Halvard Tveit
Publikasjoner
2021
-
Folstad, Marit Buhaug;
Ringdalen, Eli;
Tveit, Halvard;
Tangstad, Merete.
(2021)
Effect of different SiO2 polymorphs on the reaction between SiO2 and SiC in Si production.
Metallurgical and Materials Transactions B.
volum 52B (2).
Vitenskapelig artikkel
2020
-
Ringdalen, Eli;
Bao, Sarina;
Tveit, Halvard.
(2020)
Effect of melting properties of quartz on industrial Si and FeSi production.
Silicon for the Chemical and Solar Industry XV.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Andresen, Birger;
Rong, Harry Morten;
Tangstad, Merete;
Tveit, Halvard;
Page, Ingrid Gamst.
(2020)
Silicon for the Chemical and Solar Industry XV.
2020. ISBN 978-82-997357-9-7.
Vitenskapelig antologi/Konferanseserie
-
Tveit, Halvard;
Ringdalen, Eli;
Edfeldt, Hanne.
(2020)
Important parameters that control the crater pressure in a Silicon Furnace.
Silicon for the Chemical and Solar Industry XV.
Faglig kapittel
2019
-
Ringdalen, Eli;
Bao, Sarina;
Tveit, Halvard;
Nordnes, Elisabeth.
(2019)
Melting properties of quartz and their effect on industrial Si and FeSi production.
The International Committee for Study of Bauxite, Alumina & Aluminium Conference Proceedings.
Vitenskapelig artikkel
-
Tveit, Halvard;
Kolbeinsen, Leiv.
(2019)
The (love & hate) role of entropy in process metallurgy.
Matériaux & Techniques.
volum 107 (5).
Vitenskapelig artikkel
2018
-
Andresen, Birger;
Nygaard, Lars;
Rong, Harry Morten;
Tangstad, Merete;
Tveit, Halvard;
Page, Ingrid Gamst.
(2018)
Silicon for the Chemical and Solar Industry XIV.
Norges teknisk-naturvitenskapelige universitet. 2018. ISBN 9788269291926.
Vitenskapelig antologi/Konferanseserie
-
Tveit, Halvard;
Breidenthal, Mark.
(2018)
The EHS Achilles Heel of the Silicon Furnace – the Potential for Energy out of Control.
Silicon for the Chemical and Solar Industry XIV.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2016
-
Nygård, Lars;
Pachaly, Bernd;
Rong, Harry Morten;
Tangstad, Merete;
Tveit, Halvard;
Page, Ingrid Gamst.
(2016)
Silicon for the Chemical and Solar Industry XIII.
Norges teknisk-naturvitenskapelige universitet. 2016. ISBN 9788269291919.
Vitenskapelig antologi/Konferanseserie
2015
-
Børset, Marit Takla;
Kolbeinsen, Leiv;
Tveit, Halvard;
Kjelstrup, Signe.
(2015)
Exergy based efficiency indicators for the silicon furnace.
Energy.
volum 90.
Vitenskapelig artikkel
2014
-
Møll, Maria Førde;
Tveit, Halvard;
Berget, Kjell Håkon.
(2014)
Solidification of metallurgical grade silicon Grain size and distribution of intermetallic phases.
Silicon for the Chemical and Solar Industry XII.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Slizovskiy, Dmitry;
Tveit, Halvard;
Brede, I.;
Tranell, Gabriella;
Andersen, Geir Johan;
Kamfjord, Nils Eivind;
Wittgens, Bernd.
(2014)
The industrial-scale study of the effect of charge frequency and H2O behaviour in the off-gases on NOx emissions in Si furnace.
Silicon for the Chemical and Solar Industry XII.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Øye, Harald Arnljot;
Brekken, H.;
Nygaard, Lars;
Rong, Harry Morten;
Tangstad, Merete;
Tveit, Halvard.
(2014)
Silicon for the Chemical and Solar Industry XII.
2014. ISBN 978-82-997357-8-0.
Vitenskapelig antologi/Konferanseserie
2013
-
Børset, Marit Takla;
Kamfjord, Nils Eivind;
Tveit, Halvard;
Kjelstrup, Signe.
(2013)
Energy and exergy analysis of the silicon production process.
Energy.
volum 58.
Vitenskapelig artikkel
-
Næss, Mari K.;
Kero, Ida;
Tranell, Gabriella;
Tang, Kai;
Tveit, Halvard.
