Blar i NTNU Open på forfatter "Vereide, Kaspar"

Viser treff 21-40 av 41

    • Numerisk modellering av termodynamiske prosesser i luftputekammer 

      Kjøren, Erik (Master thesis, 2014)
      Det er i denne oppgaven utført numeriske simuleringer av en langvarig transient i et luftputekammer. Hovedfokuset har vært å gjenskape data fra feltmålinger av vannstand og trykk i luftputekammer ved magasinbytte i Jukla ...

    • Ombygging av kraftverk til pumpekraftverk med utgangspunkt i Røldal-Suldal kraft 

      Aske, Marianne (Master thesis, 2022)
      For å nå nullutslippsmålet innen 2050 blir det bygd ut fornybar kraftproduksjon for å erstatte fossile energikilder som olje, gass og kullkraft. Den største økningen i fornybar kraftutbygging skjer innenfor solkraft- og ...

    • Operation of Norwegian Hydropower Plants and Its Effect on Block Fall Events in Unlined Pressure Tunnels and Shafts 

      Neupane, Bibek; Vereide, Kaspar; Panthi, Krishna Kanta (Peer reviewed; Journal article, 2021)
      The main objective of this study is to investigate the effect of hydropower plant operation on the long-term stability of unlined pressure tunnels of hydropower plants in Norway. The authors analyzed the past production ...

    • Optimizing surge tank layout for highly flexible hydropower 

      Richter, Wolfgang; Vereide, Kaspar; Zenz, Gerald (Journal article; Peer reviewed, 2018)
      This article considers high-head hydropower schemes and pumped storage schemes that usually are considered as flexible power plants. Surge tanks are the key structural element in the hydropower scheme for flexible operation ...

    • Physical Modelling of Surge Tank Throttling 

      Landskaug, Robert Stigen (Master thesis, 2015)
      The scope of this master thesis is to design a surge tank throttle based on literature values, and compare the expected head loss factor with the results from a 3D numerical simulation, and a physical model test. A literature ...

    • Physical Modelling of Surge Tank Throttling 

      Landskaug, Robert Stigen (Master thesis, 2015)
      The scope of this master thesis is to design a surge tank throttle based on literature values, and compare the expected head loss factor with the results from a 3D numerical simulation, and a physical model test. A literature ...

    • Produksjonssimuleringar av Tjørhom pumpekraftverk 

      Egeland, Olav Magnus (Master thesis, 2022)
      Tjørhom og Tonstad kraftverk er to kraftverk eigd av Sira-Kvina. %Tjørhom kraftverk er leverer vatn til Tonstad. Låg installert effekt i Tjørhom, gjer at kraftverket produserar samanhengande vinterstid for å levere nok ...

    • Retrofitting of pressurized sand traps in hydropower plants 

      Richter, Wolfgang; Vereide, Kaspar; Mauko, Gašper; Havrevoll, Ola Haugen; Schneider, Josef; Zenz, Gerald (Peer reviewed; Journal article, 2021)
      Unlined pressure tunnels in sound rock, combined with pressurized sand traps at the downstream end, allow for low-cost construction of hydropower tunnel systems. This design concept is utilized in hydropower plants across ...

    • Simulering av pumpekraftverk i LVTrans 

      Havrevoll, Ola Haugen (Master thesis, 2013)
      Duge kraftverk er eit pumpekraftverk med effekt på 100 MW. I denne avhandlinga skulle det undersøkjast om kraftverket kan utvidast med større vassføring, og om det kan nyttast med hyppige avslag og pådrag. Duge kraftverk ...

    • Snow measurements with drones 

      Rynning, Erik Kleiven (Master thesis, 2019)
      Snømåling med drone ved bruk av fotogrammetri for å lage 3D modellar av eit område er ein ny teknologi som kan vere veldig nyttig for vasskraftselskap for å berekne snømagasin. Med det kan vasskraftselskapa finne forventa ...

    • Stability assessment of the asphalt concrete tunnel invert of Roskrepp hydropower project 

      Mong Urdal, Anna Helene (Master thesis, 2018)
      Rebuilding a hydropower plant into a pumped-storage plant in an underground tunnel, means that the water will rapidly change directions, instead of streaming evenly in one direction. This will cause extra water pressure ...

    • Surge Tank Atlas for Hydropower Plants 

      Sandvåg, Simon Utseth (Master thesis, 2016)
      The objective of this master's thesis is to describe the existing surge tank solutions and additional improvements, and to simulate the hydraulic behavior of the surge tanks and how it affects the hydropower plant. The ...

    • Surge Tank Atlas for Hydropower Plants 

      Sandvåg, Simon Utseth (Master thesis, 2016)
      The objective of this master's thesis is to describe the existing surge tank solutions and additional improvements, and to simulate the hydraulic behavior of the surge tanks and how it affects the hydropower plant. The ...

    • Surge Tank Research in Austria and Norway 

      Vereide, Kaspar; Richter, Wolfgang; Zenz, Gerald; Lia, Leif (Journal article, 2015)
      Modern high-head hydropower plants, and especially pumped storage plants (PSP), are designed with increasing high water discharge and higher requirements to flexible operation. To improve the hydraulic performance and allow ...

    • Technical Review of Existing Norwegian Pumped Storage Plants 

      Pitorac, Livia Ioana; Vereide, Kaspar; Lia, Leif (Peer reviewed; Journal article, 2020)
      This paper presents a technical review of the existing pumped storage plants in Norway. The power system is changing towards integrating more and more renewable energy, especially from variable renewable energy sources, ...

    • Technical Review of Existing Norwegian Pumped Storage Plants 

      Pitorac, Livia Ioana; Vereide, Kaspar; Lia, Leif (Peer reviewed; Journal article, 2020)
      This paper presents a technical review of the existing pumped storage plants in Norway. The power system is changing towards integrating more and more renewable energy, especially from variable renewable energy sources, ...

    • 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 ...

    • Thermodynamic Behaviour and Heat Transfer in Closed Surge Tanks for Hydropower Plants 

      Vereide, Kaspar; Tekle, Torbjørn; Nielsen, Torbjørn Kristian (Journal article; Peer reviewed, 2015)
      A numerical model of a hydraulic system with a closed surge tank is developed for evaluating the thermodynamic behavior during slow transients in the air pocket. The numerical model is used to evaluate the polytrophic ...

    • Tunnel System Design for the Kuli Pumped Hydro Storage Project 

      Saha, Sanjoy Kumar (Master thesis, 2020)
      From the beginning of 20th century, huge tensions rising about global warming and environmental pollution from utilizing fossil fuels enormously. Implementing pump hydro storage profoundly can reduce the extensive use of ...

    • Upgrading of Hydropower Plants to Pumped Storage Plants: Tunnel System Hydraulics 

      Pitorac, Livia Ioana (Doctoral theses at NTNU;2021:352, Doctoral thesis, 2021)
      Energy storage is needed to enable the transition from fossil to renewable electrical energy sources. As wind and solar power are unregulated and volatile, energy storage is necessary. Pumped hydro can deliver both short- ...