• Case study on optimal design and operation of detached house energy system: Solar, battery, and ground source heat pump 

      Nordgård-Hansen, Ellen Marie; Kishor, Nand; Midttømme, Kirsti; Risinggård, Vetle Kjær; Kocbach, Jan (Peer reviewed; Journal article, 2021)
      Government policy impacts the level of sustainability for which houseowners design and operate their energy system. Consequently, there is a need to consider the sustainability level resulting from different policies, ...
    • Electrical conditions in 3-phase submerged arc furnaces: learning from the ElMet project 

      Halvorsen, Svenn Anton; Sparta, Manuel; Risinggård, Vetle Kjær; Fromreide, Mads (Journal article, 2021)
      ElMet is the short name for a competence project (2015-2020) on electrical conditions in 3-phase submerged arc furnaces (SAFs). In the project, NORCE has cooperated closely with The Norwegian University of Science and ...
    • An Overall Furnace Model for the Silicomanganese Process 

      Sparta, Manuel; Risinggård, Vetle Kjær; Einarsrud, Kristian Etienne; Halvorsen, Svenn Anton (Journal article; Peer reviewed, 2021)
      Controlling and optimizing smelting processes in submerged-arc furnaces are complicated by the limited amount of information available regarding the internal conditions. Computer models can help to bridge this knowledge ...
    • Performance study and life-cycle cost analysis of a ground-source heat-pump system in a commercial building in Norway 

      Risinggård, Vetle Kjær; Sivertsen, Ove; Thisted, Ulrik; Midttømme, Kirsti (Peer reviewed; Journal article, 2022)
      High-performance systems are a prerequisite for profitable borehole thermal-energy storage. This paper presents performance measures for a system operating at a seasonal performance factor of 4.5 and evaluates the life-cycle ...
    • Sidestrømmer i trevareindustrien 

      Risinggård, Vetle Kjær (Research report, 2023)
      Utnyttelsen av sidestrømmer blant medlemsbedriftene til Tre på Agder er kartlagt ved hjelp av en spørreundersøkelse. Materialrester og avkapp går i dag hovedsakelig til forbrenning. Kvalitet trekkes fram som en viktig grunn ...
    • Treavfall på Agder 

      Risinggård, Vetle Kjær (Research report, 2022)
      Mengden treavfall på Agder er kartlagt basert på Statistisk sentralbyrås sektorinndeling. Denne består av husholdningene, byggeaktivitet, industrien og de tjenesteytende næringene. Det er tildels store usikkerheter i ...
    • Understanding Scale-Up of High-Current Electrodes 

      Halvorsen, Svenn Anton; Herland, Egil Vålandsmyr; Sparta, Manuel; Risinggård, Vetle Kjær (Peer reviewed; Journal article, 2023)
      A simple and generic model for the heat distribution in electrodes for primary metal production has been investigated. The equations have been analyzed focusing on understanding the scale-up of electrodes under both direct ...
    • Utnyttelse av spillvarme i Lista Renewable Energy Park 

      Risinggård, Vetle Kjær; Nordgård-Hansen, Ellen Marie (Research report, 2020)
      I denne rapporten er det sett på utradisjonelle bruksområder for spillvarme fra en battericellefabrikk med temperatur fra 35–40 °C og opp mot 80 °C. Mellomlagring av spillvarme for utjevning av variasjoner i produksjon ...