(2013)
Element Distribution in Silicon Refining: Thermodynamic Model and Industrial Measurements.
JOM.
volum 66 (11).
Vitenskapelig artikkel
2012
-
Berget, Kjell Håkon;
Garcia, Melina;
Tveit, Halvard.
(2012)
The European Emission Trading Scheme and its impact on the Silicon Industry in Europe.
Silicon for the chemical and solar industry XI : location: Bergen - Ulvik, Norway, June 25-29, 2012.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Kadkhodabeigi, Mehdi;
Safarian-Dastjerdi, Jafar;
Tveit, Halvard;
Tangstad, Merete;
Johansen, Stein Tore.
(2012)
Removal of SiC particles from solar grade silicon melts by imposition of high frequency magnetic field.
Transactions of Nonferrous Metals Society of China.
volum 22 (11).
Vitenskapelig artikkel
-
Kamfjord, Nils Eivind;
Tveit, Halvard;
Solheim, Ingeborg.
(2012)
Pilot Scale Measurements of NO Emissions from the Silicon Process.
3rd International Symposium on High Temperature Metallurgical Processing.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Møll, Maria Førde;
Tveit, Halvard;
Berget, Kjell Håkon.
(2012)
Study of the solidification in a silicon alloy Cooling rate vs. microstructure.
Silicon for the chemical and solar industry XI : location: Bergen - Ulvik, Norway, June 25-29, 2012.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tveit, Halvard;
Andersen, Vegar.
(2012)
The Norwegian power-intensive metallurgical industry and its role in the global household.
Norwegian Energy Policy in Context of the Global Energy Situation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2011
-
Kadkhodabeigi, Mehdi;
Tveit, Halvard;
Johansen, Stein Tore.
(2011)
Modelling the Tapping Process in Submerged Arc Furnaces Used in High Silicon Alloys Production.
ISIJ International.
volum 51 (2).
Vitenskapelig artikkel
2010
-
Kadkhodabeigi, Mehdi;
Tveit, Halvard;
Johansen, Stein Tore.
(2010)
CFD modelling of the effect of furnace crater pressure on the melt and gas flows in the submerged arc furnaces used for silicon production.
Progress in Computational Fluid Dynamics, An International Journal (CFD).
volum 10 (5/6).
Vitenskapelig artikkel
-
Tveit, Halvard;
Berget, Kjell Håkon;
Møll, Maria Førde.
(2010)
The silicon process - the need for a major upgrade of the internal environment and fugitive emissions.
Silicon for the Chemical and Solar Industry X.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2009
-
Tveit, Halvard;
Garcia, Melina;
Delbeck, Håkon;
Haug, Alf Tore;
Saugestad, Bjørn;
Eikeland, Inger Johanne.
(2009)
Water leakages in ferroalloy and silicon reduction furnaces - experience gained from a severe accident in 2006.
Silicon for the Chemical and Solar Industry IX.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2004
-
Tveit, Halvard;
Storset, Magnar;
Eikeland, Inger Johanne.
(2004)
The Silicon Process - Improved Environmental Standards.
Silicon for the Chemical Industry VII.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2002
-
Almås, Kurt;
Delbeck, Håkon K.;
Halland, Torbjørn;
Rong, Harry Morten;
Tveit, Halvard.
(2002)
Improved Environmental and Energy Recovery Performance with New Furnace Hood Design at Elkem Thamshavn.
Silicon for the Chemical Industry VI.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tveit, Halvard;
Halland, Torbjørn;
Landrø, Kjell-Ingar;
Johansen, Stein Tore;
Ravary, Benjamin.
(2002)
The Tapping Process in Silicon Production.
Silicon for the Chemical Industry VI.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2000
-
Tveit, Halvard;
Myrhaug, Edin.
(2000)
Important Sub-Processes in the Silicon Process, the Behavior of Trace Elements.
Silicon for the Chemical Industry V.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
1998
-
Tveit, Halvard;
Eikeland, Inger Johanne.
(1998)
Environmental Aspects of the SIlicon Industry.
Silicon for the chemical industry IV : Geiranger, Norway, June 3-5, 1998.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
1995
-
Tuset, Johan Kristian;
Tveit, Halvard;
Page, I.G. red..
(1995)
INFACON 7 : Trondheim, Norway, June 1995.
1995. ISBN 82-595-8649-5.
Rapport
1993
-
Dingsøyr, Eldar;
Dåstøl, Magne;
Hårsaker, Svein Martin;
Rønning, Per;
Tveit, Halvard.
