Et profilbilde

Prorektor
Tor Henning Hemmingsen { "honorific-suffix": "Prorektor", "fn": "Tor Henning Hemmingsen", "tel": "Telefon: 51831585", "email": "tor.hemmingsen@uis.no" }

Avdeling/enhet Det teknisk- naturvitenskapelige fakultet
Institutt/senter Institutt for maskin, bygg og materialteknologi
Rom KE E-225

For more info, see homepage

Forskningsområder

Utvalgte publikasjoner

Pågående forskning

Arbeidserfaring

Vitenskapelige publikasjoner (fra CRISTin)

  • Adasooriya, Mudiyan Nirosha Damayanthi; Hemmingsen, Tor; Pavlou, Dimitrios (2017). Fatigue Strength Degradation of Metals in Corrosive Environments. IOP Conference Series: Materials Science and Engineering. ISSN 1757-8981. Hefte 276. DOI: 10.1088/1757-899X/276/1/012039.
  • Dotel, Utsav Raj; Vuorilehto, Kai; Sydnes, Magne Olav; Urkedal, Hans; Hemmingsen, Tor Henning (2017). Electrochemical Oxygen Removal from Seawater in Industrial Scale using Silver Cathode. Industrial & Engineering Chemistry Research. ISSN 0888-5885. Volum 56. Hefte 31. s. 8954-8960. DOI: 10.1021/acs.iecr.7b02004.
  • Ekawati, Dian; Berntsen, Tonje; Seiersten, Marion; Hemmingsen, Tor (2017). Effect of Temperature, Bicarbonate, and MEG Concentrations on CO2 Corrosion of Carbon Steels. Corrosion. ISSN 0010-9312. Volum 73. Hefte 9. s. 1157-1167. DOI: 10.5006/2143.
  • Mikkelsen, Ove; Rege, Kristen; Hemmingsen, Tor Henning; Pavlou, Dimitrios (2017). Numerical Estimation of the Stop Holes-Induced Fatigue Crack Growth Retardation in Offshore Structures Taking into Account the Corrosion Effect. I: The Proceedings of the twenty-seventh (2017) International Ocean and Polar Engineering Conference - ISOPE 2017. International Society of Offshore & Polar Engineers. ISBN 978-1-880653-97-5. s. 451-458.
  • Berntsen, Tonje; Laethaisong, Nushjarin; Seiersten, Marion; Hemmingsen, Tor Henning (2016). Uncovering carbide on carbon steels by use of anodic galvanostatic polarization and its effect on CO2 corrosion. Corrosion. ISSN 0010-9312. Volum 72. Hefte 4. s. 534-546. DOI: 10.5006/1691.
  • Dotel, Utsav Raj; Vuorilehto, Kai; Sydnes, Magne Olav; Urkedal, Hans; Hemmingsen, Tor Henning (2016). Experimental Study of Silver Cathode for Electrochemical Deoxygenation of Seawater for Enhanced Oil Recovery. Industrial & Engineering Chemistry Research. ISSN 0888-5885. Volum 55. Hefte 30. s. 8235-8242. DOI: 10.1021/acs.iecr.6b01493.
  • Kommedal, Roald; Bagi, Andrea; Hemmingsen, Tor Henning (2015). Environmental Effects of Oil and Gas Exploration and Production in the Barents Sea. I: International Arctic Petroleum Cooperation: Barents Sea Scenarios. Routledge. ISBN 978-1-13-878326-3. s. 225-250.
  • Berntsen, Tonje; Seiersten, Marion; Hemmingsen, Tor Henning (2013). Effect of FeCO3 Supersaturation and Carbide Exposure on the CO2 Corrosion Rate of Carbon Steel. Corrosion. ISSN 0010-9312. Volum 69. Hefte 6. s. 601-613. DOI: 10.5006/0553.
  • Enge, Espen; Bredal, Mikal Vedå; Vatsvåg, Helge; Hemmingsen, Tor Henning (2012). The survival of a small isolated brown trout population (Salmo trutta) in a harsh environment in the remote Lysedalen, Rogaland. Vann. ISSN 0042-2592. Hefte 2. s. 152-169.
