Blar i NTNU Open på tittel
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Experimental Studies of Flow- and Electric Properties of Oil Droplets Including Suspended Clay Particles
(Master thesis, 2012)Experiments on oil droplets made of silicone oil and sodium-fluorohectorite (Na-Fh) clay particles suspended in castor oil were performed. The electric field (E-field)-induced structuring of clay particles placed inside ... -
Experimental Studies of Hydrogen as a Fuel Additive in Internal Combustion Engines
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:35, Doctoral thesis, 2008)Combustion of hydrocarbons in internal combustion engines results in emissions that can be harmful both to human health and to the environment. Although the engine technology is improving, the emissions of NOx, PM and UHC ... -
Experimental Studies of Instabilities Near the Sol-Gel Transition
(Master thesis, 2012)This master thesis presents a new experimental way to dynamically determinerheological properties of a complex fluid. The fluid investigated is asuspension of the synthetic clay mineral laponite of 3 wt%. This is mixedtogether ... -
Experimental Studies of Microbial Enhanced Oil Recovery
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:272, Doctoral thesis, 2012)The main purpose of this work was to understand the driving mechanisms by which the bacterium Rhodococcus sp. 094 increases oil recovery. The reason for only using this species was to thorougly investigate different aspects ... -
Experimental Studies of Monodisperse Pickering Emulsions Stabilized by Laponite Clay
(Master thesis, 2013)Experiments on oil-in-water Pickering emulsions stabilized by the disc-likesynthetic clay mineral Laponite were performed. Magnetic resonance imagingwas used to determine how the viscosity of the oil, the oil volume ... -
Experimental Studies of Self-organization from Electrically Polarized Clay Particles
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:279, Doctoral thesis, 2011) -
Experimental Studies of Smectite Clays: Colloids and Nanoporous Materials
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:215, Doctoral thesis, 2012)This thesis presents experimental work on two synthetic clay minerals: fluorohectorite and Laponite RD. Both are hectorite clays belonging to the widely studied smectite group of clays. The results presented can broadly ... -
Experimental Studies of Streamer Phenomena in Long Oil Gaps
(Doctoral Theses at NTNU, 1503-8181; 2013:106, Doctoral thesis, 2013)In this study, the characteristics of non-breakdown and breakdown streamers have been investigated through the effects of dissolved gases/air, carbon particles, additives, reduced pressure, liquid chemistry and voltage ... -
Experimental Studies of Stress Dependence,Static vs Dynamic behaviour and Mechanical Anisotropies of Shale
(Chapter, 2014)Laboratory data from controlled rock mechanical tests with various shales have been used to understand and quantify stress effects on wave velocities of relevance for 4D seismics, and to quantify the difference between ... -
Experimental Studies of the Acoustic Signal generated by Marine Seismic Sources
(Doctoral theses at NTNU;2019:80, Doctoral thesis, 2019)Marine seismic acquisition is the most commonly used geophysical technique to image the subsurface for different purposes, e.g. exploration of reservoirs or investigation of subduction zones as areas where earthquakes are ... -
Experimental Studies of the Two Phase Flow and Monodispersed Pickering Emulsions Stabilized by LaponiteRD in a Microfluidic T- Junction
(Master thesis, 2014)Monodispersed droplets were produced in a microfluidic T-junction by controlling flow rates of dispersed and continuous phases. The space between each droplet was controlled and it was similar between different droplets. ... -
Experimental studies of wave-ice interactions – insights into data analysis methods and their applications to studying the wave-induced responses of ice cover
(Doctoral theses at NTNU;2020:228, Doctoral thesis, 2020)Studies of wave-ice interactions include field and laboratory experiments, theoretical model developments, the implementation of these theoretical models in simulation tools, and the validation and calibration of these ... -
Experimental Studies on Municipal Solid Waste and Biomass Pyrolysis
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:125, Doctoral thesis, 2007)The introduction of this thesis (Chapters 1-9) presents the broader picture of waste management and thermal treatments (situation, trends and novel concepts) with a strong focus on nitrogen (N) in Chapter 6 (a summary of ... -
Experimental Studies on North Sea Rock Evaluating the Low Salinity Effect on Enhanced Oil Recovery and Permeability Reductions
(Master thesis, 2011)In this project the concept of low salinity water flooding is experimentally tested and discussed. Both the effect on enhanced oil recovery and the permeability reductions issues which can arise during low salinity flooding ... -
Experimental study and CFD simulation of water coning phenomenon in perforated geometry
(Master thesis, 2016)The focus of this thesis is to further examine the water coning phenomenon in annular geometry in a horizontal well completion. This phenomenon is of particular interest to the oil & gas industry, as it may restrict ... -
Experimental study and stress analysis of rock bolt anchorage performance
(Journal article; Peer reviewed, 2014)A new method was developed to apply pull-and-shear loads to the bolt specimen in order to evaluate the anchorage performance of the rebar bolt and the D-Bolt. In the tests, five displacing angles (0°, 20°, 40°, 60°, and ... -
Experimental Study for Wear Characteristics and Wear Prediction of Corrosion Resistant Alloy Material Tubulars
(Master thesis, 2022)Precise casing wear estimation is important to ensure appropriate well integrity and safer production of hydrocarbons. The amount of casing wear depends not only on operational parameters but also on the casing material. ... -
Experimental study into the overtopping and breaching of rockfill dams with erosion protection
(Master thesis, 2022)Embankment dams are mainly made of erodible and pervious materials and are at risk from overtopping and piping, the erosion process that initiates may ultimately lead to the dam breaching. Estimating the flood and mapping ... -
Experimental study of a Francis turbine under variable-speed and discharge conditions
(Journal article; Peer reviewed, 2018)This work investigates the unsteady pressure fluctuations in a hydraulic turbine that are observed during steep ramping. Although hydraulic turbines are expected to operate seamlessly during steep ramping, the resulting ... -
Experimental Study of a Low-Specific Speed Francis Model Runner during Resonance
(Journal article; Peer reviewed, 2018)An analysis of the pressure in a runner channel of a low-specific speed Francis model runner during resonance is presented, which includes experiments and the development of a pressure model to estimate both the convective ...