Blar i Publikasjoner fra CRIStin - SINTEF Energi på tidsskrift "Energy Procedia"

Viser treff 21-40 av 87

    • Combining thermodynamic and fluid flow modelling for CO2 flow assurance 

      Munkejord, Svend Tollak; Bernstone, Christian; Clausen, Sigmund; de Koeijer, Gelein; Mølnvik, Mona J. (Journal article; Peer reviewed, 2013)
      The present paper concerns the importance of a combined modelling and experimental effort to develop physicsbased combined thermodynamic and transient flow models for CO2-transport pipelines. Such models need to handle ...

    • Comprehensive assessment of CCS chains–Consistent and transparent methodology 

      Jakobsen, Jana Poplsteinova; Brunsvold, Amy; Husebye, Jo; Hognes, Erik Skontorp; Myhrvold, Tore; Friis-Hansen, P.; Hektor, E A; Torvanger, Asbjørn (Peer reviewed; Journal article, 2011)
      Through combining insights from engineering, natural sciences, economics, and political science, one consistent, transparent, and comprehensive analytical framework for assessing and evaluating various CCS chains is ...

    • Control system for start-up and shut-down of a floating vertical axis wind turbine 

      Svendsen, Harald Georg; Merz, Karl Otto (Peer reviewed; Journal article, 2013)
      A baseline control system for the Deepwind floating vertical axis wind turbine (VAWT) concept is analysed with em- phasis on start-up and shut-down schemes. The turbine concept includes a rotating spar with a 2-bladed rotor ...

    • Coordinated Control between Wind and Hydro Power Systems through HVDC Links 

      Endegnanew, Atsede Gualu; Øyslebø, Eirik Veirød; Huertas-Hernando, Daniel; Bakken, Bjørn Harald (Peer reviewed; Journal article, 2012)
      The main objective of this paper is to show how the control systems on wind farm turbines, HVDC cables and power generating units can be coordinated to improve power system balance in the event of a wind farm shut down due ...

    • Depressurization of carbon dioxide in pipelines- Models and methods 

      Lund, Halvor; Flåtten, Tore; Munkejord, Svend Tollak (Journal article; Peer reviewed, 2011)
      A model for two-phase carbon dioxide transport with phase transfer in pipelines is presented. The stiffened-gas equation of state is used for calculating thermodynamical properties. The convergence and accuracy of two ...

    • Depressurization of CO2 – a Numerical Benchmark Study 

      Clausen, Sigmund; Munkejord, Svend Tollak (Journal article; Peer reviewed, 2012)
      A numerical benchmark study has been performed, comparing results from the OLGA pipeline simulator to data obtained using the multi-stage (MUSTA) centred scheme. The case considered is a depressurization of a pipeline. ...

    • Developing a Pilot Case and Modelling the Development of a Large European CO2 Transport Infrastructure -The GATEWAY H2020 Project 

      Jakobsen, Jana Poplsteinova; Bysveen, Marie; Vågenes, Elisabeth Tanami; Eickhoff, Charles; Mikunda, Tom; Neele, Filip; Brunner, L; Heffron, R.; Schumann, D; Downes, L.; Hanstock, D. (Journal article; Peer reviewed, 2017)
      The H2020 GATEWAY project aims to develop a comprehensive model Pilot Case which, intentionally, will pave the ground for CCS deployment in Europe. It will result from the assessment of, technical, commercial, judicial and ...

    • Development of a scale model of a Modular Multilevel Converters 

      Ljøkelsøy, Kjell; Guidi, Giuseppe (Peer reviewed; Journal article, 2017)
      Modular Multilevel Converters are now being introduced in the power grid. Control systems for these converters are complex with many degrees of freedom. Simulation models are useful for exploring control algorithms, but ...

    • Development of small versus large hydropower in Norway– comparison of environmental impacts 

      Bakken, Tor Haakon; Sundt, Håkon; Ruud, Audun; Harby, Atle (Peer reviewed; Journal article, 2012)
      This study has compared the accumulated environmental impacts from 27 small-scale hydropower plants with 3 large hydropower projects. The results show a slight tendency that large hydropower has a lower degree of impacts ...

    • The economic value of CO2 for EOR applications 

      Roussanaly, Simon; Grimstad, Alv-Arne (Peer reviewed; Journal article, 2014)
      While most works on CCS in connection with CO2 EOR credit all the benefit of the additional oil production to the CCS entity, this work investigate the impact of alternative EOR methods on the valuation on CO2 EOR storage. ...

