• Dynamic Model of an Ammonia Synthesis Reactor Based on Open Information 

      Jinasena, Asanthi; Lie, Bernt; Glemmestad, Bjørn (Chapter; Peer reviewed, 2016)
      Ammonia is a widely used chemical, hence the ammonia manufacturing process has become a standard case study in the scientific community. In the field of mathematical modeling of the dynamics of ammonia synthesis reactors, ...
    • Energy and Economic Analysis of Improved Absorption Configurations for CO2 Capture 

      Aromada, Solomon Aforkoghene; Øi, Lars Erik (Journal article; Peer reviewed, 2017)
      The shortcoming of amine-based CO2 absorption technology is the large heat demand for desorption and it requires huge capital investment. Thus, it is expedient to comprehensively and critically analyse alternative process ...
    • Exhaust flow mapping 

      Iversen, Evelina Anita; Ulberg, Helge Sondre; Flesaker, Ole Henrik; Bergstrøm, Stian; Orsten, Sondre Fuhre (Bachelor thesis, 2020)
      Vi fikk i oppdrag å designe en innovativ og effektiv måte å validere mønsteret av eksosgassen til en gassturbin. For å oppnå dette ble det brukt eksisterende teknologier basert på varmeveksler. Systemet produserer en ...
    • Improved model for solar heating of buildings 

      Lie, Bernt (Conference object; Peer reviewed, 2015-11-25)
      A considerable future increase in the global energy use is expected, and the effects of energy conversion on the climate are already observed. Future energy conversion should thus be based on resources that have negligible ...
    • Model based control for run-of-river system. Part 1: Model implementation and tuning 

      Vytvytskyi, Liubomyr; Sharma, Roshan; Lie, Bernt (Journal article; Peer reviewed, 2015)
      Optimal operation and control of a run-of-river hydro power plant depends on good knowledge of the elements of the plant in the form of models. River reaches are often considered shallow channels with free surfaces. A ...
    • Model based control for run-of-river system. Part 2: Comparison of control structures 

      Vytvytskyi, Liubomyr; Sharma, Roshan; Lie, Bernt (Journal article; Peer reviewed, 2015)
      Optimal operation and control of a run-of-river hydro power plant depend on good knowledge of the elements of the plant in the form of models. Both the control architecture of the system, i.e. the choice of inputs and ...
    • Modeling and Simulation of Triclosan Kinetics and Distribution in Humans Using a PBPK Model 

      Maharjan, Samee; Sharma, Roshan; Husøy, Trine; Dirven, Hubert; Andreassen, Monica; Lie, Bernt (Conference object; Peer reviewed, 2015-11-25)
      Personal care products (PCPs) such as soaps, perfumes, toothpastes, lotions, etc. contain various chemicals. Triclosan (TCS) is widely used as an antibacterial additive in PCPs. Traces of TCS are found in human plasma and ...
    • Modeling for control of run-of-river power plant Grønvollsfoss 

      Vytvytskyi, Liubomyr; Sharma, Roshan; Granstrøm, Ingunn; Lie, Bernt (Conference object; Peer reviewed, 2015-11-25)
      Design of optimal operation and control of a run-of-river hydro power plant depends on good models for the elements of the plant. River reaches are often considered to be shallow channels with free surface flow. A typical ...
    • Nursing students' perspectives on telenursing in patient care after simulation 

      Reierson, Inger Åse; Solli, Hilde; Bjørk, Ida Torunn (Journal article; Peer reviewed, 2015-04-01)
      Background: This article presents the perspectives of undergraduate nursing students on telenursing in patient care after simulating three telenursing scenarios using real-time video and audio technology. Methods: An ...
    • Orbital motion simulator 

      Ali, Haytham; Fjeld, Kjetil; Gunbjørnsen, Anders; Kallerud, Heidi; Sandberg, Martin; Thoresen, Fredrik (Bachelor thesis, 2016)
      The purpose of the present project is to design a system, on request by Kongsberg Protech Systems, that will enable rotation of a remote weapon station in isolation to, and in parallel axes offset to, a rotating turret in ...
    • Oxygen Effects in Anaerobic Digestion II 

      Botheju, Deshai; Lie, Bernt; Bakke, Rune (Journal article, 2010)
      Standard models describing bio-gasification using anaerobic digestion do not include necessary processes to describe digester dynamics under the conditions of oxygen presence. Limited oxygenation in anaerobic digestion can ...
    • Partial CO2 capture simulation and cost estimation 

      Sundbø, Erik (Master thesis, 2017)
      Simulation of CO2 absorption using amine solutions have been performed for many years at University College of Southeast Norway, both with and without vapor recompression. In this thesis, partial CO2 capture was evaluated ...
    • Simulation and Cost Comparison of CO2 Liquefaction 

      Øi, Lars Erik; Eldrup, Nils Henrik; Adhikari, Umesh; Bentsen, Mathias Håvåg; Badalge, Jayalanka Chathurangani Liyana; Yang, Songbo (Journal article; Peer reviewed, 2016)
      Liquefaction of CO2 is an intermediate step for storage or ship transport. Two processes are suggested. The traditional method is based on external refrigeration and the other is an integrated refrigeration process. In the ...
    • Simulation of improved absorption configurations for CO2 capture 

      Øi, Lars Erik; Aromada, Solomon Aforkoghene (Conference object; Peer reviewed, 2015-11-25)
      The most well-known technology for post combustion CO2 capture from exhaust gas is absorption in an amine-based solvent followed by desorption. The drawback of this method is the high heat consumption required for desorption. ...
    • Simulering av CO2-fjerning med aminer 

      Moholt, Bjørn (Master thesis, 2010-08-26)
      Gasskraftverk produserer store mengder CO2, og det er ønskelig å unngå utslipp av CO2 til atmosfæren. Skagerak Energi AS har planer om et gasskraftverk med CO2-fjerning i Grenlandsområdet. Det er utført simuleringer ...
    • Using CasADi for Optimization and Symbolic Linearization/Extraction of Causality Graphs of Modelica Models via JModelica.Org 

      Perera, M. Anushka S. (Research report, 2014-03-24)
      The Modelica language has become a handy modeling tool for multi-domain complex physical systems. Its object-oriented and equation-based approach eases the modeling process to a great extent. Dynamic models which are ...
    • Virtual WOCS : merging industrial control-systems with a virtual 3D-environment 

      Larsen, Leif Henning; Engell, Torjus; Hansen, Jan; Vukobratovic, Dejan (Bachelor thesis, 2011)
      The main purpose of the project is to enhance the Workover Control System (WOCS) by integrating it with a VR (Virtual Reality) application called Source. Source is a game engine produced by Valve, a corporation that made ...