Navigation

  • Skip to Content
NTNU Home

ntnu.edu

  • Studies
    • Master's programmes in English
    • For exchange students
    • PhD opportunities
    • All programmes of study
    • Courses
    • Financing
    • Language requirements
    • Application process
    • Academic calendar
    • FAQ
  • Research and innovation
    • NTNU research
    • Research excellence
    • Strategic research areas
    • Innovation resources
    • PhD opportunities
  • Life and housing
    • Student in Trondheim
    • Student in Gjøvik
    • Student in Ålesund
    • For researchers
    • Life and housing
  • About NTNU
    • Contact us
    • Faculties and departments
    • Libraries
    • International researcher support
    • Vacancies
    • About NTNU
    • Maps
  1. Employees

Språkvelger

Norsk

Torbjørn Kristiansen Nielsen

Torbjørn Kristiansen Nielsen

Affiliated
Department of Energy and Process Engineering

torbjorn.nielsen@ntnu.no
+4773593572 +4791897572 Vannkraftlaboratoriet, 2. etg, 24, Gløshaugen, Alfred Getz vei 4
Publications Media

Publications

  • Chronological
  • By category
  • See all publications in Cristin

2022

  • Kelele, Hailay Kiros; Frøyd, Lars; Kahsay, Mulu Bayray; Nielsen, Torbjørn Kristian. (2022) Characterization of Aerodynamics of Small Wind Turbine Blade for Enhanced Performance and Low Cost of Energy. Energies
    Academic article

2021

  • Cavazzini, Giovanna; Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2021) Hydropower. World Scientific
    Academic chapter/article/Conference paper

2020

  • Kelele, Hailay Kiros; Nielsen, Torbjørn Kristian; Froyd, Lars; Kahsay, Mulu Bayray. (2020) Catchment Based Aerodynamic Performance Analysis of Small Wind Turbine Using a Single Blade Concept for a Low Cost of Energy. Energies
    Academic article

2019

  • Perkunder, Magnus Farstad; Nielsen, Torbjørn Kristian; Faudot, Celine. (2019) Investigation of fluid transients in a penstock attached to a Francis turbine rig using seismic interferometry. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Dhital, Tilak Chand; Nielsen, Torbjørn Kristian. (2019) Flow and efficiency measurements with clamp-on ultrasonic equipment. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Mdee, Ombeni John; Kimambo, Cuthbert Z.M.; Nielsen, Torbjørn Kristian; Kihedu, Joseph. (2019) Analytical Evaluation of Head and Flow Rate Off-Design Characteristics for Pump as Turbine Application. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Svingen, Bjørnar; Nielsen, Torbjørn Kristian. (2019) Transient hydraulic calculations with a linear turbine model derived from a nonlinear synthetic model. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Nielsen, Torbjørn Kristian; Svingen, Bjørnar; Vilberg, Ingrid Kristine. (2019) The elastic property of water and penstock's effect on the governor stability. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Trivedi, Chirag; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2019) Francis-99 Workshop 3: Fluid structure interaction. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Vilberg, Ingrid Kristine; Kjeldsen, Morten; Escaler, Xavier; Ekanger, Jarle Vikør; Nielsen, Torbjørn Kristian. (2019) Influence of draft tube water injection system on cavitation behaviour in a full-scale Francis turbine with visual access. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Svarstad, Magni Fjørtoft; Nielsen, Torbjørn Kristian. (2019) Pressure pulsations during a fast transition from pump to turbine mode of operation in laboratory and field experiment. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article

2018

  • Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2018) Simulation and Discussion of Models for Hydraulic Francis Turbine Simulations. IFAC-PapersOnLine
    Academic article
  • Svarstad, Magni Fjørtoft; Nielsen, Torbjørn Kristian. (2018) Fast transition from pump to turbine mode of operation. International Journal of Fluid Machinery and Systems
    Academic article
  • Li, Deyou; Wang, Hongjie; Li, Zhenggui; Nielsen, Torbjørn Kristian; Goyal, Rahul; Wei, Xianzhu. (2018) Transient characteristics during the closure of guide vanes in a pump-turbine in pump mode. Renewable Energy
    Academic article

2017

  • Cervantes, Michel; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2017) Francis-99 Workshop 2: transient operation of Francis turbines. Journal of Physics: Conference Series (JPCS)
    Editorial
  • Gong, Ruzhi; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2017) Blade passage modeling strategy for hydraulic turbine. International Journal of Fluid Machinery and Systems
    Academic article
  • Vereide, Kaspar; Svingen, Bjørnar; Nielsen, Torbjørn Kristian; Lia, Leif. (2017) The Effect of Surge Tank Throttling on Governor Stability, Power Control, and Hydraulic Transients in Hydropower Plants. IEEE transactions on energy conversion
    Academic article
  • Li, Deyou; Wang, Hongjie; Nielsen, Torbjørn Kristian; Gong, Ruzhi; Wei, Xianzhu; Qin, Daqing. (2017) Influence of guide vane setting in pump mode on performance characteristics of a pump-turbine. International Journal of Fluid Machinery and Systems
    Academic article

