Blar i Fakultet for ingeniørvitenskap (IV) på tittel
Viser treff 11969-11988 av 23203
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Investigation of the Unsteady Pressure Pulsations in the Prototype Francis Turbines -Part 1: Steady State Operating Conditions
(Journal article, 2018)Hydropower is one of the most reliable renewable sources of electricity generation. With high efficiency and good regulating capacity, hydropower has the ability to meet rapid changes in power demand. Large investments in ... -
Investigation of the unsteady pressure pulsations in the prototype Francis turbines during load variation and startup
(Journal article; Peer reviewed, 2017)This work investigates the unsteady pressure fluctuations in two prototype Francis turbines during load variation and start-up. Although hydraulic turbines are expected to experience such events over their lifetime, the ... -
Investigation of the use of visualizations to improve public participation in infrastructure projects
(Master thesis, 2020)Utviklingen av Bygningsinformasjonsmodeller (BIM) og Geografiske Informasjonssystemer (GIS) har muliggjort nye metoder for visuell kommunikasjon til bruk i planleggingen av våre fysiske omgivelser. Bruk av digitale ... -
Investigation of the Wake Flow behind a stepped circular Cylinder using Particle Image Velocimetry
(Master thesis, 2012)Subject of the present study was the investigation of the wake behind stepped circular cylinders. Experiments were performed using particle image velocimetry (PIV). Cylinder models with diameter ratios D/d=1, D/d=6/5 and ... -
Investigation of thermal transport in polymer composites with percolating networks of silver thin films by the flash diffusivity method
(Journal article; Peer reviewed, 2017)The flash diffusivity method, also known as laser flash analysis (LFA), is commonly used to obtain the thermal diffusivity (α) and thermal conductivity (κ) of materials, due to its relative simplicity, rapid measurements, ... -
Investigation of Thermopressor with Incomplete Evaporation for Gas Turbine Intercooling Systems
(Peer reviewed; Journal article, 2023)One of the promising ways to increase fuel and modern gas turbine energy efficiency is using cyclic air intercooling between the stages of high- and low-pressure compressors. For intercooling, it is possible to use cooling ... -
Investigation of thrust loss due to steering while trawling
(Master thesis, 2017)This thesis investigates the potential for a reduction in required propeller power by optimizing the transverse position of attachment points for trawl warps, simulating a system of movable trawl blocks. Full scale ... -
Investigation of transcritical CO2 vapour compression systems by simulation and laboratory experiments
(Doktoravhandlinger ved NTNU, 1503-8181; 141, Doctoral thesis, 2002)The thesis presents the use of simulation tools and experimental data for investigation of various aspects of the transcritical CO2 vapour compression cycle. This is done through three papers, the first on design and ... -
Investigation of U-tube effect in drilling operation
(Master thesis, 2010)The U-tube effect is present when drilling with a low riser return system(LRRS)or a dual gradient system(DGS). For the LRRS the U-tube effect will initiate asthe surface mud pump is shut down. The mud level in the drill ... -
Investigation of unsteady flow in the vaneless gap between impeller and diffusor.
(Master thesis, 2016)I denne oppgaven er det undersøkt hvorvidt vibrasjoner i en vertikalsentrifugalpumpe stammer fra sekundærstrømninger i gapet mellom impellerog diffusor. En model av dette gapet ble laget ut fra arbeidstegninger overpumpen ... -
An investigation of using CO<inf>2</inf> heat pumps to charge PCM storage tank for domestic use
(Journal article; Peer reviewed, 2023)Current investigations mainly focused on onefold phase change material (PCM) storage tank charging process, while the integration between a heat-source device and a PCM storage tank has been seldom considered. The investigation ... -
Investigation of Vision Transformers for Visual Place Recognition
(Master thesis, 2021)Fremskritt innen autonom robotikk kan ha store konsekvenser for samfunnet som helhet i fremtiden. Et av de største hindrene som forhindrer virkelig autonome roboter er utfordringen med å skulle kunne sikkert lokalisere seg ... -
Investigation of WAG Potential using Compositional Model
(Master thesis, 2016)Water-alternating-gas (WAG) injection is a commonly used enhanced oil recovery (EOR) technique, for which the aim is to increase vertical sweep efficiency and reduce mobility of injected fluids by injecting water and gas ... -
Investigation of Water Injection Performance and Potential on Eldfisk - A Simulation Study
(Master thesis, 2014)Investigation of water injection performance and potential on Eldfisk, with the use of reservoir simulation. -
Investigation of wave transformation and breaking processes in the coastal zone using REEF3D
(Master thesis, 2018)Several human activities and industries that contribute in shaping the communities and economies around the world are located in the coastal zone. Therefore, it is very crucial to understand the behaviour of the coastal ... -
Investigation of wave-induced nonlinear load effects in open ships considering hull girder vibrations in bending and torsion
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:357, Doctoral thesis, 2012)For ships with open cross sections, such as container vessels, it is of primary importance to accurately estimate torsional moment (TM) and horizontal bending moment (HBM) as well as vertical load effects. In recent decades, ... -
Investigation of Wave-Induced ULS and ALS Characteristic Loads and Responses on a Pile Structure in the Ekofisk Area - Importance of Breaking Waves
(Master thesis, 2016)A set of metocean contour lines corresponding to annual exceedance probabilities of 10^(-2) and 10^(-4) describing the environmental conditions at the Ekofisk area are established based on hindcast data. These are divided ... -
investigation of which sea states yield the dominating contribution to fatigue accumulation in offshore structure
(Master thesis, 2015)In assessment of the fatigue damage, it has been assumed that the moderate sea states (significant wave height ranged between 4-8m) should have major influence on the offshore structures because they have relatively more ... -
Investigation on an Open Cycle Water Chiller based on Desiccant Dehumidification
(Master thesis, 2012)In this thesis, a novel open cycle desiccant dehumidification system is experimentally studied. The system is installed and operated at Shanghai Jiao Tong University (SJTU) as part of the Green Energy Laboratory (GEL) ...