(1993)
Fremgangsmåte for fremstilling av hvit microsilica.
1993.
Rapport
Tidsskriftspublikasjoner
-
Folstad, Marit Buhaug;
Ringdalen, Eli;
Tveit, Halvard;
Tangstad, Merete.
(2021)
Effect of different SiO2 polymorphs on the reaction between SiO2 and SiC in Si production.
Metallurgical and Materials Transactions B.
volum 52B (2).
Vitenskapelig artikkel
-
Ringdalen, Eli;
Bao, Sarina;
Tveit, Halvard;
Nordnes, Elisabeth.
(2019)
Melting properties of quartz and their effect on industrial Si and FeSi production.
The International Committee for Study of Bauxite, Alumina & Aluminium Conference Proceedings.
Vitenskapelig artikkel
-
Tveit, Halvard;
Kolbeinsen, Leiv.
(2019)
The (love & hate) role of entropy in process metallurgy.
Matériaux & Techniques.
volum 107 (5).
Vitenskapelig artikkel
-
Børset, Marit Takla;
Kolbeinsen, Leiv;
Tveit, Halvard;
Kjelstrup, Signe.
(2015)
Exergy based efficiency indicators for the silicon furnace.
Energy.
volum 90.
Vitenskapelig artikkel
-
Børset, Marit Takla;
Kamfjord, Nils Eivind;
Tveit, Halvard;
Kjelstrup, Signe.
(2013)
Energy and exergy analysis of the silicon production process.
Energy.
volum 58.
Vitenskapelig artikkel
-
Næss, Mari K.;
Kero, Ida;
Tranell, Gabriella;
Tang, Kai;
Tveit, Halvard.
(2013)
Element Distribution in Silicon Refining: Thermodynamic Model and Industrial Measurements.
JOM.
volum 66 (11).
Vitenskapelig artikkel
-
Kadkhodabeigi, Mehdi;
Safarian-Dastjerdi, Jafar;
Tveit, Halvard;
Tangstad, Merete;
Johansen, Stein Tore.
(2012)
Removal of SiC particles from solar grade silicon melts by imposition of high frequency magnetic field.
Transactions of Nonferrous Metals Society of China.
volum 22 (11).
Vitenskapelig artikkel
-
Kadkhodabeigi, Mehdi;
Tveit, Halvard;
Johansen, Stein Tore.
(2011)
Modelling the Tapping Process in Submerged Arc Furnaces Used in High Silicon Alloys Production.
ISIJ International.
volum 51 (2).
Vitenskapelig artikkel
-
Kadkhodabeigi, Mehdi;
Tveit, Halvard;
Johansen, Stein Tore.
(2010)
CFD modelling of the effect of furnace crater pressure on the melt and gas flows in the submerged arc furnaces used for silicon production.
Progress in Computational Fluid Dynamics, An International Journal (CFD).
volum 10 (5/6).
Vitenskapelig artikkel
Bøker
-
Andresen, Birger;
Rong, Harry Morten;
Tangstad, Merete;
Tveit, Halvard;
Page, Ingrid Gamst.
(2020)
Silicon for the Chemical and Solar Industry XV.
2020. ISBN 978-82-997357-9-7.
Vitenskapelig antologi/Konferanseserie
-
Andresen, Birger;
Nygaard, Lars;
Rong, Harry Morten;
Tangstad, Merete;
Tveit, Halvard;
Page, Ingrid Gamst.
(2018)
Silicon for the Chemical and Solar Industry XIV.
Norges teknisk-naturvitenskapelige universitet. 2018. ISBN 9788269291926.
Vitenskapelig antologi/Konferanseserie
-
Nygård, Lars;
Pachaly, Bernd;
Rong, Harry Morten;
Tangstad, Merete;
Tveit, Halvard;
Page, Ingrid Gamst.
(2016)
Silicon for the Chemical and Solar Industry XIII.
Norges teknisk-naturvitenskapelige universitet. 2016. ISBN 9788269291919.
Vitenskapelig antologi/Konferanseserie
-
Øye, Harald Arnljot;
Brekken, H.;
Nygaard, Lars;
Rong, Harry Morten;
Tangstad, Merete;
Tveit, Halvard.
(2014)
Silicon for the Chemical and Solar Industry XII.
2014. ISBN 978-82-997357-8-0.
Vitenskapelig antologi/Konferanseserie
Del av bok/rapport
-
Ringdalen, Eli;
Bao, Sarina;
Tveit, Halvard.