2016

  • Wiborg, Erik Jacques; Nielsen, Torbjørn Kristian. (2016) Continuous Efficiency Measurements on Hydro Power Plants. Doktoravhandlinger ved NTNU (2016:330)
    Doctoral dissertation
  • Vereide, Kaspar; Lia, Leif; Nielsen, Torbjørn Kristian. (2016) Hydraulics and Thermodynamics of Closed Surge Tanks for Hydropower Plants. Doktoravhandlinger ved NTNU (20)
    Doctoral dissertation
  • Li, Deyou; Wang, Hongjie; Nielsen, Torbjørn Kristian; Gong, Ruzhi; Wei, Xianzhu; Qin, Daqing. (2016) Influence of guide vane setting in pump mode on performance characteristics of a pump-turbine. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Walseth, Eve Cathrin; Nielsen, Torbjørn Kristian; Svingen, Bjørnar. (2016) Measuring the dynamic characteristics of a low specific speed pump-Turbine model. Energies
    Academic article
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2016) Experimental methods and design of a Pelton bucket. Doktoravhandlinger ved NTNU (2016:01)
    Doctoral dissertation
  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian; Thapa, Bhola. (2016) Effects of sediment erosion in guide vanes of Francis turbines. Skipnes Kommunikasjon as
    Doctoral dissertation
  • Li, Deyou; Wang, Hongjie; Chen, Jinxia; Nielsen, Torbjørn Kristian; Qin, Daqing; Wei, Xianzhu. (2016) Hysteresis characteristic in the hump region of a pump-turbine model. Energies
    Academic article

2015

  • Cervantes, Michel; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2015) Francis-99 Workshop 1: steady operation of Francis turbines. Journal of Physics: Conference Series (JPCS)
    Editorial
  • Escaler, Xavier; Ekanger, Jarle Vikør; Francke, Håkon Hjort; Kjeldsen, Morten; Nielsen, Torbjørn Kristian. (2015) Detection of Draft Tube Surge and Erosive Blade Cavitation in a Full-Scale Francis Turbine. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Vereide, Kaspar; Tekle, Torbjørn; Nielsen, Torbjørn Kristian. (2015) Thermodynamic Behaviour and Heat Transfer in Closed Surge Tanks for Hydropower Plants. Journal of Hydraulic Engineering
    Academic article
  • Vereide, Kaspar; Lia, Leif; Nielsen, Torbjørn Kristian. (2015) Hydraulic scale modelling and thermodynamics of mass oscillations in closed surge tanks. Journal of Hydraulic Research
    Academic article
  • Nielsen, Torbjørn Kristian. (2015) Simulation model for Francis and Reversible Pump Turbines. International Journal of Fluid Machinery and Systems
    Academic article
  • Nocente, Alessandro; Arslan, Tufan; Nielsen, Torbjørn Kristian. (2015) Numerical Simulation of Flow inside Centrifugal Pump by two different Solvers. International Center for Numerical Methods in Engineering (CIMNE)
    Academic chapter/article/Conference paper
  • Nocente, Alessandro; Arslan, Tufan; Nielsen, Torbjørn Kristian. (2015) Numerical Prediction of a Multistage Centrifugal Pump Performance With Stationary and Moving Mesh. The American Society of Mechanical Engineers (ASME)
    Academic chapter/article/Conference paper

2014

  • Nielsen, Torbjørn Kristian; Storli, Pål-Tore Selbo. (2014) Measurements and simulations of turbines on common grid. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2014) Dynamic load on a Francis turbine runner from simulations based on measurements. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Nielsen, Torbjørn Kristian; Svarstad, Magni Fjørtoft. (2014) Unstable behaviour of RPT when testing turbine characteristics in the laboratory. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Kaunda, Chiyembekezo Suzgo; Kimambo, C.Z.; Nielsen, Torbjørn Kristian. (2014) A technical discussion on microhydropower technology and its turbines. Renewable and Sustainable Energy Reviews
    Academic article
  • Kaunda, Chiyembekezo Suzgo; Kimambo Z, Cuthbert; Nielsen, Torbjørn Kristian. (2014) A numerical investigation of flow profile and performance of a low cost Crossflow turbine. The International Journal of Energy and Environment
    Academic article

2013

  • Zhao, Wei; Billdal, Jan Tore; Nielsen, Torbjørn Kristian; Brekke, Håvard. (2013) Study on the leakage flow through a clearance gap between two stationary walls. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Nielsen, Torbjørn Kristian. (2013) Hydropower and pumped storage. World Scientific
    Academic chapter/article/Conference paper
  • Harby, Atle; Sauterleute, Julian; Korpås, Magnus; Killingtveit, Ånund; Solvang, Eivind; Nielsen, Torbjørn Kristian. (2013) Pumped Storage Hydropower. Wiley-VCH
    Academic chapter/article/Conference paper

2012

  • Olimstad, Grunde; Nielsen, Torbjørn Kristian; Børresen, Bjarne. (2012) Stability Limits of Reversible-Pump Turbines in Turbine Mode of Operation and Measurements of Unstable Characteristics. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Olimstad, Grunde; Nielsen, Torbjørn Kristian; Børresen, Bjarne. (2012) Dependency on Runner Geometry for Reversible-Pump Turbine Characteristics in Turbine Mode of Operation. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article