    • Effect of fuel mixing on melting behavior of spruce wood ash 

      Wang, Liang; Skreiberg, Øyvind; Khalil, Roger Antoine; Li, Hailong (Journal article, 2019)
      The aim of this work was to investigate effects of fuel mixing on melting behavior of spruce wood ash. Spruce bark was studied as additive fuel regarding its ability to lower the melting and flowing temperature of spruce ...

    • Energy and Cost Evaluation of A Low-temperature CO2 Capture Unit for IGCC plants 

      Berstad, David Olsson; Roussanaly, Simon; Skaugen, Geir; Anantharaman, Rahul; Nekså, Petter; Jordal, Kristin (Peer reviewed; Journal article, 2014)
      The application of CO2 capture by liquefaction has been investigated for an integrated gasification combined cycle (IGCC). Two configurations of the process are developed–one supplying CO2 at conditions suitable for pipeline ...

    • An engineering model for dynamic wind power plant flow 

      Merz, Karl Otto (Peer reviewed; Journal article, 2017)
      An engineering method is developed for the prediction of dynamic flow through a wind power plant, in the presence of turbine control actions. The model is composed of a simplified steady-state boundary layer model of ...

    • Evaluation of a pre-combustion capture cycle based on hydrogen fired gas turbine with exhaust gas recirculation (EGR) 

      Ditaranto, Mario; Li, Hailong; Hu, Yukun (Peer reviewed; Journal article, 2014)
      Pre-combustion capture technology is a promising route to power generation with CO2 free emissions, by transforming the fossil hydrocarbon fuel into a hydrogen rich fuel with near zero Carbon containing species. This gaseous ...

    • Evaluation of SPUNG* and Other Equations of State for Use in Carbon Capture and Storage Modelling 

      Wilhelmsen, Øivind; Skaugen, Geir; Jørstad, Oddvar; Li, Hailong (Journal article; Peer reviewed, 2012)
      In this work, Equations of State (EoS) relevant for carbon capture and storage modelling have been evaluated for pure CO2 and CO2-mixtures with particular focus on the extended corresponding state approach, SPUNG/SRK. Our ...

    • Experiments and modelling of two-phase transient flow during pipeline depressurization of CO2 with various N2 compositions 

      Drescher, Michael; Varholm, Kristoffer; Munkejord, Svend Tollak; Hammer, Morten; Held, Rudolf; De Koeijer, Gelein (Journal article; Peer reviewed, 2014)
      Pressure-release experiments of CO2 with impurity contents of 10, 20 and 30 mol% nitrogen have been executed. The experimental investigations were performed in a 140 m long horizontal tube with an inner diameter of 10 mm. ...

    • Frequency Quality in the Nordic Power System: Wind Variability, Hydro Power Pump Storage and Usage of HVDC Links 

      Endegnanew, Atsede Gualu; Farahmand, Hossein; Huertas-Hernando, Daniel (Peer reviewed; Journal article, 2013)
      This work investigates the effect that variable power production from offshore wind farms in the North Sea will have together with the use of pumped storage facilities at hydropower stations in Norway, on the Nordic ...

    • From droplets to process: Multilevel research approach to reduce emissions from LNG processes 

      Løvseth, Sigurd Weidemann; Snustad, Ingrid; Brunsvold, Amy; Skaugen, Geir; Wahl, Per Eilif; Lervåg, Karl Yngve (Peer reviewed; Journal article, 2015)
      In the Enabling Low-Emission LNG Systems project, SINTEF Energy Research and NTNU have since 2009 been developing knowledge and tools with the aim to enable environmental safe, cost-effective, and energy efficient LNG ...

    • Fulfilment of Grid Code Obligations by Large Offshore Wind Farms Clusters Connected via HVDC Corridors 

      Attya, A.B.; Anaya-Lara, Olimpo; Ledesma, P.; Svendsen, Harald Georg (Journal article; Peer reviewed, 2016)
      The foreseen high penetration levels of wind power will force the systems operators to apply restrictive constraints on wind power plants. The ability of offshore wind clusters, which are connected via HVDC, to fulfill the ...

    • GHGT-12 Performance of the IGCC with distributed feeding of H2 in the gas turbine burner 

      Jordal, Kristin; Anantharaman, Rahul; Gruber, Andrea; Peters, Thijs; Henriksen, Partow Pakdel; Berstad, David Olsson; Bredesen, Rune (Peer reviewed; Journal article, 2014)
      A main hurdle for realizing the IGCC with CO2 capture is the lack of gas turbines capable of burning hydrogen in an environmental-friendly, yet energy-efficient manner. With currently proposed combustion schemes an efficiency ...