expanded joint. Were used two shapes joints with two types of fittings surfaces, one with smooth hole of tube sheet and other in which on boring surface we made a groove. From extracted expanded tube zones were made samples for corrosion tests in order to establish the corrosion rate, corrosion potential and corrosion current in working mediums such as hydrofining oil and industrial water at different temperatures. The corrosion rate values and the temperature influence are important to evaluate joints durability and also the results obtained shows that the boring tube sheet shape with a groove on hole tube shape presents a better corrosion behavior then the shape with smooth hole tube sheet.
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spelling doaj.art-750184036dce495a8f37b33744293ace2022-12-22T00:57:43ZengUniversity of KragujevacTribology in Industry0354-89962217-79652013-03-013511924Heat Exchanger Tube to Tube Sheet Joints Corrosion BehaviorM. IancuR.G. RipeanuI. TudorPaper presents the studies made by the authors above the tube to tube sheet fittings of heat exchanger with fixed covers from hydrofining oil reforming unit. Tube fittings are critical zones for heat exchangers failures. On a device made from material tube and tube sheet at real joints dimensions were establish axial compression force and traction force at which tube is extracted from expanded joint. Were used two shapes joints with two types of fittings surfaces, one with smooth hole of tube sheet and other in which on boring surface we made a groove. From extracted expanded tube zones were made samples for corrosion tests in order to establish the corrosion rate, corrosion potential and corrosion current in working mediums such as hydrofining oil and industrial water at different temperatures. The corrosion rate values and the temperature influence are important to evaluate joints durability and also the results obtained shows that the boring tube sheet shape with a groove on hole tube shape presents a better corrosion behavior then the shape with smooth hole tube sheet.http://www.tribology.fink.rs/journals/2013/2013-1/2.pdfTube to tube sheet fittingsStressCorrosion rateHydrofining oilTemperature
spellingShingle M. Iancu
R.G. Ripeanu
I. Tudor
Heat Exchanger Tube to Tube Sheet Joints Corrosion Behavior
Tribology in Industry
Tube to tube sheet fittings
Stress
Corrosion rate
Hydrofining oil
Temperature
title Heat Exchanger Tube to Tube Sheet Joints Corrosion Behavior
title_full Heat Exchanger Tube to Tube Sheet Joints Corrosion Behavior
title_fullStr Heat Exchanger Tube to Tube Sheet Joints Corrosion Behavior
title_full_unstemmed Heat Exchanger Tube to Tube Sheet Joints Corrosion Behavior
title_short Heat Exchanger Tube to Tube Sheet Joints Corrosion Behavior
title_sort heat exchanger tube to tube sheet joints corrosion behavior
topic Tube to tube sheet fittings
Stress
Corrosion rate
Hydrofining oil
Temperature
url http://www.tribology.fink.rs/journals/2013/2013-1/2.pdf
work_keys_str_mv AT miancu heatexchangertubetotubesheetjointscorrosionbehavior
AT rgripeanu heatexchangertubetotubesheetjointscorrosionbehavior
AT itudor heatexchangertubetotubesheetjointscorrosionbehavior