2011

  • Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2011) Transient Friction in Pressurized Pipes. II: Two-Coefficient Instantaneous Acceleration-Based Model. Journal of Hydraulic Engineering
    Academic article
  • Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2011) Transient Friction in Pressurized Pipes. III: Investigation of the EIT Model Based on Position-Dependent Coefficient Approach in MIAB Model. Journal of Hydraulic Engineering
    Academic article
  • Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2011) Transient Friction in Pressurized Pipes. I: Investigation of Zielke's Model. Journal of Hydraulic Engineering
    Academic article

2010

  • Ramdal, Jørgen; Nielsen, Torbjørn Kristian; Jonsson, Pontus P.. (2010) Influence from bends on a pressure-time measurement. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Doorman, Gerard L.; Killingtveit, Ånund; Nielsen, Torbjørn Kristian. (2010) Norsk vannkraft og klimatrusselen. Adresseavisen
    Feature article

2007

  • Antonsen, Øyvind; Nielsen, Torbjørn Kristian. (2007) Unsteady flow in wicket gate and runner with focus on static and dynamic load on runner. NTNU
    Doctoral dissertation

2002

  • Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2002) Status for mini- og mikrokraftverk i Norge. Vannkraftlaboratoriet, NTNU
    Report
  • Nielsen, Torbjørn Kristian. (2002) Status for mini- og mikrovannkraftverk i Norge. [Mangler utgivernavn]
    Report

1990

  • Nielsen, Torbjørn Kristian. (1990) Transient Characteristics of High Head Francis Turbines. NTNU
    Doctoral dissertation