  • Song, Yuan; Palencsar, Attila; Svenningsen, Gaute; Kvarekvål, Jon; Hemmingsen, Tor Henning (2012). Effect of O-2 and Temperature on Sour Corrosion. Corrosion. ISSN 0010-9312. Volum 68. Hefte 7. s. 662-671. DOI: 10.5006/0341.
  • Enge, Espen; Hemmingsen, Tor (2010). Modellberegning av vannkjemiske effekter av vassdragsreguleringer ? eksempel fra Sira-Kvina-reguleringen. Vann. ISSN 0042-2592. Volum 45. Hefte 3.
  • Hilbert, Lisbeth; Hemmingsen, Tor; Nielsen, Lars Vendelboe; Richter, S. (2007). Reliability of electrochemical techniques for determining corrosion rates on carbon steel in sulfide media. Corrosion. ISSN 0010-9312. Volum 63.
  • Skavås, Erling; Hemmingsen, Tor (2007). Kinetics and mechanism of sulphite oxidation on a rotating platinum disc electrode in an alkaline solution. Electrochimica Acta. ISSN 0013-4686. Volum 52.
  • Hemmingsen, Tor; Fusek, Frederik; Skavås, Erling (2006). Monitoring of the corrosion process on sulphide film formation with electrochemical and optical measurements. Electrochimica Acta. ISSN 0013-4686. Volum 51. s. 0-0.
  • Hilbert, Lisbeth; Hemmingsen, Tor; Vendelboe Nielsen, Lars; Richter, Sonja (2005). When can electrochemical techniques give reliable corrosion rates on carbon steel in sulfide media?. ?.
  • Brede, Cato; Skjevrak, Ingunn; Herigstad, H; Aanensen, Elin; Austvoll, Ruth; Hemmingsen, Tor (2002). Sample preparation and cleanup suitable for the screening of migration contaminants in vegetable oil using gas chromatography coupled with mass spectrometry. Food Additives and Contaminants. ISSN 0265-203X. Volum 19. s. 483-491.
  • Hemmingsen, Tor; Hovdan, Halfdan; Sanni, Pål; Aagotnes, Nils Olav (2002). The influence of electrolyte reduction potential on weld corrosion. Electrochimica Acta. ISSN 0013-4686. Volum 47. Hefte 24. s. 3949-3955.
  • Hemmingsen, Tor; Lima, Hege (1998). Electrochemical and optical studies of sulphide film formation on carbon steel. ?. Volum 35.
  • Treindl, L.; Hemmingsen, Tor; Ruoff, Peter (1997). The Belousov-Zhabotinskii Oscillations during Chemical or Electrochemical Generation of Silver Ions. ?. Volum 269. s. 263-267.
  • Hemmingsen, Tor (1992). The Electrochemical Reaction of Sulphur-Oxygen Compounds. Part II. Voltammetric Investigations Performed on Platinum. Electrochimica Acta. ISSN 0013-4686. Volum 37. Hefte 15. s. 2785-2790.
  • Hemmingsen, Tor (1992). The electrochemical reaction of sulphur––oxygen compounds––part I. A review of literature on the electrochemical properties of sulphur/sulphur––oxygen compounds. Electrochimica Acta. ISSN 0013-4686. Volum 37. Hefte 15. s. 2775-2784.
  • Hemmingsen, Tor; Hemmingsen, Tor; Vangdal, Hans; Våland, Torstein (1992). Formation of Ferrous Sulfide Film from Sulfite under Anaerobic Conditions. Corrosion. ISSN 0010-9312. Volum 48. Hefte 6. s. 475-481.
  • Hemmingsen, Tor; Vendelboe Nielsen, Lars; Maahn, Ernst (1992). The effect of sulphite om pitting and crevice corrosion on various steels in 0,5 M sodium chloride. Materials Science Forum. ISSN 0255-5476. Volum 111-112. s. 453-470.
  • Hemmingsen, Tor; Hemmingsen, Tor; Våland, Torstein (1991). The Reactions of the Sulphite/Bisulphite - Couple on SMO-steel under Anaerobic Conditions. Electrochimica Acta. ISSN 0013-4686. Volum 36. Hefte 8. s. 1367-1375.