(2020)
Effect of melting properties of quartz on industrial Si and FeSi production.
Silicon for the Chemical and Solar Industry XV.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tveit, Halvard;
Ringdalen, Eli;
Edfeldt, Hanne.
(2020)
Important parameters that control the crater pressure in a Silicon Furnace.
Silicon for the Chemical and Solar Industry XV.
Faglig kapittel
-
Tveit, Halvard;
Breidenthal, Mark.
(2018)
The EHS Achilles Heel of the Silicon Furnace – the Potential for Energy out of Control.
Silicon for the Chemical and Solar Industry XIV.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Møll, Maria Førde;
Tveit, Halvard;
Berget, Kjell Håkon.
(2014)
Solidification of metallurgical grade silicon Grain size and distribution of intermetallic phases.
Silicon for the Chemical and Solar Industry XII.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Slizovskiy, Dmitry;
Tveit, Halvard;
Brede, I.;
Tranell, Gabriella;
Andersen, Geir Johan;
Kamfjord, Nils Eivind;
Wittgens, Bernd.
(2014)
The industrial-scale study of the effect of charge frequency and H2O behaviour in the off-gases on NOx emissions in Si furnace.
Silicon for the Chemical and Solar Industry XII.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Berget, Kjell Håkon;
Garcia, Melina;
Tveit, Halvard.
(2012)
The European Emission Trading Scheme and its impact on the Silicon Industry in Europe.
Silicon for the chemical and solar industry XI : location: Bergen - Ulvik, Norway, June 25-29, 2012.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Kamfjord, Nils Eivind;
Tveit, Halvard;
Solheim, Ingeborg.
(2012)
Pilot Scale Measurements of NO Emissions from the Silicon Process.
3rd International Symposium on High Temperature Metallurgical Processing.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Møll, Maria Førde;
Tveit, Halvard;
Berget, Kjell Håkon.
(2012)
Study of the solidification in a silicon alloy Cooling rate vs. microstructure.
Silicon for the chemical and solar industry XI : location: Bergen - Ulvik, Norway, June 25-29, 2012.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tveit, Halvard;
Andersen, Vegar.
(2012)
The Norwegian power-intensive metallurgical industry and its role in the global household.
Norwegian Energy Policy in Context of the Global Energy Situation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tveit, Halvard;
Berget, Kjell Håkon;
Møll, Maria Førde.
(2010)
The silicon process - the need for a major upgrade of the internal environment and fugitive emissions.
Silicon for the Chemical and Solar Industry X.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tveit, Halvard;
Garcia, Melina;
Delbeck, Håkon;
Haug, Alf Tore;
Saugestad, Bjørn;
Eikeland, Inger Johanne.
(2009)
Water leakages in ferroalloy and silicon reduction furnaces - experience gained from a severe accident in 2006.
Silicon for the Chemical and Solar Industry IX.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tveit, Halvard;
Storset, Magnar;
Eikeland, Inger Johanne.
(2004)
The Silicon Process - Improved Environmental Standards.
Silicon for the Chemical Industry VII.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Almås, Kurt;
Delbeck, Håkon K.;
Halland, Torbjørn;
Rong, Harry Morten;
Tveit, Halvard.
(2002)
Improved Environmental and Energy Recovery Performance with New Furnace Hood Design at Elkem Thamshavn.
Silicon for the Chemical Industry VI.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tveit, Halvard;
Halland, Torbjørn;
Landrø, Kjell-Ingar;
Johansen, Stein Tore;
Ravary, Benjamin.
(2002)
The Tapping Process in Silicon Production.
Silicon for the Chemical Industry VI.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tveit, Halvard;
Myrhaug, Edin.
(2000)
Important Sub-Processes in the Silicon Process, the Behavior of Trace Elements.
Silicon for the Chemical Industry V.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Tveit, Halvard;
Eikeland, Inger Johanne.
(1998)
Environmental Aspects of the SIlicon Industry.
Silicon for the chemical industry IV : Geiranger, Norway, June 3-5, 1998.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Rapport
-
Tuset, Johan Kristian;
Tveit, Halvard;
Page, I.G. red..
(1995)
INFACON 7 : Trondheim, Norway, June 1995.
1995. ISBN 82-595-8649-5.
Rapport
-
Dingsøyr, Eldar;
Dåstøl, Magne;
Hårsaker, Svein Martin;
Rønning, Per;
Tveit, Halvard.
