Blar i Process, Energy and Automation Engineering på tittel
Viser treff 19-38 av 70
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Electrochemical Unit Integration with Biogas Production Processes
(Doctoral dissertations at the University of South-Eastern Norway;62, Doctoral thesis, 2020-03-27)Power to Gas (PtG) is being viewed as systemic innovation in terms of integrating renewable electricity systems and wastewater treatment systems to provide renewable transport fuel. The highly varied nature of the sun and ... -
Empirical modeling, state estimation, and process control with real-life applications to the Czochralski crystallization process
((Doctoral dissertations at TUC;2012:1, Doctoral thesis; Peer reviewed, 2012-05-24)This PhD thesis presents research work within the field of systems and control engineering, with emphasis on applications to real-life processes, the Czochralski (CZ) crystallization process in particular. During the PhD ... -
Estimation of the energy-mix proportion for the secure operation of converter dominated power system
(Doctoral dissertations at the University of South-Eastern Norway;186, Doctoral thesis, 2024-04-18)The modern power system has undergone significant transformations driven by the necessary for environmental sustainability, technological progress, and evolving energy demands. A notable distinction between the modern power ... -
Experimental and theoretical studies of rapid phase transitions in CO2
(Doctoral dissertations at the University of South-Eastern Norway;13, Doctoral thesis, 2018-10-19)Rapid depressurization and evaporation of a pressurized liquefied gas are phenomena of relevance to hazard identification and risk analysis in the process industry. Tank explosions and pipeline ruptures are accident scenarios ... -
Experimental Study of Deflagration to Detonation Transition in Hydrogen-Air Mixtures
(Doctoral dissertations at TUC;2015:1, Doctoral thesis; Peer reviewed, 2015-04-29)Gas explosions in a square channel have been investigated with a main focus on the deflagration to detonation transition (DDT). The gas mixtures were hydrogen and air at different concentrations. This work have been motivated ... -
Gas explosions in process pipes
(Doctoral theses at NTNU;2004:79, Doctoral thesis; Peer reviewed, 2004)In this thesis, gas explosions inside pipes are considered. Laboratory experiments and numerical simulations are the basis of the thesis. The target of the work was to study gas explosions in pipes and to develop numer- ... -
Human Behaviour Modelling for Welfare Technology
(Doctoral dissertations at the University of South-Eastern Norway;63, Doctoral thesis, 2020-03-31)Elderly populations are increasing in Norway, Scandinavia and other developed countries, in part because people are living longer due to medical advances. This is associated with several societal challenges, including an ... -
Hydrogen leaks in partially confined spaces - dispersion and explosions
(Doctoral dissertations at the University of South-Eastern Norway;31, Doctoral thesis, 2017-12-12)In Porsgrunn, Norway, there was an explosion in an ammonia plant in July 1985. The accident was caused by a hydrogen leak inside a factory building, called N1. The result was a severe hydrogen-air explosion and jet fire, ... -
Hydrogen safety in confined spaces
(Doctoral dissertations at the University of South-Eastern Norway;130, Doctoral thesis, 2022-09-02)Unwanted hydrogen releases in confined spaces can be significantly more dangerous compared to open-air scenarios. The transmission towards a zero-emission system results in a growth of hydrogen-driven vehicles which increases ... -
Identification of signals describing pairwise interaction in plankton, bacteria and bacteriophage : a study of model, microcosm and lake
(Doctoral theses at NTNU;2003:54, Doctoral thesis; Peer reviewed, 2003)This study concerns interaction between organisms. Such interactions are often studied through organism abundances over periods of time (time-series). Time-series reflect both internal (biological) and external (environmental) ... -
An Image Processing Framework for High Speed Videos from Combustion and Gas Explosion Experiments
(Doctoral dissertations at the University of South-Eastern Norway;83, Doctoral thesis, 2020-12-18)The method of high speed photography is used to visualize those phenomena which occur so fast that it is impossible to visualize by the normal human eyes. One of those phenomena is a shock wave propagation during gas ... -
Image-based sizing techniques for fire water droplets
(Doctoral dissertations at TUC;2015:5, Doctoral thesis; Peer reviewed, 2015-11-12)The Norwegian petroleum industry has developed a standard for the technical safety of offshore installations (NORSOK S-001, 2008). When dimensioning accidental load with this standard, the deluge or fire water spray may ... -
Impact erosion by solid particles in gas-particle flows
(Doctoral thesis, 2021-06-18)Mass loss of inner wall surface due to particle impact, also referred as erosive wear, is a common challenge encountered in industrial pneumatic conveying systems. Previous studies have shown that erosion is a process ... -
Intelligent frequency control for the secure operation of modern power system
(Doctoral dissertations at the University of South-Eastern Norway;103, Doctoral thesis, 2021-09-23)The modern power system is experiencing several changes to meet the objective to become in a zero CO2 emissions industry. The principal changes are the high penetration of renewable energy sources (RESs) into the power ... -
Low temperature methanol synthesis catalysed by a copper nanoparticle-alkoxide system
(Doctoral dissertations at the University of South-Eastern Norway;6, Doctoral thesis, 2018-06-28)Methanol (MeOH) synthesis at low temperature in a liquid medium presents the possibility of achieving full syngas conversion per pass. The Low temperature MeOH synthesis (LTMS) process is advantageous over the current ... -
Mass transfer characteristics of CO2 absorption into liquid droplets
(Doctoral dissertations at TUC;2014:1, Doctoral thesis; Peer reviewed, 2014-01-21)CO2 capture from exhaust gases has been paid more and more attention in order to avoid global warming. One of the methods for removing CO2 from the flue gas streams is the use of absorption and aqueous alkanolamine solutions ... -
Mass Transfer Kinetics of Carbon Dioxide into Concentrated Aqueous Solutions of Monoethanolamine
(Doctoral dissertations at TUC;2013:2, Doctoral thesis; Peer reviewed, 2013-02-15)Global warming arguments have gained more and more attention due to the new regulations of carbon dioxide (CO2) emission in the world. Monoethanolamine (MEA) has been employed as an important industrial absorbent for CO2 ... -
Methane production from lignocellulosic residues
(Doctoral dissertations at the University of South-Eastern Norway;93, Doctoral thesis, 2021-05-25)Aims: Biochar production by intermediate pyrolysis of renewable lignocellulosic biomass to replace traditional carbon material as a reducing agent and energy source in the metallurgical industries produces carbon rich waste ... -
Modeling for Automatic Control and Estimation of Influx and Loss During Drilling Operations
(Doctoral dissertations at the University of South-Eastern Norway;61, Doctoral thesis, 2020-03-20)In the modern energy driven world, oil and gas will be important resources, at least in the foreseeable future. Wells with challenging pressure windows are more com-monly drilled, and in recent years the drop in oil prices ... -
Modeling, Control and Optimization of a Hydropower Plant
(Doctoral dissertations at the University College of Southeast Norway;33, Doctoral thesis, 2017-12-19)Hydropower is a crucial power resource for everyday life in Norway, and a traditional industry that could be improved along with new updated technologies. The PhD work focuses on exploring new solutions, in aspect of ...