  • Hemmingsen, Tor; Svendsen, Jon Sigurd; Sydnes, Leiv (1988). Silver-ion Assisted Methanolysis of 2,2-Dibromo-1-methylcyclopropancarboxylic Acid and 2,2-Dibromo-1,3-dimethylcyclopropancarboxylic Acid. Acta Chemica Scandinavica. ISSN 0904-213X. Volum 42. Hefte 10. s. 651-661.
  • Hemmingsen, Tor Henning; Svendsen, John Sigurd; Sydnes, Leiv Kristen (1988). Silver-ion assisted methanolysis of 2,2-dibromo-1-methylcyclopropanecarboxylic acid and 2,2-dibromo-1,3-dimethylcyclopropanecarboxylic acid. Acta Chemica Scandinavica. ISSN 0904-213X. Volum B42. Hefte 10. s. 651-661.
  • Sydnes, Leiv; Hemmingsen, Tor (1986). The Photochemical Decomposition of 9,10-Dimethyl-9,10-Dihydro-9,10-Epidioxyanthracene: A Reinvestigation. Journal Chemical Research. ISSN 0308-2342. Volum 66. s. 66-67.
  • Sydnes, Leiv; Hemmingsen, Tor (1985). Silver Ion-Assisted Methanolysis of Some Functionalized Bromocyclopropane Derivatives. Acta Chemica Scandinavica. ISSN 0904-213X. Volum B39. s. 93-102.
  • Sydnes, Leiv; Hemmingsen, Tor (1985). Seasonal Variations in Weathering and Toxicity of Crude Oil on Seawater under Arctic Conditions. Environmental Science and Technology. ISSN 0013-936X. Volum 19. Hefte 11. s. 1076-1081.
  • Skogestad, Sigurd; Einarsrud, Mari-Ann; Fjellvåg, Helmer; Gundersen, Lise-Lotte; Hansen, Trond Vidar; Hemmingsen, Tor; Hemmingsen, Tor; Jensen, Vidar; Kallenborn, Roland; Salbu, Brit; Smalås, Arne; Walsø, Geir (2010). Oppfølging av Kjemievalueringen 2009. Forskningsrådet. ISBN 9788212027848. 101 s.
  • Jentoft, Nils Arne; Hemmingsen, Tor (2005). Grensesprengende kjemi. Norsk Kjemisk Selskap. ISBN 829129402X. 192 s.
  • Hemmingsen, Tor (2004). Elektrokjemi. Kjemi. 16 s.
  • Hemmingsen, Tor; Fusek, Frederik; Fjelde, Ingebret (2004). Corrosion measurements on carbon steel electrodes in presence of oil, corrosion and scale inhibitors. Rogalandsforskning.
  • Hemmingsen, Tor; Thorarinsdottir, Ragnheidur Inga; Hilbert, Lisbeth; Vendelboe Nielsen, Lars; Forsen, Olof; Thierry, Dominoque (2004). Monitoring corrosion in district heating systems - Final report. 254 s.
  • Mikkelsen, Ove; Rege, Kristen; Hemmingsen, Tor Henning; Pavlou, Dimitrios (2017). Numerical Estimation of the Stop Holes-Induced Fatigue Crack Growth Retardation in Offshore Structures Taking into Account the Corrosion Effect. ISOPE; 2017-06-25 - 2017-06-30.
  • Palencsar, Attila; Seiersten, Marion; Berntsen, Tonje; Hemmingsen, Tor Henning (2017). Assessment of pH stabilization in low temperature regions of long subsea pipelines. European Federation of Corrosion; 2017-09-03 - 2017-09-07.
  • Dotel, Utsav Raj; Bakrachevska, Elena; Austbø, Shane C Gjelnes; Hemmingsen, Tor Henning; Havn, Torfinn (2015). Corrosion resistance of tubing after bending. Norsk Korrosjonsforening/Universitetet i Stavanger; 2015-05-20 - 2015-05-22.
  • Høydal, Anne Britt; Skavås, Erling; Hemmingsen, Tor Henning (2013). Paper 2013_2763 Crevice Corrosion on Super Duplex Stainless Steel? Effect of Potential on Critical Crevice Corrosion Temperature. NACE; 2013-03-17 - 2013-03-21.
