Recent Submissions

  • State-of-the-Art for the use of Phase-Change Materials in Tanks Coupled with Heat Pumps 

    Pardiñas, Ángel Á.; Alonso, Maria Justo; Diz, Rubén; Kvalsvik, Karoline Husevåg; Fernandez-Seara, Jose (Journal article; Peer reviewed, 2017)
    With the goal of increasing heat storage in the same accumulation volumes, phase-change materials are considered. There are different substances with different phase-change temperatures that can be used for storing heating ...
  • CEDREN final report 

    Harby, Atle (Report, 2017-09-06)
  • Measured load profiles and heat use for “low energy buildings” with heat supply from district heating 

    Ulseth, Rolf; Lindberg, Karen Byskov; Georges, Laurent; Alonso, Maria Justo; Utne, Åmund (Journal article; Peer reviewed, 2017)
    In the development towards nearly zero energy buildings (nZEB) the load profiles for the heat demand and the heat use of the buildings are expected to be changed considerably compared to the situation today. This change ...
  • State-of-the-Art for the use of Phase-Change Materials in Tanks Coupled with Heat Pumps 

    Pardiñas, Ángel Á.; Alonso, Maria Justo; Diz, Rubén; Kvalsvik, Karoline Husevåg; Fernandez-Seara, Jose (Journal article; Peer reviewed, 2017)
    With the goal of increasing heat storage in the same accumulation volumes, phase-change materials are considered. There are different substances with different phase-change temperatures that can be used for storing heating ...
  • The Water Footprint of Hydropower Production—State of the Art and Methodological Challenges 

    Bakken, Tor Haakon; Killingtveit, Ånund; Alfredsen, Knut (Journal article; Peer reviewed, 2017)
    This paper reviews published estimates of water consumption from hydropower production and the methodologies applied. Published values range from negative to more than 115 000 m3 MWh−1. Most gross water consumption rates ...
  • Applying successive linear programming for stochastic short-term hydropower optimization 

    Belsnes, Michael Martin; Wolfgang, Ove; Follestad, Turid; Aasgård, Ellen Krohn (Journal article; Peer reviewed, 2016)
    We present a model for operational stochastic short-term hydropower scheduling, taking into account the uncertainty in future prices and inflow, and illustrate how the benefits of using a stochastic rather than a deterministic ...
  • Optimizing day-ahead bid curves in hydropower production 

    Aasgård, Ellen Krohn; Naversen, Christian Øyn; Fodstad, Marte; Skjelbred, Hans Ivar (Journal article; Peer reviewed, 2017)
    In deregulated electricity markets, hydropower producers must bid their production into the day-ahead market. For price-taking producers, it is optimal to offer energy according to marginal costs, which for hydropower are ...
  • SOVN Model Implementation : method, functionality and details 

    Helseth, Arild; Mo, Birger; Henden, Arild Lothe; Warland, Geir (SINTEF Energi. Rapport;TR A7618, Research report, 2017)
    The SOVN project ("Stokastisk optimaliseringsmodell for Norden med individuelle vannverdier og nettrestriksjoner") aimed at creating a new fundamental hydro-thermal market model with detailed representation of the hydropower ...
  • Space-time variability of climate variables and intermittent renewable electricity production – A review 

    Engeland, Kolbjørn; Borga, Marco; Cretuin, Jean-Domenique; Francois, Baptiste; Ramos, Maria-Helena; Vidal, Jean-Philippe (Journal article; Peer reviewed, 2017)
    A major part of renewable electricity production is characterized by a large degree of intermittency driven by the natural variability of climate factors such as air temperature, wind velocity, solar radiation, precipitation, ...
  • Testing av småkraftverks FRT-egenskaper 

    Kirkeby, Henrik; Høivik, Øivind (SINTEF Energi. Rapport;TR A7622, Research report, 2017)
  • Case Study on the Socio-Economic Benefit of Allowing Active Power Curtailment to Postpone Grid Upgrades 