(1993)
Fremgangsmåte for fremstilling av hvit microsilica.
1993.
Rapport
Undervisning
Emner
Formidling
2020
-
Vitenskapelig foredragTveit, Halvard; Ringdalen, Eli; Edfeldt, Hanne. (2020) Important parameters that control the crater pressure in a Silicon Furnace. Silicon conference . NTNU; Trondheim. 2020-06-15 - 2020-06-18.
2019
-
Vitenskapelig foredragRingdalen, Eli; Bao, Sarina; Tveit, Halvard; Nordnes, Elisabeth. (2019) Melting properties of quartz and their effect on industrial Si and FeSi production. International Congress & Exhibition "Non-ferrous Metals and Minerals + ISCOBA conference ; Krasnoyarsk. 2019-09-16 - 2019-09-19.
2018
-
Faglig foredragTveit, Halvard; Breidenthal, Mark. (2018) The EHS Achilles Heel of the Silicon Furnace – the Potential for Energy out of Control. Silicon for the Chemical and Solar Industry XIV . NTNU; Svolvær. 2018-06-11 - 2018-06-14.
2017
-
Faglig foredragKhadkhodabeigi, Mehdi; Tveit, Halvard. (2017) PhD work - Tapping of industrial Si furnaces. Controlled Tapping seminar . NTNU (IMA); Trondheim. 2017-10-11 - 2017-10-12.
2014
-
Vitenskapelig foredragMøll, Maria Førde; Tveit, Halvard; Berget, Kjell Håkon. (2014) Solidification of metallurgical grade silicon. Grain size and distribution of intermetallic phases. Silicon for the Chemical and Solar Industry XII . NTNU; Trondheim. 2014-06-23 - 2014-06-26.
-
Faglig foredragTveit, Halvard; Andersen, Vegar; Berget, Kjell Håkon; Jensen, Ragnhild. (2014) THE TAPPING PROCESS IN SILICON PRODUCTION. SAIMM2014 - FURNACE TAPPING CONFERENCE 2014 . The Southern African Institute of Mining and Metallurgy; Johannesburg. 2014-05-27 - 2014-05-29.
2013
-
Vitenskapelig foredragMøll, Maria Førde; Berget, Kjell Håkon; Myrhaug, Edin; Onsøien, Morten Ingar; Tveit, Halvard. (2013) THE MAIN REASONS TO DEVELOP AN IMPROVED CASTING PROCESS FOR SILICON- NEW REQUIREMENTS FOR WORKING ENVIRONMENT, INCREASED POST TAPHOLE YIELD AND PRODUCT QUALITY. Infacon XIII . Abishev Chemistry and Metallurgy Institute; Almaty. 2013-06-09 - 2013-06-12.
2012
-
Vitenskapelig foredragBerget, Kjell Håkon; Garcia, Melina; Tveit, Halvard. (2012) The European Emission Trading Scheme and its impact on the Silicon Industry in Europe. Silicon for the Chemical and Solar Industry XI . Silicon for the Chemical and Solar Industry XI; Bergen-Ulvik, Norway, June 25-29, 2012. 2012-06-25 - 2012-06-29.
-
Vitenskapelig foredragFørde Møll, Maria; Tveit, Halvard; Berget, Kjell Håkon. (2012) Study of the solidification in a silicon alloy Cooling rate vs. microstructure. Silicon for the Chemical and Solar Industry XI . Silicon for the Chemical and Solar Industry XI; Bergen-Ulvik, Norway, June 25-29, 2012. 2012-06-25 - 2012-06-29.
-
Vitenskapelig foredragMyrhaug, Edin Henrik; Tveit, Halvard; Kamfjord, Nils Eivind; Andersen, Geir J.; Grøvlen, Åslaug. (2012) NOx Emissions from Silicon Production. Silicon for the Chemical and Solar Industry XI . Silicon for the Chemical and Solar Industry XI; Bergen -Ulvik, Norway, June 25 - 29, 2012. 2012-06-25 - 2012-06-29.
-
Vitenskapelig foredragTakla, Marit; Kolbeinsen, Leiv; Tveit, Halvard; Kjelstrup, Signe. (2012) Eksergianalyse av silisiumproduksjonsprosessen. Nasjonal Konferanse for Materialteknologi . Norsk Metallurgisk selskap; Trondheim. 2012-05-09 - 2012-05-10.
