Blar i NTNU Open på tittel
Viser treff 32440-32459 av 100660
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Experimental analysis of Venturi-tube behavior in wet gas conditions
(Master thesis, 2019)Subsea våtgasskompressorer har vært i drift i omtrent 5 år og har bidratt til å økt utvinningsgraden med ca. 10 %. For videreutvikling og drift av subsea våtgass kompresjon, kreves det detaljert kunnskap hvordan endringer ... -
Experimental analysis on the influence of operating profiles on high temperature polymer electrolyte membrane fuel cells
(Journal article; Peer reviewed, 2021) -
Experimental analysis on the risk of vortex ventilation and the free surface ventilation of marine propellers
(Journal article; Peer reviewed, 2017)The paper presents a discussion of the ventilation inception and air drawing prediction of ships propellers, aiming to predict under what conditions ventilation will happen, and the actual physical mechanism of the ... -
Experimental and Analytical Analysis of a Virtualized Network Function
(Master thesis, 2019)number of hardware appliances. Furthermore, deploying a new Network Function(NF) often requires installing yet another variety of proprietary hardware. This iscompounded by the increasing costs of energy and capital ... -
Experimental and analytical investigation on the coupled elastoplastic damage model of coal-rock
(Peer reviewed; Journal article, 2020)In this paper, a novel coupled elastoplastic damage model for coal-rock is proposed to predict the deformation and potential disaster in coal mining. The conditions of small deformation and thermodynamic potential are ... -
Experimental and CFD Analysis of Sloshing in Water, Liquid Hydrogen and Liquified Natural Gas Tanks
(Master thesis, 2021)Slappfenomenet vann i rektangulært, og vann, flytende hydrogen (LH2), og flytende naturgass (LNG) i sylindriske tanker undersøkes og sammenlignes i denne oppgaven. Slappfenomenet i de delvis fylte tankene har utfordringer ... -
Experimental and computational analysis of a R744 flashing ejector
(Journal article; Peer reviewed, 2019)In this paper we present a set of experimental data acquired on a CO2 flashing ejector designed for expansion loss recovery applications. Experimental results are compared with CFD simulations obtained using a Homogeneous ... -
Experimental and computational studies of water drops falling through model oil with surfactant and subjected to an electric field
(Chapter, 2014)The behaviour of a single sub-millimetre-size water drop falling through a viscous oil while subjected to an electric field is of fundamental importance to industrial applications such as crude oil electrocoalescers. ... -
Experimental and finite element analysis of fatigue strength for 300 mm2 copper power conductor
(Journal article; Peer reviewed, 2014)The fatigue strength of a 300 mm2 stranded copper conductor was investigated experimentally and by finite element (FE) analysis. An analytical model was also developed and validated. Wires taken from the outer layer of the ... -
Experimental and Finite Element Studies of Cold Pressure Welding of Commercial Purity Aluminium by Divergent Extrusion
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:253, Doctoral thesis, 2009)This doctoral thesis is concerned with experimental and finite element studies of cold pressure welding of commercial purity aluminium by divergent extrusion. The thesis is divided into five parts. Part I gives a general ... -
Experimental and informational modeling study of sustainable self-compacting geopolymer concrete
(Peer reviewed; Journal article, 2021)Self-compacting concrete (SCC) became a strong candidate for various construction applications owing to its excellent workability, low labor demand, and enhanced finish-ability, and because it provides a solution to the ... -
Experimental and kinetic studies on NO emission during pulverized coal preheating-combustion process with high preheating temperature
(Peer reviewed; Journal article, 2021)In this study, two connected drop tube furnaces (DTFs) were used to clarify the NO emission characteristics during the high-temperature preheating-combustion process. The most important factors, including preheating ... -
Experimental and Micro-CT study on the Oil Distribution in laboratory grown Sea Ice
(Journal article; Peer reviewed, 2017)Increasing activities in Arctic waters bare a risk of oil spills under ice-covered conditions and afford sound understanding of the interplay between sea ice and oil. Towards better knowledge, this study focuses on X-ray- ... -
Experimental and Modeling Studies of Fermentative Butanol Production from Lignocellulosic Sugars
(Doctoral theses at NTNU;2019:378, Doctoral thesis, 2019)The primary focus of the work performed and summarized in this thesis was to understand and improve anaerobic fermentation of lignocellulosic sugars for butanol production by Clostridia. Experimental studies form the basis ... -
Experimental and modeling study of subsea releases of oil and gas. - Oil behavior and effects in a cold or Arctic marine environment as a function of release conditions, oil chemistry and dispersant injection.
(Master thesis, 2015)Abstract With oil exploration going into deeper waters and more extreme environments, more detailed knowledge is needed about the fate of oil in case of a release. This thesis focuses on initial droplet formation, secondary ... -
Experimental and modeling study of the droplet dynamics related to liquid-liquid separators
(Master thesis, 2013)Separators are an integral part of oil and gas processing equipment. A high enough level of separation is needed both due to the sales specifications of the finished products, but also due to the effect poor separation may ... -
Experimental and modelling study of subsea oil releases: focusing on small leaks from an aging oilfield off the Norwegian Continental Shelf
(Master thesis, 2019)With advances in exploration and extraction technology, oilfields that would otherwise have been ready for decommission are expected to produce oil for many more years. While beneficial to extract as much resource as ... -
Experimental and Numerical Analysis of Combined In-line and Cross-flow Vortex Induced Vibration
(Doctoral Theses at NTNU, 1503-8181; 2013:23, Doctoral thesis, 2013)This thesis presents results from experimental and numerical investigations of the hydrodynamic forces on a rigid cylinder moving with prescribed orbits in uniform flow. The hydrodynamic forces are measured in both in-line ... -
Experimental and numerical analysis of TIG-dressing applied to a steel weldment
(Journal article; Peer reviewed, 2018)Fatigue strength of welded joints is controlled above all by notch defects such as weld toe and weld root that act as stress concentrators. This is the reason why over the last years different post-weld fatigue improvement ...