    Kolstad, Magne Lorentzen; Wolfgang, Ove; Josefsen, Rolf Håkan (Journal article; Peer reviewed, 2017)
    The penetration of distributed generation is rapidly increasing in the power system. Traditionally, a fit-and-forget approach has been applied for grid integration of distributed generation, by investing in a grid capacity ...
  • Optimal design and routing of power lines; ecological, technical and economic perspectives (OPTIPOL). Progress Report 2011 

    Bevanger, Kjetil Modolv; Bartzke, Gundula; Brøseth, Henrik; Dahl, Espen Lie; Gjershaug, Jan Ove; Hanssen, Frank Ole; Jacobsen, Karl-Otto; Kvaløy, Pål; May, Roelof Frans; Meås, Roger; Nygård, Torgeir; Refsnæs, Steinar; Stokke, Sigbjørn; Thomassen, Jørn (NINA rapport;, Research report, 2011)
    Overall the activities in 2011 have developed satisfactorily and in accordance with the project schedule. The wildlife and power-line corridor subproject is focusing the moose habitat use of the clear-felled area beneath ...
  • Recommended revisions of Norwegian emission factors for wood stoves 

    Seljeskog, Morten; Goile, Franziska; Skreiberg, Øyvind (Journal article; Peer reviewed, 2017)
    In this paper we present recommended revisions of emission factors for Norwegian wood stoves. Emission factors exist for a number of emissions to air, and vary in a wide range between individual studies depending on the ...
  • Technical documentation of the NOWIcob tool ( D5.1-66) 3.1 model version 

    Hofmann, Matthias; Sperstad, Iver Bakken; Kolstad, Magne Lorentzen (SINTEF Energi. Rapport;TR A7374, Research report, 2014)
    This report describes the current version of the NOWIcob model that has been developed primarily in NOWITECH WP5 and FAROFF. The description is related to the version 3.1 of the model and contains a general introduction ...
  • Thermal Properties of organic Foods : DSC analysis og apple, carrot, pork, salmon and salmon oil 

    Bantle, Michael; Tolstorebrov, Ignat (SINTEF Rapport;2017:00021, Research report, 2017)
    Thermal properties of selected organic products were investigated using novel DSC technique and methods of determination. The report includes determination of freezing temperatures, glass transition temperatures, amount ...
  • Apparent impedance analysis: A new method for power system stability analysis 

    Rygg, Atle; Amin, Mohammad; Molinas Cabrera, Maria Marta; Gustavsen, Bjørn Alfred (IEEE Workshop on Control and Modeling for Power Electronics, COMPEL;2016, Chapter, 2016)
    In this paper a new method for power system stability analysis is introduced. The method is based on injection of a small voltage or current in an arbitrary point of the system. The apparent impedance is defined as the ...
  • Policy framework for the interaction between buildings and the energy system in Norway 

    Knudsen, Jørgen Kjetil; Dalen, Kari (SINTEF Energi. Rapport;TR A7453, Research report, 2014)
    This report provides an assessment of the impacts of the current policy and regulatory framework upon efficient energy usage, management of increased energy surpluses, storage and exchanges in and between buildings in ...
  • Rasjonell klippfiskproduksjon 

    Indergård, Erlend; Bantle, Michael; Claussen, Ingrid Camilla (SINTEF Energi. Rapport;TR A7459, Research report, 2014)
    Prosjektet Rasjonell klippfiskproduksjon hadde som hovedmål å anbefale en rasjonell produksjon av klippfisk med jevn kvalitet for økt produksjon, effektivisering av arbeid samt reduserte drifts- og energikostnader. Prosjektet ...
  • El-certificates in EMPS model 

    Wolfgang, Ove; Jaehnert, Stefan (SINTEF Energi. Rapport;TR A7452, Research report, 2014)
    This report documents how the el-certificate market has been implemented in EMPS as one extra area in the model. The reservoir storage for the new area represents the net balance for the certificate market. In this way, ...
  • User guide for the NOWIcob tool (D5.1-75) 

    Hofmann, Matthias; Sperstad, Iver Bakken; Kolstad, Magne Lorentzen (SINTEF Energi. Rapport;TR A7372, Research report, 2014)
    This user guide describes the installation procedure of the NOWIcob model and how analyses can be performed with NOWIcob. The model can be used for analysing and providing decision support on maintenance and logistics ...

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