Vis enkel innførsel

dc.contributor.authorMoldesæther, Ole Vegar
dc.date.accessioned2011-10-25T09:24:33Z
dc.date.available2011-10-25T09:24:33Z
dc.date.issued2011
dc.identifier.urihttp://hdl.handle.net/11250/182843
dc.descriptionMaster's thesis in Structural engineeringen_US
dc.description.abstractModifications in the process industry are quite common. For many of these modifications cutting of existing equipment and structure will be a central activity. The abrasive diamond wire cutting technology is adopted from the stone cutting industry, and has proven to cut cross-sections of steel quite efficient. However, as for any machining process, there will be heat generated from friction and a spark emission. Since most of the process plants are regarded as a hazardous zone, in terms of potentially explosive atmospheres, there will always be a risk increase when performing work which produces potential ignition sources. The ATEX Directive was founded for allowing free trade of explosion proof equipment within the European Union. Thus the requirements found within the ATEX Directive are established to reduce the risk of ignition for the relevant equipment which fulfills the requirements stated therein. In this thesis the theory of diamond wire is established by adopting central elements from conventional abrasive technology. This theory is then used as a basis for a thermal model, usable for numerical simulations. The model is partially validated against measured temperatures. However, when adding coolants the model would over-estimate the temperatures. The results obtained showed that diamond wire cutting most likely would be safe, in terms of hot surfaces, if adequate cooling is applied. When regarding sparks no conclusions could be obtained of either ignition potential or temperature.en_US
dc.language.isoengen_US
dc.publisherUniversity of Stavanger, Norwayen_US
dc.relation.ispartofseriesMasteroppgave/UIS-TN-IKM/2011;
dc.subjectoffshore teknologien_US
dc.subjectkonstruksjonsteknikken_US
dc.subjecthot surfacesen_US
dc.subjectignition of explosive atmospheresen_US
dc.subjectdiamond wire cuttingen_US
dc.subjectmaterialteknologien_US
dc.subjectbyggkonstruksjoneren_US
dc.titleUtilization of synthetic diamonds for cutting purposes in explosive atmospheresen_US
dc.typeMaster thesisen_US
dc.subject.nsiVDP::Technology: 500::Materials science and engineering: 520en_US


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

  • Studentoppgaver (TN-IKM / TN-IMBM) [1213]
    Master- og bacheloroppgaver i Konstruksjoner og materialer / Maskin, bygg og materialteknologi (maskinkonstruksjoner, byggkonstruksjoner og energiteknologi) / Masteroppgaver i Offshore teknologi: industriell teknologi og driftsledelse - Offshore technology: industrial Asset management / Masteroppgaver i Offshoreteknologi : offshore systemer (konstruksjonsteknikk og marin- og undervannsteknologi-subsea technology)

Vis enkel innførsel