Journal publications

  • Kelele, Hailay Kiros; Frøyd, Lars; Kahsay, Mulu Bayray; Nielsen, Torbjørn Kristian. (2022) Characterization of Aerodynamics of Small Wind Turbine Blade for Enhanced Performance and Low Cost of Energy. Energies
    Academic article
  • Kelele, Hailay Kiros; Nielsen, Torbjørn Kristian; Froyd, Lars; Kahsay, Mulu Bayray. (2020) Catchment Based Aerodynamic Performance Analysis of Small Wind Turbine Using a Single Blade Concept for a Low Cost of Energy. Energies
    Academic article
  • Perkunder, Magnus Farstad; Nielsen, Torbjørn Kristian; Faudot, Celine. (2019) Investigation of fluid transients in a penstock attached to a Francis turbine rig using seismic interferometry. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Dhital, Tilak Chand; Nielsen, Torbjørn Kristian. (2019) Flow and efficiency measurements with clamp-on ultrasonic equipment. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Mdee, Ombeni John; Kimambo, Cuthbert Z.M.; Nielsen, Torbjørn Kristian; Kihedu, Joseph. (2019) Analytical Evaluation of Head and Flow Rate Off-Design Characteristics for Pump as Turbine Application. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Svingen, Bjørnar; Nielsen, Torbjørn Kristian. (2019) Transient hydraulic calculations with a linear turbine model derived from a nonlinear synthetic model. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Nielsen, Torbjørn Kristian; Svingen, Bjørnar; Vilberg, Ingrid Kristine. (2019) The elastic property of water and penstock's effect on the governor stability. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Trivedi, Chirag; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2019) Francis-99 Workshop 3: Fluid structure interaction. Journal of Physics: Conference Series (JPCS)
    Academic article
  • Vilberg, Ingrid Kristine; Kjeldsen, Morten; Escaler, Xavier; Ekanger, Jarle Vikør; Nielsen, Torbjørn Kristian. (2019) Influence of draft tube water injection system on cavitation behaviour in a full-scale Francis turbine with visual access. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Svarstad, Magni Fjørtoft; Nielsen, Torbjørn Kristian. (2019) Pressure pulsations during a fast transition from pump to turbine mode of operation in laboratory and field experiment. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2018) Simulation and Discussion of Models for Hydraulic Francis Turbine Simulations. IFAC-PapersOnLine
    Academic article
  • Svarstad, Magni Fjørtoft; Nielsen, Torbjørn Kristian. (2018) Fast transition from pump to turbine mode of operation. International Journal of Fluid Machinery and Systems
    Academic article
  • Li, Deyou; Wang, Hongjie; Li, Zhenggui; Nielsen, Torbjørn Kristian; Goyal, Rahul; Wei, Xianzhu. (2018) Transient characteristics during the closure of guide vanes in a pump-turbine in pump mode. Renewable Energy
    Academic article
  • Cervantes, Michel; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2017) Francis-99 Workshop 2: transient operation of Francis turbines. Journal of Physics: Conference Series (JPCS)
    Editorial
  • Gong, Ruzhi; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2017) Blade passage modeling strategy for hydraulic turbine. International Journal of Fluid Machinery and Systems
    Academic article
  • Vereide, Kaspar; Svingen, Bjørnar; Nielsen, Torbjørn Kristian; Lia, Leif. (2017) The Effect of Surge Tank Throttling on Governor Stability, Power Control, and Hydraulic Transients in Hydropower Plants. IEEE transactions on energy conversion
    Academic article
  • Li, Deyou; Wang, Hongjie; Nielsen, Torbjørn Kristian; Gong, Ruzhi; Wei, Xianzhu; Qin, Daqing. (2017) Influence of guide vane setting in pump mode on performance characteristics of a pump-turbine. International Journal of Fluid Machinery and Systems
    Academic article
  • Li, Deyou; Wang, Hongjie; Nielsen, Torbjørn Kristian; Gong, Ruzhi; Wei, Xianzhu; Qin, Daqing. (2016) Influence of guide vane setting in pump mode on performance characteristics of a pump-turbine. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Walseth, Eve Cathrin; Nielsen, Torbjørn Kristian; Svingen, Bjørnar. (2016) Measuring the dynamic characteristics of a low specific speed pump-Turbine model. Energies
    Academic article
  • Li, Deyou; Wang, Hongjie; Chen, Jinxia; Nielsen, Torbjørn Kristian; Qin, Daqing; Wei, Xianzhu. (2016) Hysteresis characteristic in the hump region of a pump-turbine model. Energies
    Academic article
  • Cervantes, Michel; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2015) Francis-99 Workshop 1: steady operation of Francis turbines. Journal of Physics: Conference Series (JPCS)
    Editorial
  • Escaler, Xavier; Ekanger, Jarle Vikør; Francke, Håkon Hjort; Kjeldsen, Morten; Nielsen, Torbjørn Kristian. (2015) Detection of Draft Tube Surge and Erosive Blade Cavitation in a Full-Scale Francis Turbine. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Vereide, Kaspar; Tekle, Torbjørn; Nielsen, Torbjørn Kristian. (2015) Thermodynamic Behaviour and Heat Transfer in Closed Surge Tanks for Hydropower Plants. Journal of Hydraulic Engineering
    Academic article
  • Vereide, Kaspar; Lia, Leif; Nielsen, Torbjørn Kristian. (2015) Hydraulic scale modelling and thermodynamics of mass oscillations in closed surge tanks. Journal of Hydraulic Research
    Academic article
  • Nielsen, Torbjørn Kristian. (2015) Simulation model for Francis and Reversible Pump Turbines. International Journal of Fluid Machinery and Systems
    Academic article
  • Nielsen, Torbjørn Kristian; Storli, Pål-Tore Selbo. (2014) Measurements and simulations of turbines on common grid. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2014) Dynamic load on a Francis turbine runner from simulations based on measurements. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Nielsen, Torbjørn Kristian; Svarstad, Magni Fjørtoft. (2014) Unstable behaviour of RPT when testing turbine characteristics in the laboratory. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Kaunda, Chiyembekezo Suzgo; Kimambo, C.Z.; Nielsen, Torbjørn Kristian. (2014) A technical discussion on microhydropower technology and its turbines. Renewable and Sustainable Energy Reviews
    Academic article
  • Kaunda, Chiyembekezo Suzgo; Kimambo Z, Cuthbert; Nielsen, Torbjørn Kristian. (2014) A numerical investigation of flow profile and performance of a low cost Crossflow turbine. The International Journal of Energy and Environment
    Academic article
  • Zhao, Wei; Billdal, Jan Tore; Nielsen, Torbjørn Kristian; Brekke, Håvard. (2013) Study on the leakage flow through a clearance gap between two stationary walls. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Olimstad, Grunde; Nielsen, Torbjørn Kristian; Børresen, Bjarne. (2012) Stability Limits of Reversible-Pump Turbines in Turbine Mode of Operation and Measurements of Unstable Characteristics. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Olimstad, Grunde; Nielsen, Torbjørn Kristian; Børresen, Bjarne. (2012) Dependency on Runner Geometry for Reversible-Pump Turbine Characteristics in Turbine Mode of Operation. Journal of Fluids Engineering - Trancactions of The ASME
    Academic article
  • Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2011) Transient Friction in Pressurized Pipes. II: Two-Coefficient Instantaneous Acceleration-Based Model. Journal of Hydraulic Engineering
    Academic article
  • Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2011) Transient Friction in Pressurized Pipes. III: Investigation of the EIT Model Based on Position-Dependent Coefficient Approach in MIAB Model. Journal of Hydraulic Engineering
    Academic article
  • Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2011) Transient Friction in Pressurized Pipes. I: Investigation of Zielke's Model. Journal of Hydraulic Engineering
    Academic article
  • Ramdal, Jørgen; Nielsen, Torbjørn Kristian; Jonsson, Pontus P.. (2010) Influence from bends on a pressure-time measurement. IOP Conference Series: Earth and Environmental Science (EES)
    Academic article
  • Doorman, Gerard L.; Killingtveit, Ånund; Nielsen, Torbjørn Kristian. (2010) Norsk vannkraft og klimatrusselen. Adresseavisen
    Feature article

