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Investigation on wall thinning and creep damage in boiler tube due to scale formation

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dc.citedby3
dc.contributor.authorBegum S.en_US
dc.contributor.authorMustafizul Karim A.N.en_US
dc.contributor.authorShafii M.A.en_US
dc.contributor.authorid7101852571en_US
dc.contributor.authorid7201931257en_US
dc.contributor.authorid55447236000en_US
dc.date.accessioned2023-12-29T07:45:54Z
dc.date.available2023-12-29T07:45:54Z
dc.date.issued2012
dc.description.abstractBoiler is a closed vessel in which the water is heated up to convert it from the liquid phase to superheat steam at specified pressure by addition of heat. The tubes are operated continuously at high temperature due to the formation of scale which has lower conductivity than that of steel. The scale can be formed for various reasons of which tube geometries, flue gas and steam temperature are prominent. The remaining wall thickness decreases due to the formation of scale which eventually causes failure of the boiler tubes. In this investigation an iterative technique was used to determine the temperature distribution across the tube with the increase of operating time. The operating time was considered up to 160,000 hours. The remaining life of the steam generator tube was found by finding hoop stress and Larson Miller Parameter from the Larson Miller Parameter curve for SA213-T22 material. The remaining life of the steam generator tube was used to find cumulative creep damage. By utilizing finite element modelling software, ANSYS 9/ ANSYS 11 the temperature distribution across the steam generator tube was evaluated. The temperature distribution along with Larson Miller Parameter predicted the oxide scale thickness. It was also observed that different input parameters have pronounced affect on the formation of oxide scale inside the steam generator tube. By increasing the heat transfer rate across the wall, the oxide scale thickness was increased more rapidly than normal condition. It was also observed that due to formation of scale the thermal conductivity in the boiler tubes was affected and the remaining life of boiler tubes was decreased and accelerated creep damage. � (2012) Trans Tech Publications, Switzerland.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.4028/www.scientific.net/AMR.538-541.1781
dc.identifier.epage1784
dc.identifier.scopus2-s2.0-84868378550
dc.identifier.spage1781
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84868378550&doi=10.4028%2fwww.scientific.net%2fAMR.538-541.1781&partnerID=40&md5=eb785afef998631402bdf2f18b0154e1
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/30251
dc.identifier.volume538-541
dc.pagecount3
dc.sourceScopus
dc.sourcetitleAdvanced Materials Research
dc.subjectBoiler tube
dc.subjectCreep damage
dc.subjectRemnant life
dc.subjectScale formation
dc.subjectWall thinning
dc.subjectBoilers
dc.subjectCreep
dc.subjectFinite element method
dc.subjectFlue gases
dc.subjectScale (deposits)
dc.subjectTemperature distribution
dc.subjectThermal conductivity
dc.subjectBoiler tubes
dc.subjectCreep damages
dc.subjectRemnant life
dc.subjectScale formation
dc.subjectWall thinning
dc.subjectTubes (components)
dc.titleInvestigation on wall thinning and creep damage in boiler tube due to scale formationen_US
dc.typeConference paperen_US
dspace.entity.typePublication
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