Browsing NTNU Open by Author "Svingen, Bjørnar"

Now showing items 1-12 of 12

    • Analysis and improvement of a mathematical turbine model 

      Reines, Ane Følgesvold (Master thesis, 2020)
      I denne masteroppgaven har en matematisk modell for vannkraftturbiner blitt analysert. Modellen er basert på en "grunnprinsipp"-tilnærming, hvilket gjør den fysisk korrekt og anvendbar for enhver turbin. Den ble utviklet ...

    • Dynamic Behavior of Reversible Pump-Turbines in Turbine Mode of Operation 

      Walseth, Eve Cathrin (Doctoral theses at NTNU;2016:202, Doctoral thesis, 2016)
      Reversible pump-turbines, with their steep and s-shaped characteristics, have proven throughout history to be a challenge with regards to both stability and transients. The aim of this thesis is to increase our understanding ...

    • Effektregulering av vannkraftverk med Peltonturbiner 

      Riise, Tarjei Lid (Master thesis, 2016)
      Denne masteroppgaven er en fortsettelse av prosjektoppgaven "Dynamisk dimensjonering av vannkraftverk". Evanger kraftverk skal rehabiliteres. Kraftverket er driftet av BKK og er Norges 10. største. Ønsket er nå å oppnå mer ...

    • Energy measurements at Ylja Hydropower Plant 

      Brath, Trine (Master thesis, 2018)
      The purpose of this master thesis was to take fieldmeasurements and find the energy distribution in the cross section at different distances from a Pelton turbine. According to IEC60041: 1991, thermodynamic efficiency ...

    • Fluid Structure Interaction in a Pipe 

      Bø, Anders Thorstad (Master thesis, 2018)
      One of the recurring challenges concerning the development of fluid piping systems, is making them suitable for the task at hand. The system has to withstand all possible forces and motions associated with everyday use, ...

    • Measuring the dynamic characteristics of a low specific speed pump-Turbine model 

      Walseth, Eve Cathrin; Nielsen, Torbjørn Kristian; Svingen, Bjørnar (Journal article; Peer reviewed, 2016)
      This paper presents results from an experiment performed to obtain the dynamic characteristics of a reversible pump-turbine model. The characteristics were measured in an open loop system where the turbine initially was ...

    • Modeling and Simulation of Hydropower Plant in Scilab 

      Rognaldsen, Erik (Master thesis, 2017)
      A hydro power plant is modeled in a computer application called Scilab, an open source MATLAB clone with capabilities to create block diagrams and do system simulations. The system is designed to do both frequency regulation ...

    • Planning, start-up and testing of a pipe flow loop for the investigation of transient characteristics 

      Hansen, Eirik Myrvold (Master thesis, 2017)
      This thesis concerns the design, planning, initial testing and evaluation of a pipe flow loop. The pipe flow loop will later be used in experiments on fluid transients, meaning that the design must be suitable for this ...

    • Prosjektering av måleutstyr og kompressor for luftputekammer 

      Laache, Lars (Master thesis, 2016)
      Sauland 2 er eit elvekraftverk under prosjektering. Kraftverket planlegger å nytte luftputekammer, og som elvekraftverk er kort nedetid ved fylling av kammeret essensielt for økonomien. Luftputekammer er viktig for å ...

    • The Effect of Surge Tank Throttling on Governor Stability, Power Control, and Hydraulic Transients in Hydropower Plants 

      Vereide, Kaspar; Svingen, Bjørnar; Nielsen, Torbjørn Kristian; Lia, Leif (Journal article; Peer reviewed, 2017)
      This paper investigates the effect of surge tank throttling on governor stability, power control, and hydraulic transients in hydropower plants. The work is intended to be practical, but includes some new research. The ...

    • Transient Modelling of Hydropower Plants 

      Valåmo, Simen Bomnes (Master thesis, 2016)
      Any changes of the volume flow through a turbine gives acceleration or deceleration of the masses of water in the penstock. This induces dynamic pressure changes in front of the turbine. A pressure transient must be ...

    • Undersøkelse av NVF 2020 relatert til vannkraftverk 

      Bergh, Øyvind (Master thesis, 2020)
      Statnett reviderer dokumentet som definerer funksjonskravene for turbinregulatorer i norske vannkraftverk. Revisjonen er en del av en større europeisk reform med hensikt å løse frekvensproblemer i det nordiske synkronnettet. ...