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Machine Learning and First Principles Modeling Applied to Multiphase Flow Estimation
(Doctoral theses at NTNU;2020:407, Doctoral thesis, 2020)Accurate knowledge of multiphase flowrates produced by each well in an oil and gas production system is important for performing production optimization, flow assurance and reservoir management. Among the alternatives, ... -
Machine Learning and Image Processing for the Study of Fluid Particle Breakage in Turbulent Flow
(Master thesis, 2020)Hovedformålet med denne oppgaven er å lage maskinlæringsmodeller for bruk i en allerede eksisterende bildeanalysekode for å kunne spore oljedråper i en turbulent strøm av vann. I tillegg, har prosjektet som mål å beskrive ... -
Machine Learning Modelling of the Oxidative and Thermal Degradation of Monoethanolamine (MEA)
(Master thesis, 2021)Folketallet i verden vokser, noe som fører til en økning i forbruket av ressurser og utslipp av klimagasser. Som et resultat av dette øker konsentrasjonene av klimagasser i atmosfæren til farlige nivåer, og behovet for ... -
Macro- and micro scale phenomena in gas flotation for produced water treatment- the effect of fluid composition, temperature and pressure
(Doctoral theses at NTNU;2023:369, Doctoral thesis, 2023)Produced water, the primary waste product of the petroleum industry, contains harmful components that must be treated before discharge to the sea or reinjection. The focus of treatment has traditionally been on dispersed ... -
Magnetic Nanoparticles for Extraction of Naphthenic Acids from Model Oil
(Master thesis, 2015)The Master s thesis aims for synthesis of magnetic nanoparticles (MNP), silica-coated magnetic nanoparticles, and their application for extraction of naphthenic acids (NA) from model oil. The present work is a part of a ... -
Magnetic Polymeric Nanoparticles for Biomedical Applications
(Master thesis, 2021)Iron Oxide Nanoparticles (IONPs) have been extensively used in different applications including biomedicine, hydrology, and catalysis. This is because IONPs have excellent physico-chemical properties like superparamagnetism. ... -
Manipulating Gold Spatial Location on Titanium Silicalite-1 To Enhance the Catalytic Performance for Direct Propene Epoxidation with H2 and O2
(Journal article; Peer reviewed, 2018)Engineering Au spatial locations on support harbors tremendous potential to boost catalytic performance but still remains a scientific and technological challenge. Herein, we devise a strategy to manipulate Au spatial ... -
Manipulation of Fibril Surfaces in Nanocellulose-Based Facilitated Transport Membranes for Enhanced CO2 Capture
(Peer reviewed; Journal article, 2019)The transition toward sustainable processing entails the use of biobased alternatives as functional materials to reduce the overall carbon footprint. Nanocellulose, due to its natural availability, biodegradability, excellent ... -
Mapping Diluents for Water-Lean Solvents: A Parametric Study
(Peer reviewed; Journal article, 2020)Water-lean solvents are typically defined as mixtures between an organic diluent and an amine. These solvents are thought to deliver potential benefits in CO2 capture systems, such as enhanced mass transfer properties, ... -
Mapping of Vapor-Liquid Equilbrium Data for: 1,3-diaminopropane (1,3-DAP) - Experiments and modeling
(Master thesis, 2014)Et nytt sett av datapunkter for et tærnert damp-væske likevektssystem av H2O, CO2 and 1,3-diaminopropan (1,3-DAP) er kartlagt i dette arbeidet. Dataene ble funnet ved bruk av to type apparaturer, der faselikevekt og kjemisk ... -
Mass transfer study for carbon dioxide capture in a gas-liquid membrane contactor
(Master thesis, 2011)Emission of green house gases especially CO2 has become a major environmental issue. In order to control and reduce the CO2 emissions, carbon capture and storage (CCS) is an important tool. Removal of acidic gases by ... -
Materialstrømanalyse for aluminium i Norge
(Master thesis, 1998)Oppgavens hovedformål har vært å kartlegge materialflyten av aluminium i Norge. Hensikten med en slik kartlegging var å drøfte dagens og fremtidens resirkuleringsgrad i relasjon til teknologisk løsning og økologisk ... -
Mathematical Modeling and Process Parametric Study of CO2 Removal from Natural Gas by Hollow Fiber Membranes
(Journal article; Peer reviewed, 2019)Hollow fiber membranes show a great potential in natural gas sweetening by removing CO2 to meet gas grid specifications. A membrane model with high prediction accuracy is developed to model multicomponent gas transport ... -
Mathematical modeling and simulation of hydrogen-fueled solid oxide fuel cell system for micro-grid applications - Effect of failure and degradation on transient performance
(Peer reviewed; Journal article, 2020)We use a detailed solid oxide fuel cell (SOFC) model for micro-grid applications to analyze the effect of failure and degradation on system performance. Design and operational constraints on a componentand system level are ... -
Mathematical modeling and validation of CO2 mass transfer in a membrane contactor using ionic liquids for pre-combustion CO2 capture
(Journal article; Peer reviewed, 2017)Mass transfer and mathematical modelling of CO2 absorption in a tubular membrane contactor using 1-Butyl-3-methylimidazolium Tricyanomethanide ([Bmim][TCM]) for pre-combustion CO2 capture has been studied in this work. A ... -
Mathematical Modelling and Process Simulation of a Membrane Absorption Process for Pre-combustion CO2 Capture
(Doctoral theses at NTNU;2017:216, Doctoral thesis, 2017)The greenhouse gas emissions, particularly CO2, are significantly impacting the global climate change. There are strong desires to find energy efficient and economical solutions for CO2 capture from energy production, ... -
Mathematical Multi-physics Modeling and Simulation of a Solid Oxide Fuel Cell Unit for Thermo-Mechanical Stress Analyses
(Peer reviewed; Journal article, 2020)We use a mathematical model of a solid oxide fuel cell (SOFC) unit for stress analyses. The model comprises a thermo-electrochemical-chemical performance model that calculates the temperature field in the solid part which ... -
Måling av reaksjonsvarme og gass-/væskelikevekt for CO2 fangst i solventer med to væskefaser
(Master thesis, 2016)Absorpsjon av CO2 ved bruk av aminer er en velutviklet teknologi for CO2-fangst. Likevel er det stort forbedringspotensial ved dagens teknologi, relatert til blant annet høyt energiforbruk, degradering av aminer og ... -
MBCO: The materials-based business case ontology from BPMN-EMMO integration
(Chapter, 2024)Open innovation in materials research involves the collaborative sharing of knowledge, ideas, and resources across organisations. Unfortunately, a lack of mutual understanding between scientific and industrial partners and ... -
Measurement and Modeling of Physical Properties of Amines
(Master thesis, 2013)Calibrate the high pressure viscometer at different temperatures and pressure. Measure the viscosity and density for MDEAsystems and DMMEAsystems, unloaded and loaded with CO2. Modeling of the measured properties.