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Thor Anders Aarhaug

Seniorforsker

Thor Anders Aarhaug

Seniorforsker

Thor Anders Aarhaug
Telefon: 926 82 444
Mobil: 926 82 444
Avdeling: Bærekraftig energiteknologi
Kontorsted: Trondheim

Publikasjoner og ansvarsområder

Publikasjoner

Publikasjon

Evaluation of Gas Composition from Laboratory Scale Electrolysis Experiments with Anodes of Different Sulphur Content

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1341394

With the anticipated decrease in available anode raw materials, future anodes are expected to contain higher levels of impurities. Currently the implications of this are being investigated through evaluation of electrochemical performance of anodes and the environmental aspects through gas evolution...

Publikasjon

In-situ gas monitoring by laser induced fluorescence spectroscopy

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1359447

Monitoring of silicon suboxide activity is an important parameter in experiments relevant for silicon metal production. In previous work a reactor with optical access to the reaction zone, by use of a sequence of sapphire, UV fused silica and IR transparent sapphire and CaF2 windows, was designed. I...

År 2016
Type Presentasjon
Publikasjon

Hydrogen Fuel Quality Control: high-pressure sampling and analysis

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1396611

Quality control of hydrogen fuel requires samples to be taken from the nozzle of the hydrogen refueling station dispenser. Samples should be collected at representative pressures and gas velocities and also over the normal duration of a vehicle refuel-ling protocol. The quality control of hydrogen f...

År 2016
Type Presentasjon
Publikasjon

Investigation of Sodium Sulfate Additions into Cryolite-Alumina Melts

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1341391

In the Hall-Héroult process, sulfur impurities may not only emit harmful gases but also reduce current efficiency. To better understand this process, the behaviour of sulfur compounds in a cryolite-alumina melt at 1253 K (980 °C) was investigated in a laboratory cell. Sodium sulfate (Na2SO4) was add...

Forfattere Meirbekova Rauan Haarberg Geir Martin Aarhaug Thor Anders Sævarsdóttir Gudrun A.
År 2016
Type Tidsskriftsartikkel
Publikasjon

Anode effect initiation during aluminium electrolysis in a two-compartment laboratory cell

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1341401

Most laboratory cells used in the investigation of the alumina reduction process use a single anode. When investigating the initiation of the anode effect an approach with more than one anode might give better results, as the probability of obtaining partial anode effect is higher. Additionally, the...

Forfattere Åsheim Henrik Aarhaug Thor Anders Sandnes Espen Kjos Ole S. Solheim Asbjørn Kolås Steinar Haarberg Geir Martin
År 2016
Type Tidsskriftsartikkel
Publikasjon

Behavior of sodium sulfate in cryolite-alumina melts and formation of sulfurous gases

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1298561

The study of the behavior of sulfur compounds in the Hall-Heroult process is of particular interest not only due to the emitted harmful gases, but also its potential effect on the process of aluminum production. The source of sulfurous gases from aluminum smelters is mainly the carbon anodes, which ...

Forfattere Meirbekova Rauan Haarberg Geir Martin Thonstad Jomar Aarhaug Thor Anders Sævarsdóttir Gudrun A.
År 2015
Type Tidsskriftsartikkel
Publikasjon

A laboratory study of partial anode effects during aluminium electrowinning

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1283379

The behaviour of graphitic anodes during electrolysis in low-alumina cryolite melts was investigated. The experimental setup consisted of two anodes in separate electrolyte compartments connected in parallel with a single combined cathode. The results show that the anodes to some extent will vary th...

Forfattere Åsheim Henrik Aarhaug Thor Anders Sandnes Espen Kjos Ole S. Solheim Asbjørn Haarberg Geir Martin
År 2015
Type Tidsskriftsartikkel
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