Part of book/report

  • Cavazzini, Giovanna; Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2021) Hydropower. World Scientific
    Academic chapter/article/Conference paper
  • Nocente, Alessandro; Arslan, Tufan; Nielsen, Torbjørn Kristian. (2015) Numerical Simulation of Flow inside Centrifugal Pump by two different Solvers. International Center for Numerical Methods in Engineering (CIMNE)
    Academic chapter/article/Conference paper
  • Nocente, Alessandro; Arslan, Tufan; Nielsen, Torbjørn Kristian. (2015) Numerical Prediction of a Multistage Centrifugal Pump Performance With Stationary and Moving Mesh. The American Society of Mechanical Engineers (ASME)
    Academic chapter/article/Conference paper
  • Nielsen, Torbjørn Kristian. (2013) Hydropower and pumped storage. World Scientific
    Academic chapter/article/Conference paper
  • Harby, Atle; Sauterleute, Julian; Korpås, Magnus; Killingtveit, Ånund; Solvang, Eivind; Nielsen, Torbjørn Kristian. (2013) Pumped Storage Hydropower. Wiley-VCH
    Academic chapter/article/Conference paper

Report

  • Wiborg, Erik Jacques; Nielsen, Torbjørn Kristian. (2016) Continuous Efficiency Measurements on Hydro Power Plants. Doktoravhandlinger ved NTNU (2016:330)
    Doctoral dissertation
  • Vereide, Kaspar; Lia, Leif; Nielsen, Torbjørn Kristian. (2016) Hydraulics and Thermodynamics of Closed Surge Tanks for Hydropower Plants. Doktoravhandlinger ved NTNU (20)
    Doctoral dissertation
  • Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2016) Experimental methods and design of a Pelton bucket. Doktoravhandlinger ved NTNU (2016:01)
    Doctoral dissertation
  • Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian; Thapa, Bhola. (2016) Effects of sediment erosion in guide vanes of Francis turbines. Skipnes Kommunikasjon as
    Doctoral dissertation
  • Antonsen, Øyvind; Nielsen, Torbjørn Kristian. (2007) Unsteady flow in wicket gate and runner with focus on static and dynamic load on runner. NTNU
    Doctoral dissertation
  • Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2002) Status for mini- og mikrokraftverk i Norge. Vannkraftlaboratoriet, NTNU
    Report
  • Nielsen, Torbjørn Kristian. (2002) Status for mini- og mikrovannkraftverk i Norge. [Mangler utgivernavn]
    Report
  • Nielsen, Torbjørn Kristian. (1990) Transient Characteristics of High Head Francis Turbines. NTNU
    Doctoral dissertation

Media

2018

  • Academic lecture
    Svingen, Bjørnar; Nielsen, Torbjørn Kristian. (2018) First principles approach linear model for hydraulic turbines suitable for use in available simulation platforms. BHR Group Pressure Surges 2018 , Bordeaux 2018-11-14 - 2018-11-16
  • Academic lecture
    Nielsen, Torbjørn Kristian; Svingen, Bjørnar; Vilberg, Ingrid Kristine. (2018) The elastic property of water and penstock’s effect on the governor stability. IAHR 29th IAHR Symposium on Hydraulic Machinery and Systems , Kyoto 2018-09-16 - 2018-09-21
  • Academic lecture
    Vilberg, Ingrid Kristine; Kjeldsen, Morten; Svingen, Bjørnar; Nielsen, Torbjørn Kristian. (2018) Experimental assessment of pressure pulsations and transient characteristics of a 1400 m pipe line. BHR Group Pressure Surges 2018 , Bordeaux 2018-11-14 - 2018-11-16
  • Academic lecture
    Vilberg, Ingrid Kristine; Kjeldsen, Morten; Arndt, Roger E. A.; Nielsen, Torbjørn Kristian. (2018) The effect of gas content on cavitation shedding and test facility dynamics. 10th International Symposium on Cavitation (CAV2018) 2018-05-14 - 2018-05-16
  • Popular scientific lecture
    Nydal, Ole Jørgen; Nielsen, Torbjørn Kristian. (2018) African University Collaboration on Renewable Energy. NTNU Innspill seminar NTNU , Trondheim 2018-01-11 - 2018-01-11
  • Academic lecture
    Svingen, Bjørnar; Nielsen, Torbjørn Kristian. (2018) Transient Hydraulic Calculations with a Linear Turbine Model derived from a Nonlinear Synthetic Model. IAHR 29th IAHR Symposium on Hydraulic Machinery and Systems , Kyoto 2018-09-16 - 2018-09-21

2016

  • Lecture
    Nocente, Alessandro; Arslan, Tufan; Jasinski, Daniel; Nielsen, Torbjørn Kristian. (2016) A Study of Flow inside a Centrifugal Pump: High Performance Numerical Simulations Using GPU cards . ISROMAC16 - International Symposium on Transport Phenomena and Dynamics of Rotating Machinery , Honolulu, HI 2016-04-10 - 2016-04-15

2014

  • Interview
    Snøfugl, Ingvil; Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar; Lia, Leif. (2014) Nytt vannkraftsenter skal lokke ungdom vekk fra oljebransjen. Teknisk Ukeblad nettavis Teknisk Ukeblad nettavis [Internet] 2014-02-10
  • Interview
    Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian; Lundgren, Silje Strand. (2014) Vannkraft: Europas grønne batteri. Under Dusken Under Dusken [Journal] 2014-03-11
  • Lecture
    Wiborg, Erik Jacques; Hulaas, Harald; Francke, Håkon Hjort; Nielsen, Torbjørn Kristian. (2014) Applied statistical quality control on field measurement data. International Gruop of Hydro Efficiency Measurements IGHEM 2014 , Itajuba 2014-09-06 - 2014-09-19
  • Academic lecture
    Vereide, Kaspar; Lia, Leif; Nielsen, Torbjørn Kristian. (2014) Physical Modelling of Hydropower Waterway with Air Cushion Surge Chamber (ISBN 9781742721156). IAHR 5th International Symposium on Hydraulic Structures , Brisbane 2014-06-25 - 2014-06-25

