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Modelling and Fouling Monitoring of Condenser at Snøhvit
(Master thesis, 2011)This report is a result of the work performed during the Master Thesis TKP 4900 at the Department of Chemical Engineering, NTNU in the spring of 2011. The problem assigned was "Modelling and fouling monitoring of a condenser ... -
Modelling and model predictive control of a semi-batch reactor for emulsion polymerisation of PVC
(Master thesis, 2020)Målet med dette prosjektet er å studere implementering av ulineær modellprediktiv regulering (NMPC) for en reaktor for emulsjonpolymerisasjon. En modell utledes ved bruk av fysiske prinsipper, og brukes til å erstatte målte ... -
Modelling and optimization of a Biomass-to-Liquid process using VMGSim
(Master thesis, 2016)A biomass-to-liquid plant consists of pretreatment, gasification , syngas cleaning and conditioning, Fischer-Tropsch (FT) synthesis, and products upgrading. In the FT reactor the syngas is converted to liquid fuels on ... -
Modelling and optimization of a Gas-to-Liquid plant
(Master thesis, 2012)In the last years there have been much research and development regarding gas-to-liquid plants. The fuel demands are growing bigger, and fuels from oil and coal cannot cover the demands in the future. Converting natural ... -
Modelling and optimization of a Gas-to-Liquid plant
(Master thesis, 2013)This thesis investigates the operational performance and optimization of aGas-to-Liquid plant based on autothermal reforming (ATR) and a multitubular fixed bed (MTFB) reactor together with a cobalt catalyst. This isachieved ... -
Modelling and Optimization of a GTL Plant
(Master thesis, 2014)A gas-to-liquid process converts gaseous carbon feedstock into more valuable products. Recent technological improvements have led to an increased interest in this production method. This master s thesis has evaluated three ... -
Modelling and Optimization of a Process from Biomass to Liquid Fuels via Fischer-Tropsch Synthesis
(Master thesis, 2016)The global energy demand is expected to increase by almost 50% by 2040. Simultaneously, fossil energy reserves are threatened to disappear. Thus it is imperative to development renewable technologies such as Biomass-To-Liquid ... -
Modelling and Optimization of Compact Sub-sea Separators - Gas-Liquid separation
(Master thesis, 2015)This Master thesis focuses on Modelling and Optimization of Compact sub-sea separators using a given separation system. The separation system consists of three separation units: a gravity separator, a deliquidizer and a ... -
Modelling and simulation for CO2 capture process optimization by using hybrid technologies in industrial applications
(Master thesis, 2022)Global oppvarming utgjør en akutt fare for verden, og CO2 er en av de mest problematiske klimagassene. Teknikker for fangst, utnyttelse og lagring av karbon (CCUS) er under utvikling, og noen av dem er allerede i bruk, da ... -
Modelling and Simulation of a Two-Stage Refrigeration Cycle
(Master thesis, 2015)A two-stage refrigeration cycle was modelled and optimized in MATLAB. The optimum was found to be very flat, resulting in small losses from disturbances and implementation errors. The two unconstrained degrees of freedom ... -
Modelling and simulation of chemical looping combustion in a double loop circulating fluidized bed reactor system
(Doctoral theses at NTNU;2018:109, Doctoral thesis, 2018)Among the well-known combustion technologies with CO2 capture, Chemical Looping Combustion (CLC) stands out for its potential higher energy efficiency. CLC involves combustion of carbonaceous fuel such as natural gas or ... -
Modelling and simulation of chemical looping combustion process in a double loop circulating fluidized bed reactor
(Journal article, 2017)A reactive CFD model has been developed and implemented numerically in an in-house code for a coupled double loop circulation fluidized bed reactor. In the current work it is utilized for the chemical looping combustion ... -
Modelling and simulation of hydrodynamics in double loop circulating fluidizedbed reactor for chemical looping combustion process
(Journal article, 2017)A multiphase CFD model has been developed and implemented in an in-house code for a coupled double loop circulation fluidized bed (DLCFB) reactor which can be utilized for the chemical looping combustion process. The air ... -
Modelling and simulation of reactive gas-solid flows in circulating fluidized bed reactors
(Doctoral thesis at NTNU;2014:368, Doctoral thesis, 2014)The thesis presents a study on mathematical modelling and numerical simulation of reactive gas-solid flows operating in circulating fluidized bed (CFB) reactors, in particular environmentally-friendly methane reforming ... -
Modelling CO2 - water mixture thermodynamics using various equations of state (EoSs) with emphasis on the potential of the SPUNG EoS
(Journal article; Peer reviewed, 2014)CO2–water is a very important mixture in the Carbon Capture and Storage (CCS) industry. The mixture can have a broad range of concentrations, from water as an impurity in CO2 transport to high water concentrations in ... -
Modelling CO2 and H2S Solubility in Aqueous Solution of MDEA
(Master thesis, 2017)Raw natural gas contains acid gases like CO2 and H2S. These gases are important to remove for different reasons. CO2 leads to reduction in the heating value of a gas, reducing its selling value, and both CO2 and H2S may ... -
Modelling Failure Mechanisms in Subsea Equipment
(Master thesis, 2016)The oil and gas industry is recently facing a challenge to increase the efficiency and reduce the costs. One way to reduce costs is to better optimize the maintenance strategy. By applying failure mechanism models it could ... -
Modelling of a tubular membrane contactor for pre-combustion CO2 capture using ionic liquids: Influence of the membrane configuration, absorbent properties and operation parameters
(Journal article; Peer reviewed, 2016)A membrane contactor using ionic liquids (ILs) as solvent for pre-combustion capture CO2 at elevated temperature (303–393 K) and pressure (20 bar) has been studied using mathematic model in the present work. A comprehensive ... -
Modelling of absorption of CO2 inaqueous solutions of alkanolamines
(Master thesis, 2009)