Browsing Fakultet for ingeniørvitenskap (IV) by Title
Now showing items 9488-9507 of 23495
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Fremtidig utvikling i energiforbruk og CO2-utslipp for Norges boligmasse
(Research report, 2014) -
Fremtidsrettet energiforsyning for kommunale næringsbygninger i Oppdal sentrum
(Master thesis, 2023)Norge eier kommuner 25% av næringsbygninger som videre står for en tredjedel av energibru- ken i sektoren. Norske kommuner som reduserer energiforbruket i sine næringsbygg vil derfor bidra betydelig til det globale ... -
Fremtidsrettet energiforsyning for kommunale næringsbygninger i Oppdal sentrum
(Master thesis, 2023)Norge eier kommuner 25% av næringsbygninger som videre står for en tredjedel av energibru- ken i sektoren. Norske kommuner som reduserer energiforbruket i sine næringsbygg vil derfor bidra betydelig til det globale ... -
Fremtidsrettet konseptutvikling for pelagiske anlegg
(Bachelor thesis, 2021)Dette er en teknisk rapport utviklet av tre studenter ved NTNU i Ålesund. Henikten med prosjektet er å utvikle konsepter som er helautomatiske, fremtidsrettet og mer bærekraftige enn dagens anlegg for pakking av pelagisk ... -
Frequency based Wind Turbine Gearbox Fault Detection applied to a 750 kW Wind Turbine
(Journal article, 2014)Reliability and availability of modern wind turbines are of increasing importance, for two reasons. The first is due to the fact that power grids around in the world depends at a higher and higher degree on wind energy, ... -
Frequency controlled agglomeration of pt-nanoparticles in sonochemical synthesis
(Peer reviewed; Journal article, 2022)Optimizing the surface area of nanoparticles is key to achieving high catalytic activities for electrochemical energy conversion devices. In this work, the frequency range (200 kHz–500 kHz) for maximum sonochemical radical ... -
Frequency Dependence of Bilge Keels
(Master thesis, 2018)The goal of this master's thesis is to inspect the damping generated by bilge keels. Two dimensional cross sections have been modeled both with and without bilge keels and simulated using the computational fluid dynamics ... -
Frequency dependent elastic properties of shales – Impact of partial saturation and stress changes
(Doctoral theses at NTNU;2017:151, Doctoral thesis, 2017)Shales are the most common constituent of the overburden of conventional hydrocarbon reservoirs. As such, they have a strong influence on seismic waves and knowledge about overburden mechanical properties is required for ... -
Frequency domain modelling of a coupled system of floating structure and mooring Lines: An application to a wave energy converter
(Peer reviewed; Journal article, 2021)Floating structures for single offshore renewable energy devices, i.e. wave energy converters, tend to be significantly smaller than those of the traditional offshore industry and the interaction between floater motions ... -
Frequency-Dependent Aerodynamic Damping and Inertia in Linearized Dynamic Analysis of Floating Wind Turbines
(Journal article; Peer reviewed, 2020)In frequency-domain (FD) models of floating wind turbines (FWT), it is common to regard the interaction between nacelle motions and thrust by means of a constant aerodynamic damping coefficient. This approach is effective ... -
Frequency-dependent wave velocities in sediments and sedimentary rocks
(Doctoral theses at NTNU;2022:52, Doctoral thesis, 2022) -
Frequency-dependent wave velocities in sediments and sedimentary rocks: Laboratory measurements and evidences
(Journal article; Peer reviewed, 2016)The pioneering work of Mike Batzle and his colleagues has provided a fundamental understanding of mechanisms behind dispersion and attenuation of elastic waves in fluid-saturated rocks. It also has made way for a realization ... -
Frequency-depth-dependent spherical reflection response from the sea surface - a transmission experiment
(Journal article; Peer reviewed, 2018)In academia and the industry, there is an increasing interest in generating and recording low seismic frequencies, which lead to better data quality, deeper signal penetration and can be important for full-waveform inversion. ... -
Frequency-domain Method for Global Dynamic Response Analysis of a Semi-submersible Floating Wind Turbine
(Master thesis, 2018)The wind energy market is increasing. Developing offshore wind turbines has several advantages. Conventional time-domain methods in global dynamic response analysis are time-consuming. Inspired by this, the frequency-domain ... -
Frequency-domain Roll Motion Analysis of a Transportation Barge Using Stochastic Linearization of Viscous Roll Damping
(Master thesis, 2018)This thesis is proposed by DNV GL, and presents a comparative study of frequency-domain and time-domain analysis of the roll motion. The goal is to perform a roll motion analysis of a barge-cargo system considering linearized ... -
Freshwater plastispheres as a vector for foodborne bacteria and viruses
(Peer reviewed; Journal article, 2023)There is growing evidence that plastic particles can accumulate microorganisms that are pathogenic to humans or animals. In the current study, the composition of the plastispheres that accumulated on polypropylene (PP), ... -
Freznel zone in VTI and orthorhombic media
(Journal article; Peer reviewed, 2017)The reflecting zone in the subsurface insonified by the first quarter of a wavelength and the portion of the reflecting surface involved in these reflections is called the Fresnel zone or first Fresnel zone. The horizontal ... -
FRICTION AND WEAR OF COATINGS FOR SUBSEA GATE VALVES OPERATING AT HIGH TEMPERATURE AND PRESSURE
(Doctoral thesis at NTNU;2016:161, Doctoral thesis, 2016)Gate valves for subsea oil and gas operation work under harsh conditions. Proper design ensures the valves functional integrity over the designed lifetime of the valve. The design of the valve includes material choice ... -
Friction Factor Model and Interpretation of Real Time Data
(Master thesis, 2013)The interest in torque and drag issues has over the last years increased when the complexity of wells drilled has become higher. The petroleum industry continually expands the extended reach drilling envelope, which forces ... -
Friction Factors in Oil Wells through Analysis of Hook Load
(Master thesis, 2014)As the easy oil and gas is gone, there is today a need for more complex wells in orderto extract the remaining hydrocarbons. Over recent decades, both inclination andlength of drilled wells have increased significantly. ...