2013

  • Academic lecture
    Harby, Atle; Sauterleute, Julian; Korpås, Magnus; Killingtveit, Ånund; Solvang, Eivind; Nielsen, Torbjørn Kristian. (2013) Pumped Storage Hydropower. DECHEMA 3rd International Conference on Energy Process Engineering , Frankfurt am Main 2013-06-04 - 2013-06-06

2012

  • Academic lecture
    Olimstad, Grunde; Nielsen, Torbjørn Kristian; Børresen, Bjarne. (2012) Geomatry Impact on Pump-Turbine Characteristics. ISROMAC , Honolulu 2012-02-27 - 2012-03-03
  • Academic lecture
    Olimstad, Grunde; Nielsen, Torbjørn Kristian; Børresen, Bjarne. (2012) A Two-Dimensional Model for Pump-Turbine Instability Investigations. ISROMAC 2012-02-27 - 2012-03-03
  • Academic lecture
    Walseth, Eve Cathrin; Svingen, Bjørnar; Nielsen, Torbjørn Kristian. (2012) Investigation of a 1D-model for simulating the characteristics of a high head Francis turbine. Technische Universität Darmstadt 14th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery. ISROMAC-14 , Honolulu, Hawaii 2012-02-27 - 2012-03-02
  • Academic lecture
    Walseth, Eve Cathrin; Svingen, Bjørnar; Nielsen, Torbjørn Kristian. (2012) Comprehensive experimental study of instability in a reversible pump-turbine model at no-load operation. Hydro 2012 2012-10-29 - 2012-10-31

2011

  • Academic lecture
    Walseth, Eve Cathrin; Svingen, Bjørnar; Nielsen, Torbjørn Kristian. (2011) Investigating the effect of turbine characteristics on the pressure response of a system. IAHR IAHR 4th international conference on cavitation and dynamic problems in hydraulic machinery and systems , Beograd 2011-10-26 - 2011-10-28
  • Academic lecture
    Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2011) The quality of Norwegian grid frequency and the consequences for pumped storage. SHF Pumped Storage Powerplants , Lyon 2011-11-23 - 2011-11-24

2010

  • Academic lecture
    Jonsson, Pontus P.; Ramdal, Jørgen; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2010) The Pressure-Time measurements project at LTU and NTNU. Indian Institute of Technology / IGHEM International Group for Hydraulic Efficiency Measurements , Roorkee 2010-10-21 - 2010-10-23
  • Academic lecture
    Kobro, Einar; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar. (2010) Data Analysis From Onboard Francis Model Runner Pressure Measurements. University of Tokyo, Japan The 13th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery , Honolulu, Hawaii 2010-04-04 - 2010-04-09
  • Academic lecture
    Ramdal, Jørgen; Jonsson, Pontus P.; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2010) Uncertainties for Pressure-Time Efficiency Measurements. Indian Institute of Technology International Group for Hydraulic Efficiency Measurements , Roorkee 2010-10-21 - 2010-10-23
  • Academic lecture
    Ramdal, Jørgen; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar. (2010) UNCERTAINTY AND PERFORMANCE OF A LOW HEAD THERMODYNAMIC MEASUREMENT. Indian Institute of Technology / IGHEM International Group for Hydraulic Efficiency Measurements , Roorkee 2010-10-21 - 2010-10-23
  • Academic lecture
    Walseth, Eve Cathrin; Nielsen, Torbjørn Kristian. (2010) Reversible Pumped Hydro-Benefits and Challenges. The Centre for Renewable Energy Renewable Energy Research Conference , Trondheim 2010-06-07 - 2010-06-08
  • Academic lecture
    Nielsen, Torbjørn Kristian; Olimstad, Grunde. (2010) Dynamic Behaviour of Reversible Pump-Turbines in Turbine Mode of Operation. ISROMAC 2010-04-04 - 2010-04-07
  • Academic lecture
    Zhao, Wei; Nielsen, Torbjørn Kristian; Billdal, Jan Tore. (2010) Effects of Cavity on Leakage Loss in Straight-though Labyrinth Seals. 25th IAHR Symposium on Hydraulic Machinery and Systems , Timisoara 2010-09-20 - 2010-09-24
  • Academic lecture
    Zhao, Wei; Nielsen, Torbjørn Kristian; Billdal, Jan Tore. (2010) An Experimental Study on Leakage Flow in Different Geometrical Disk Seals. 9th International Conference on Hydrodynamics , Shanghai 2010-10-11 - 2010-10-15