  • Farida, Winia; Hemmingsen, Tor Henning; Berntsen, Tonje; Rabindran, Patrick (2012). Effect of Precorrosion and Temperature on the Formation Rate of Iron Carbonate Film. Euro Institute for Information and Technology Transfer -ITEP; 2012-03-28 - 2012-03-30.
  • Berntsen, Tonje; Seiersten, M.; Hemmingsen, Tor Henning (2011). Effect of FeCO3 Supersaturation and Carbide Exposure on the CO~2 Corrosion Rate of Carbon Steel. 2011-03-13 - 2011-03-17.
  • Song, Y; Palencsar, Attila; Svenningsen, Gaute; Hemmingsen, Tor Henning; Kvarekval, J. (2011). Effect of O2 and Temperature on Sour Corrosion. 2011-03-13 - 2011-03-17.
  • Song, Yuan; Palencsar, Attila; Svenningsen, Gaute; Hemmingsen, Tor; Kvarekvål, J. (2010). Effect of oxygen and temperature on aqueous sour corrosion systems. 2010-09-13 - 2010-09-17.
  • Palencsar, Attila; Song, Yuan; Svenningsen, Gaute; Hemmingsen, Tor; Kvarekvål, J. (2009). Effect of oxygen on aqueous sour corrosion systems. 2009-09-06 - 2009-09-10.
  • Berntsen, Tonje; Seiersten, Marion; Hemmingsen, Tor (2008). CO2 Corrosion of Carbon Steel at Lower Temperatures. 2008-09-07 - 2008-09-11.
  • Hörnlund, Erik; Fossen, Jørn; Hauger, Stian; Haugen, Christine; Havn, Torfinn; Hemmingsen, Tor (2007). Hydrogen Diffusivities and Concentrations in 520M Carbon Steel under Cathodic Protection in 0.5M NaCl and the Effect of Added Sulphite, Dithionite, Thiosulphate, and Sulphide.
  • Skavås, Erling; Hemmingsen, Tor (2007). A Study of the Interference from Sulphide and Dithionite on Electrochemical Sulphite Analyses on Platinum.
  • Hemmingsen, Tor (2006). Uten kjemi stopper oljen. 2006-09-21.
  • Skavås, Erling; Adriaens, Annemie; Hemmingsen, Tor (2006). A comparative study of sulphite oxidation under alkaline conditions by use of wall-jet flow cell and rotating disc electrode.
  • Havn, Torfinn; Hemmingsen, Tor; Hörnlund, Erik; Eriksen, Kristian (2005). Comparison of corrosion resistance of two duplex stainless steels after simulated welding. 2005-09-04 - 2005-09-08.
  • Hemmingsen, Tor (2005). Bruk av offeranoder for katodisk beskyttelse i produsert vannmiljø i separator/prosesstanker. 2005-11-22 - 2005-11-23.
  • Hemmingsen, Tor; Havn, Torfinn; Hörnlund, Erik; Ferkingstad, Håkon; Voll, Frank (2005). Use of aluminium and zinc anodes for cathodic protection of produced water tanks and separators. 2005-09-04 - 2005-09-08.
  • Hörnlund, Erik; Havn, Torfinn; Hemmingsen, Tor (2005). The effect of sulphur compounds on hydrogen permeation rate in steel. 2005-09-25 - 2005-09-30.
  • Havn, Torfinn; Hemmingsen, Tor (2004). Safe use of Al-bronze components in 22Cr duplex stainlesssteel equipment. 2004-03-28.
  • Hemmingsen, Tor; Austvoll, Ivar; Fusek, Frederik; Skavås, Erling (2004). Combined optical and electrochemical measurements on sulphide film formation. 2004-04-18.
  • Hemmingsen, Tor; Førre, Knut; Urke, Hildegunn; Aagotnes, Nils Olav; Eliassen, Svein (2004). Hydrogen diffusion in 13Cr supermartensitic stainless steels. Experiences with the electrochemical hydrogen permeationcell. 2004-04-18.
  • Hemmingsen, Tor; Skavås, Erling; Fusek, Frederik (2004). Sulphide film formation under alkaline conditions. 2004-09-12 - 2004-09-16.
