Process, Energy and Automation Engineering: Nye registreringer
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Modeling, Estimation, and Control of a Microcogeneration system
(Doctoral dissertations at the University of South-Eastern Norway;214, Doctoral thesis, 2024-11-26)Cogeneration is a technology that allows for the production of both electricity and useful thermal energy from a single energy source. This technology has been used in large-scale industrial applications for many years, ... -
Organic Waste Pyrolysis and Its Integration with Anaerobic Digestion: Emissions, Pollutants, and Methane Production
(Doctoral dissertations at the University of South-Eastern Norway;208, Doctoral thesis, 2024-10-30)With population growth, urbanization and economic development comes an increasing amount of organic waste globally. Common waste disposal methods such as incineration and landfilling causes greenhouse gas emissions and can ... -
Waste as feed to a biomass gasification reactor
(Doctoral dissertations at the University of South-Eastern Norway;202, Doctoral thesis, 2024-06-20)Solid waste management has been a global challenge. With the growing population, an increase in solid waste from households, agriculture, and industries is inevitable. At the same time, rapid industrialization and technological ... -
Model Predictive Control for Energy Systems under Uncertainty
(Doctoral dissertations at the University of South-Eastern Norway;201, Doctoral thesis, 2024-06-12) -
Improved Multiphase Flow Performance Using AICV and its Potential Impact on Reservoir Recovery
(Doctoral dissertations at the University of South-Eastern Norway;198, Doctoral thesis, 2024-06-14)The global energy demand is growing, and oil and gas supply and consumption will evolve in the coming years. It is important to maintain the current oil production to meet the global energy demand. A major challenge in oil ... -
Pushing Technology Boundaries: Monitoring and Optimization of Carbon Capture Solvents
(Doctoral dissertations at the University of South-Eastern Norway;196, Doctoral thesis, 2024-05-29)The central idea of the dissertation is to provide insight into options to reducing the cost of amine-based PCC technology. Solvent management and high energy demand are two of the challenges that have increased the ... -
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 ... -
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 ... -
Accidental release of liquid CO₂ from transport and storage
(Doctoral dissertations at the University of South-Eastern Norway;174, Doctoral thesis, 2023-11-09)An unintended release of liquid CO2 during transport by tanks or pipelines could result in instantaneous depressurization and rapid phase transition with explosive evaporation. Under certain conditions, it could lead to 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 ... -
CO2 capture through electrified calcination in cement clinker production
(Doctoral dissertations at the University of South-Eastern Norway;170, Doctoral thesis, 2023-08-31)The cement industry has the second highest share of industrial CO2 emissions, and two-thirds of these emissions come from decomposing its key ingredient by the calcination reaction (CaCO3 → CaO + CO2). This thesis studied ... -
Characterization of the Spray for Twin-Fluid Atomizer for Inert Gas Generator
(Doctoral dissertations at the University of South-Eastern Norway;145, Doctoral thesis, 2022-12-12)In this era, the world is still hinged upon fossil fuels for energy production & power generation. However, stringent regulations are imposed upon industries by regulatory bodies. The highly efficient combustor systems are ... -
Cost estimation methods for CO2 capture processes
(Doctoral dissertations at the University of South-Eastern Norway;140, Doctoral thesis, 2022-10-12)Cost engineering and economic assessment play a crucial role in evaluation of CO2 capture technologies and energy systems. Cost is one of the key decisive factors when considering industrial deployment of a technology. ... -
Syngas Fermentation and Microbial Electrosynthesis Process Integration to Advance Biogas Production
(Doctoral dissertations at the University of South-Eastern Norway;131, Doctoral thesis, 2022-09-09)Norway is implementing several CO2 emissions control measures to become a low-emission society by 2050. As a part of this great vision, it strives to be the first nation to end the sales of fossil-fuelled vehicles by 2025. ... -
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 ... -
Capabilities of anaerobic granular sludge bed process for the treatment of particle-rich substrates
(Doctoral dissertations at the University of South-Eastern Norway;56, Doctoral thesis, 2020-01-17)High-rate anaerobic reactors have qualities that make them more attractive for anaerobic digestion of organic substrates compared to traditional reactors such as Continuous Stirred Tank Reactor (CSTR). These qualities ... -
State Estimation and Optimal Control of an Industrial Copper Electrowinning
(Doctoral dissertations at the University College of Southeast Norway;6, Doctoral thesis, 2016)This dissertation contains a solution for an industrial large-scale complex control problem. There are several challenges to be faced when handling control problems. One such challenge is to be able to handle the system’s ... -
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 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 ... -
A study of premixed combustion of gas vented from failed Li-ion batteries
(Doctoral dissertations at the University of South-Eastern Norway;109, Doctoral thesis, 2021-11-25)As the world moves towards more clean and suitable energy sources such as wind and solar, there is an increasing demand for energy storage systems. Lithium-ion batteries (LIBs) are today the leading electrical energy storage ...