2009

  • Academic lecture
    Kobro, Einar; Gamboa, Alphonse; Bloch, Reinhard; Nielsen, Torbjørn Kristian. (2009) ONBOARD PRESSURE MEASUREMENT IN HIGH HEAD FRANCIS PROTOTYPE RUNNERS. IAHR 3rd IAHR International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems, , Brno 2009-10-14 - 2009-10-16
  • Academic lecture
    Ramdal, Jørgen; Jonsson, Pontus P.; Nielsen, Torbjørn Kristian; Cervantes, Michel. (2009) Finding Inertia Constants for Bends related to a Modified Gibson Method. IAHR 3rd IAHR International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hyrdraulic Machinery and System , Brno 2009-10-14 - 2009-10-16
  • Academic lecture
    Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2009) Improving the performance of instantaneous acceleration based models using curved coefficients. IAHR 3rd Internartional Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems , Brno 2009-10-14 - 2009-10-16
  • Academic lecture
    Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2009) Curved friction coefficients for better fit with experimental results. Deltares International Meeting on “Unsteady friction in pipes, ducts and channels” , Delft 2009-05-06 - 2009-05-07
  • Academic lecture
    Nielsen, Torbjørn Kristian. (2009) System Dynamics in Hydro Power. Vattenfall 3rd Nordic Conference in Fluid Dynamics , Köbenhavn 2009-09-15 - 2009-09-16
  • Poster
    Ramdal, Jørgen; Nielsen, Torbjørn Kristian; Jonsson, Pontus P.; Cervantes, Michel. (2009) FINDING INERTIA TIME CONSTANTS FOR BENDS RELATED TO A MODIFIED GIBSON’S METHOD. IAHR 3rd IAHR Int. meeting of the workgroup on cavitation and dynamic problems in Hydarulic machinery , Brno 2009-10-14 - 2009-10-16
  • Popular scientific lecture
    Nielsen, Torbjørn Kristian. (2009) Hva betur turbinvirkningsgraden på inntekten. Energi Norge Småkraftverk konferanse , Gardermoen 2009-03-09 -
  • Popular scientific lecture
    Nielsen, Torbjørn Kristian. (2009) Hydro Power. ISFIT/NTNU ISFIT 09 , Trondheim 2009-09-08 - 2009-09-09
  • Popular scientific lecture
    Nielsen, Torbjørn Kristian. (2009) Vannkraft i verden. Energi Norge Maskinmøte 09 , Trondheim 2009-12-10 -

2008

  • Academic lecture
    Ramdal, Jørgen; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar. (2008) Decreasing uncertainty in thermodynamic measurement. IAHR IAHR Symposium on Hydraulic Machinery and systems , Foz do Iguassu, Brazil 2008-10-27 - 2008-10-31
  • Academic lecture
    Kobro, Einar; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2008) Onboard Pressure Measurement In Francis Model Runner Blades. IAHR 24th IAHR Symposium on Hydraulic Machinery and Systems , Foz do Iguazzu 2008-10-27 - 2008-10-31
  • Academic lecture
    Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2008) NON- STATIONARY, FREQUENCY DEPENDENT FRICTION IN HYDRAULIC PIPE SYSTEMS; AN INVESTIGATION OF THE ZIELKE MODEL. 24th IAHR Symposium on Hydraulic Machinery and Systems 2008-10-27 - 2008-10-31

2006

  • Academic lecture
    Svingen, Bjørnar; Nielsen, Torbjørn Kristian; Skaare, Per Egil. (2006) On transient problems in Norwegian Power Plants, and solution by transient analysis and interactive simulators using LVTrans. IAHR IAHR International meeting of WG on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems , Barcelona 2006-06-20 - 2006-06-30
  • Academic lecture
    Svingen, Bjørnar; Brekke, Terje; Skaare, Per Egil; Nielsen, Torbjørn Kristian. (2006) Minimizing oscillations and transients for large and rapid changes in power output from hydro power plants by new control algorithms. IAHR 23th IAHR Symposium , Yokohama 2006-10-17 - 2006-10-20
  • Academic lecture
    Nielsen, Torbjørn Kristian; Røyrvik, Johnny; Ramdal, Jørgen; Dahlhaug, Ole Gunnar. (2006) Propeller turbine with two contra-rotating impellers and built in generators. IAHR 23th IAHR Symposium , Yokohama 2006-10-17 - 2006-10-20
  • Academic lecture
    Antonsen, Øyvind; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar; Billdal, Jan Tore. (2006) Pressure pulses in Francis Turbines vs. guide vane design. The Int. Association of Hydraulic Engineering and Research 23rd IAHR Symposium on Hydraulic Machinery and Systems , Yokohama 2006-10-17 - 2006-10-21
  • Academic lecture
    Kjeldsen, Morten; Olsen, Knut Magne; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar. (2006) Water injection for the mitigation of draft tube pressure pulsations. IAHR IAHR Int. Meeting on Cavitation and Dynamic Problems , Barcelona 2006-06-28 - 2006-06-30
  • Academic lecture
    Antonsen, Øyvind; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar. (2006) Experimental and Theoretical Investigations of the Flow Field at the Inlet of a Francis Runner. HCI-Publication HydroVision 2006 , Portland, Oregon 2006-08-01 - 2006-08-04
  • Academic lecture
    Dahlhaug, Ole Gunnar; Kobro, Einar; Skåre, Per Egil; Nielsen, Torbjørn Kristian; Thapa, Bhola. (2006) Efficiency loss in Pelton buckets due to sediment erosion. The Int. Association of Hydraulic Engineering and Research 23rd IAHR Symposium on Hydraulic Machinery and Systems , Yokohama 2006-10-17 - 2006-10-21
  • Academic lecture
    Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian; Brandåstrø, Bård Aslak; Francke, Håkon Hjort; Hulaas, Harald. (2006) Comparison between pressure-time and thermodynamic efficiency measurements on a low head turbine. The International Group for Hydraulic Efficiency Measurement IGHEM 2006 , Portland, Oregon 2006-07-30 - 2006-08-01

