Investigations of the guide tube wear in Ringhals pressure water reactors

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dc.contributor.authorOlofsson, Peter
dc.contributor.departmentChalmers tekniska högskola / Institutionen för teknisk fysiksv
dc.contributor.departmentChalmers University of Technology / Department of Applied Physicsen
dc.date.accessioned2019-07-03T12:39:56Z
dc.date.available2019-07-03T12:39:56Z
dc.date.issued2011
dc.description.abstractGuide tubes in Pressure Water Reactors (PWR) are subjected to wear as a result from the contact with control rods. This specific wear has been observed at several international nuclear power plants. The wear can cause problems with the drop time, interference with the Rod Cluster Control Assembly (RCCA) and stuck control rods. At Ringhals, guide tube inspections have been performed for unit 2 and 3 in 2006, unit 4 in 2007 and again in unit 3 in 2010. The results from these inspections are studied and analyzed in this report. It also includes a search for causes and patterns of the guide tube wear. The current status of the guide tubes at Ring- hals is evaluated. The wear is then quantified and compared with wear criterions, defined by companies and organizations in the business. According to the prede- fined criterions, wear of the guide tubes at Ringhals are relatively moderate. Data from the inspections have some sources of errors and further improvement of the methodology is recommended.
dc.identifier.urihttps://hdl.handle.net/20.500.12380/146685
dc.language.isoeng
dc.relation.ispartofseriesCTH-NT - Chalmers University of Technology, Nuclear Engineering : 248
dc.setspec.uppsokPhysicsChemistryMaths
dc.subjectÖvrig teknisk fysik
dc.subjectEnergi
dc.subjectOther engineering physics
dc.subjectEnergy
dc.titleInvestigations of the guide tube wear in Ringhals pressure water reactors
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster Thesisen
dc.type.uppsokH
local.programmeNuclear engineering, MSc
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