  • Hemmingsen, Tor (2003). A comparison of sulphur compounds in saline and non-saline electrolytes on carbon steel. 2003-08-31 - 2003-09-05.
  • Hemmingsen, Tor (2003). Assessment of sulphur and H2S corrosion by the use of simultaneous ER, galvanic and optical measurements. Danmarks Tekniske Universitet; 2003-04-08.
  • Hemmingsen, Tor (2003). Elektrokjemiske studier omkring svovel. Dansk Korrosionsteknisk Selskap; 2003-04-03.
  • Hemmingsen, Tor (2003). Fjernvarme - utfordringer og muligheter. Norsk Kjemisk Selskap; 2003-02-05.
  • Hemmingsen, Tor; Hilbert, Lisbeth; Vendelboe Nielsen, Lars (2003). Assessment of sulphur and H2S corrosion by use of simultaneous ER, galvanic and optical measurements. 2003-09-28 - 2003-10-02.
  • Richter, Sonja; Hemmingsen, Tor (2003). A Study of Electrochemical Behaviour of Sulphur Compounds. 2003-09-28 - 2003-10-02.
  • Havn, Torfinn; Hardli, Lars; Aagotnes, Nils Olav; Hemmingsen, Tor (2002). Investigation of use of 316 SS in seawater protected by carbon steel. 2002-04-07 - 2002-04-11.
  • Hemmingsen, Tor (2002). Monitering av korrosjon i fjernvarmeanlegg- Et Nordisk Samarbeidsprosjekt. Norsk Korrosjonsteknisk Forening; 2002-11-06.
  • Thorarinsdottir, Ragnheidur Inga; Hemmingsen, Tor; Nordling, Magnus; Jansen, Piet (2002). Improved quality control - Corrosion monitoring in district heating systems.
  • Hemmingsen, Tor; Hovdan, Halfdan; Sanni, Pål; Aagotnes, Nils Olav (2001). Determination of Tafel lines. 2001-09-02 - 2001-09-07.
  • Hemmingsen, Tor; Hovdan, Halfdan; Sanni, Pål; Aagotnes, Nils Olav (2001). Effect of the redox potential in an electrolyte on weld corrosion. 2001-09-02 - 2001-09-07.
  • Thorarinsdottir, Ragnheidur Inga; Nielsen, Kate; Nielsen, Lars Vendelboe; Hilbert, Lisbeth; Nordling, Magnus; Hemmingsen, Tor (2001). Monitering af korrosion i fjernvarmesystemer.
  • Thorarinsdottir, Ragnheidur Inga; Nielsen, Kate; Nielsen, Lars Vendelboe; Hilbert, Lisbeth; Nordling, Magnus; Hemmingsen, Tor (2001). Monitering av korrosjon i fjernvarmesystemer.
  • Aagotnes, Nils Olav; Hemmingsen, Tor; Haarseth, Cecilie Alveid; Midttveit, Ingolf (2000). Comparison of corrosion measurments by use of AC-impedance, LPR and Polarisation Methods on carbon steel in CO2 purged NaCl solutions.
  • Hemmingsen, Tor (2000). Electrochemical and optical measurements of film formation on steel surface. 2000-12-10 - 2000-12-14.
  • Hemmingsen, Tor; Aagotnes, Nils Olav; Silseth, Trine Kroeger; Kolak, Nada; Kaik, Merete (2000). Effect of sulphite ions in N2 and CO2 purged 0.5 M NaCl solution on stainless steels examined by different electrochemical techniques and by reflectance measurments.
  • Hemmingsen, Tor (1999). An evaluation of 13%Cr-steel for use in the oil wells.
  • Hemmingsen, Tor; Hinnaland, Dag A.; Saasen, Arild (1999). The co-effect of asphaltenes on wax precipitation and crystallisation temperature.
  • Hemmingsen, Tor; Haarseth, Cecilie A. (1998). Studies of Carbonates Film Formation on Carbon Steel by Use of AC-Impedance.
  • Hemmingsen, Tor (1993). The Effect of Sulphite on Pitting and Crevice Corrosion on AISI 304 Stainless Steel. 1993-04-18 - 1993-04-21.