2005

  • Interview
    Nielsen, Torbjørn Kristian. (2005) Opp av bølgedalen. Ukeavisen Ledelse, Nyskaping Ukeavisen Ledelse, Nyskaping [Newspaper] 2005-12-01
  • Interview
    Nielsen, Torbjørn Kristian. (2005) Bygger kraftverk under vann. Teknisk ukeblad Teknisk ukeblad [Newspaper] 2005-07-23
  • Interview
    Nielsen, Torbjørn Kristian. (2005) Vil ta kraft fra bølgene. Dagens Næringsliv Dagens Næringsliv [Newspaper] 2005-06-24
  • Interview
    Nielsen, Torbjørn Kristian. (2005) Distriktsnyheter Sogn og fjordane vedr. bølgekraft. NRK Sogn og fjordane NRK Sogn og fjordane [Radio] 2005-06-25
  • Interview
    Nielsen, Torbjørn Kristian. (2005) Ubegripelig kraftsatsing. Teknisk ukeblad Teknisk ukeblad [Newspaper] 2005-07-23
  • Academic lecture
    Dahlhaug, Ole Gunnar; Thapa, Bhola; Nielsen, Torbjørn Kristian; Ruud, Jonas Jessen. (2005) Thermodynamic efficiency measurement of Khimti Hydropower Plant and assessment of sand erosion on turbine components. International Center for Hydropower, ICH Hydropwer �05, The Backbone of Sustainable Energy Supply. , Stavanger 2005-05-23 - 2005-05-25
  • Popular scientific lecture
    Nielsen, Torbjørn Kristian. (2005) Fornybar energi i startgropa-salt, bølger, havstrøm og sol. Norges vassdrags- og energidirektorat Norges energidager 2005 , Oslo 2005-10-20 - 2005-10-21

2004

  • Interview
    0lsen, Claude R.; Falnes, Johannes; Nielsen, Torbjørn Kristian; Rostrup, Jørgen. (2004) Nytt liv for bølgekraften. EuroPower, juni 2004, 2(6) , vedlegg til Dagens Næringsliv EuroPower, juni 2004, 2(6) , vedlegg til Dagens Næringsliv [Newspaper] 2004-06-25
  • Academic lecture
    Nielsen, Torbjørn Kristian. (2004) Frequency and load regulatig ability of water power plants exposed to Load ramping. IAHR, Vattenfall IAHR Symposium , Stockholm 2004-06-29 - 2004-07-02
  • Academic lecture
    Antonsen, Øyvind; Nielsen, Torbjørn Kristian. (2004) CFD simulation of von Karman vortex shedding. IAHR, VAttenfall IAHR Symposium , Stockholm 2004-06-29 - 2004-07-02
  • Academic lecture
    Pettersen, Kristin; Nielsen, Torbjørn Kristian; Billdal, Jan Tore. (2004) An explanation to steep speed-flow characteristics of RPTs. IAHR, Vattenfall IAHR Symposium , Stockholm 2004-06-29 - 2004-07-02

2003

  • Programme participation
    Nielsen, Torbjørn Kristian. (2003) Schrødingers katt: uttalelse om nytt elvekraft konsept. NRK, Schrødingers katt NRK, Schrødingers katt [TV] 2003-11-27
  • Academic lecture
    Nielsen, Torbjørn Kristian. (2003) Om turbiner og anlegg for små vannkraftverk. Norsk Elektroteknisk forening; Dagseminar småkraftverk , Oslo 2003-10-30 -
  • Academic lecture
    Nielsen, Torbjørn Kristian; Antonsen, Øyvind. (2003) CFD simulation of von Karman vortex shedding. IAHR Work Group , Stuttgart, Germany 2003-10-10 -
NTNU
Studies
  • Master's programmes in English
  • For exchange students
  • PhD opportunities
  • Courses
  • Career development
  • Continuing education
  • Application process
Contact
  • Contact NTNU
  • Employees
  • For alumni
  • Press contacts
  • Researcher support
Discover NTNU
  • Experts
  • Vacancies
  • Pictures from NTNU
  • Innovation resources
  • NTNU in Gjøvik
  • NTNU in Trondheim
  • NTNU in Ålesund
  • Maps
About NTNU
  • NTNU's strategy
  • Research excellence
  • Strategic research areas
  • Organizational chart
  • Libraries
  • About the university
Services
  • For employees
  • For students
  • Blackboard
  • Intranet

Norwegian University of Science and Technology

Use of cookies
Accessibility statement (in Norwegian)
Privacy policy
Editorial responsibility
Sign In