-
Vitenskapelig foredragTakla, Marit; Kolbeinsen, Leiv; Tveit, Halvard; Kjelstrup, Signe. (2012) Exergy Analysis of the Silicon Production Process. The 25th International Conference on Efficiency, Cost, Optimization Simulation and Environmental Impact of Energy Systems, ECOS 2012 . La Sapienza Universita di Roma; Perugia. 2012-06-26 - 2012-06-29.
2011
-
Vitenskapelig foredragKadkhodabeigi, Mehdi; Tveit, Halvard; Johansen, Stein Tore. (2011) CFD Modeling of Tapping Process in Ferromanganese Furnaces. 8th International Conference on CFD in Oil & Gas, Metallurgical and Process Industries, ISBN 9788214052626 ; Trondheim. 2011-06-21 - 2011-06-23.
2010
-
Vitenskapelig foredragKadkhodabeigi, Mehdi; Tveit, Halvard; Berget, Kjell Håkon. (2010) Silicon Process - New Hood Design for Tapping Gas Collection. INFACON XII: Sustaiable Future, Volum 1. Published by Outotec Oyj. 2010, ISBN 978-952-92-7340-9, pp. 109-119. ; 2010-06-06 - 2010-06-09.
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Vitenskapelig foredragKamfjord, Nils Eivind; Myrhaug, Edin Henry; Tveit, Halvard; Wittgens, Bernd. (2010) Energy balance of a 45 MW (ferro-) silicon sub-merged arc furnace. INFACON XII . Dr. Asmo Vartiainen; Helsinki. 2010-06-06 - 2010-06-09.
-
Vitenskapelig foredragTveit, Halvard; Berget, Kjell Håkon; Førde Møll, Maria. (2010) The silicon process – the need for a major upgrade of the internal environment and fugitive emissions. Silicon for the Chemical and Solar Industry . Department of Materials Science and Engineering, NTNU; Ålesund and Geiranger. 2010-06-28 - 2010-07-02.
2009
-
Vitenskapelig foredragKadkhodabeigi, Mehdi; Tveit, Halvard; Johansen, Stein Tore. (2009) Modeling the Tapping of Silicon Melt from the Submerged Arc Furnaces. Seventh International Conference on CFD in the Minerals and Process Industries CSIRO, Melbourne, Australia 9-11 December 2009 ; 2009-12-09 - 2009-12-11.
2008
-
Vitenskapelig foredragTveit, Halvard; Garcia, Melina; Delbeck, Håkon; Haug, Alf Tore; Saugestad, Bjørn; Eikeland, Inger Johanne. (2008) Water leakages in ferroalloy and silicon reduction furnaces – experience gained from a severe accident in 2006. Silicon for the Chemical and Solar Industry IX . Department of Materials Science and Engineering, NTNU; Holmen Fjord Hotel, Oslo. 2008-06-23 - 2008-06-26.
2004
-
Vitenskapelig foredragTveit, Halvard; Storset, Magnar; Eikeland, Inger Johanne. (2004) The Silicon Process - Improved Environmental Standards. Silicon for the Chemical Industry VII . Department of Materials Technology, NTNU; Tromsø - Bergen with MS Trollfjord. 2004-09-21 - 2004-09-24.
2002
-
Vitenskapelig foredragTveit, Halvard; Halland, Torbjørn; Landrø, Kjell_Ingar; Johansen, Stein Tore; Ravary, Benjamin. (2002) The Tapping Process in Silicon Production. Silicon for the Chemical Industry VI . Department of Chemistry NTNU; Loen. 2002-06-17 - 2002-06-21.
2001
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Vitenskapelig foredragMonsen, Bodil Elisabeth; Grønli, Morten; Nygaard, Lars; Tveit, Halvard. (2001) The use of biocarbon in the Norwegian ferroalloy production. INFACON IX 2001, The Ninth International Ferroalloys Congress and the Manganese 2001 Health Issues Symposium. Official Proceedings pp 268-276 . The Ferroalloys Association; Quebec City. 2001-06-03 - 2001-06-06.
2000
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Vitenskapelig foredragTveit, Halvard; Myrhaug, Edin Henrik. (2000) IMPORTANT SUB-PROCESSES IN THE SILICON PROCESS.THE BEHAVIOR OF TRACE ELEMENTS. Silicon for the Chemical Industry V . Department of Chemistry NTNU; Tromsø. 2000-05-29 - 2000-06-02.