Blar i Process, Energy and Automation Engineering på tittel
Viser treff 39-58 av 70
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Modelling and simulations of bubbling fluidized bed and entrained flow biomass gasification reactors
(Doctoral dissertations at the University of South-Eastern Norway;118, Doctoral thesis, 2022-02-24)The world needs sustainable energy solutions to replace fossil fuels. Climate change is the defining challenge of our time. New reports from the International Energy Agency (IEA, 2021)1 have developed a roadmap for max ... -
Modelling of ash melts in gasification of biomass
(Doctoral dissertations at the University of South-Eastern Norway;120, Doctoral thesis, 2022-03-04)The need for advanced biofuels produced from sustainable sources is stressed, both on national and international level due to a global agreement to limit the Earth’s global warming. The major goals in the Norwegian agreement ... -
Modelling of gas explosions
(Doctoral theses at NTNU;2010:221, Doctoral thesis; Peer reviewed, 2010-12-03)The content of this thesis is a study of gas explosions in complex geometries and presentation and validation of a method for simulating flame acceleration and deflagration to detonation transition. The thesis includes a ... -
Modelling Tool for Hydropower Systems, with Analysis and Design
(Doctoral dissertations at the University of South-Eastern Norway;173, Doctoral thesis, 2023-10-19)The increased use of renewable energy sources is due to an increasing global energy need, and to counter the effects of fossil fuels on the environment. Common renewable energy sources such as solar energy and wind energy ... -
Models and Estimators for Flow of Topside Drilling Fluid
(Doctoral dissertations at the University of South-Eastern Norway;44, Doctoral thesis, 2019-10-08)The reduction of risk and non-productive time in oil drilling is a key research interest in the oil and gas industry. The early detection of kick and loss is a crucial part in safe well control operations, thus, it plays ... -
Multivariable process control in high temperature and high pressure environment using non-intrusive multi sensor data fusion
(Doctoral theses at NTNU;2006:38, Doctoral thesis; Peer reviewed, 2006)The main objective of this thesis is to use available knowledge about a process and combine this with measurement data from the same process to extract more information about the process. The combination of knowledge and ... -
Multivariate image regression (MIR) for quantitative predictions : prototype software implementation and selected industrial-technological pilot studies
(Doctoral theses at NTNU;2000:99, Doctoral thesis; Peer reviewed, 2000)In large and important sectors of modern production, there is an increased demand for on-line or at-line information. Both consumers and governmental regulations require that producers can document the quality of their ... -
On Process Simulation and Learning Technologies
(Doctoral dissertations at the University of South-Eastern Norway;45, Doctoral thesis, 2019-10-16)This thesis provides additional insights into the field of simulator training. Al-though numerous studies have identified how to improve simulator technologies and team training practices, little analytic attention has ... -
One-step Conversion of Ethylene to Propylene by a NiSO₄-ReO x/γ-A1₂O₃ Catalyst
(Doctoral dissertations at the University College of Southeast Norway;4, Doctoral thesis, 2016-06-22)The demand for propylene has dramatically increased due to the discovery of propylene’s derivatives (e.g. polypropylene). The propylene production from the conventional processes (steam cracking process and a refinery fluid ... -
Optimization of flow behavior in biomass gasification reactor
(Doctoral dissertations at TUC;2015:2, Doctoral thesis, 2015)Dual fluidized bed reactor for steam gasification of biomass is a promising technology and can be used in Combined Heat and Power (CHP) production. The producer gas from the reactor can have a calorific value up to 14 ... -
Parameter estimation and analysis for grey-box models of building thermal behavior
(Doctoral dissertations at the University of South-Eastern Norway;77, Doctoral thesis, 2020-10-12)Reduction of anthropogenic CO2 emissions is one of the most important scientific endeavours of our time. Space heating of buildings is responsible for a considerable portion of the worlds total energy consumption. The ... -
Physicochemical data for amine based CO2 capture process
(Doctoral dissertations at the University of South-Eastern Norway;72, Doctoral thesis, 2020-06-18)Amine based post-combustion carbon capture is a highly discussed CO2 removal method from flue gas. Large-scale CO2 capture facilities with effective solvents are required to make a significant impact on reducing CO2 emissions ... -
Pneumatic conveying and storage of wet particles to illustrate offshore drill cutting handling
(Doctoral dissertations at the University of South-Eastern Norway;7, Doctoral thesis, 2018-06-29)In this thesis, the pneumatic conveying and storage characteristics of particles mixed with a drilling fluid are studied based on the pilot scale experiments. The objective of this research is to investigate the impact of ... -
Post combustion CO2 capture using aqueous amine solvents: Investigations on molecular structure-activity relationships for amine solvents
(Doctoral dissertations at TUC;2015:3, Doctoral thesis; Peer reviewed, 2015-06-25)The study in this dissertation focuses on chemical absorption of CO2 using aqueous amine which is expected to be the technology of choice for early large scale deployment of postcombustion carbon capture (PCC). However ... -
Process analytical technology for real-time quantitative speciation of aqueous phase CO2 capture solvents
(Doctoral dissertations at the University of South-Eastern Norway;31, Doctoral thesis, 2019-04-08)Dependency on fossil fuel energy systems is unavoidable until there is a complete shift to alternative energy systems which have no/less impact for global warming. Rapid deployment of carbon capture and sequestration (CCS) ... -
Production of polysilicon from silane pyrolysis in a fluidized bed
(Doctoral dissertations at TUC;2013:3, Doctoral thesis; Peer reviewed, 2013-06-07)The photovoltaic industry has experienced a tremendous growth over the last years. The backbone of the technology has so far been elemental silicon. Silicon is the second most abundant element on the earth, but in order ... -
The rapid depressurization and evaporation of liquified carbon dioxide
(Doctoral dissertations at the University College of Southeast Norway;20, Doctoral thesis, 2017-06-22) -
Real-time Optimization and Control for Oil Production under Uncertainty
(Doctoral dissertations at the University of South-Eastern Norway;179, Doctoral thesis, 2024-02-02)The practical use of model-based optimization depends significantly on the accuracy of the model in use. This is because the presence of uncertainty can introduce a mismatch between the model and the real plant, which may ... -
Removal of CO2 from exhaust gas
(Doctoral dissertations at TUC;2012:2, Doctoral thesis; Peer reviewed, 2012-05-30)Removal of CO2 from exhaust gas (CO2 capture) has become a very important topic the last years. There is international agreement to limit the emissions of greenhouse gases to reduce the global warming problem, and CO2 is ... -
Roll-out of model based control with application to paper machines
(Doctoral theses at NTNU;2003:31, Doctoral thesis; Peer reviewed, 2003)A mechanistic nonlinear model of the wet end of paper machine 6 (PM6) at Norske Skog Saugbrugs, Norway has been developed, and used in an MPC application. The MPC provides reduced variability in many key variables, and ...