Institutt for prosess-, energi- og miljøteknologi: Recent submissions
Now showing items 1-20 of 356
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A probabilistic approach for the levelized cost of energy of floating offshore wind farms
(Peer reviewed; Journal article, 2024)This paper aims to analyze the levelized cost of energy (LCOE) of floating offshore wind farms from a probabilistic point of view. Understanding and addressing the uncertainty associated with the main parameters that ... -
Numerical simulation of hydrogen dispersion in an open-ended rectangular channel
(Peer reviewed; Journal article, 2024)In this work, large-eddy simulations of hydrogen dispersion from turbulent subsonic hydrogen-gas emissions in a 5.8 × 0.9 × 0.8 m open-ended channel are described. Such numerical modeling of hydrogen-related processes can ... -
Biofilm application for anaerobic digestion: a systematic review and an industrial scale case
(Peer reviewed; Journal article, 2024)Biofilm is a syntrophic community of microorganisms enveloped by extracellular polymeric substances and displays remarkable adaptability to dynamic environments. Implementing biofilm in anaerobic digestion has been widely ... -
EcoStrategic index: Economic value creation through product portfolio diversity for waste-to-x technologies
(Peer reviewed; Journal article, 2025)Sustainable decision-making for waste-to-X technologies presents a challenge, encompassing numerous alternatives across the entire supply chain, from biomass selection to diverse product portfolios. Each decision affects ... -
Durability and mass loss effect of heat-treated stainless-steel cathode for methane production from organic and inorganic carbon in a bioelectrochemical system
(Peer reviewed; Journal article, 2024)A key factor in biogas production via bioelectrochemical systems (BES) is the stability of electrodes in long-term operation, especially under limited applied energy and varying levels of organic and inorganic carbon content ... -
Eco-friendly bio-composite sheets: a study on the utilization of banana peels, cassava starch, and banana stem fibers
(Peer reviewed; Journal article, 2024)Massively using conventional plastics has led to significant environmental issues, including harm to ecosystems, wildlife, and human health, contributions to greenhouse gas emissions, and resource depletion through their ... -
Optimum Conditions and Maximum Capacity of Amine-Based CO<inf>2</inf> Capture Plant at Technology Centre Mongstad
(Peer reviewed; Journal article, 2024)Using amine-based solutions is a mature method for CO2 capture. This study simulates this process at Technology Centre Mongstad (TCM) using a rate-based model in Aspen Plus. The main purpose is to develop a rigorous model ... -
Life Cycle Assessment of Floating Offshore Wind Farms: The Case of Hywind Tampen in Norway
(Peer reviewed; Journal article, 2024)To address climate change and energy security issues from fossil fuels, wind power is a promising renewable energy source, projected to grow significantly by 2050. Offshore wind energy, especially floating offshore wind ... -
Life cycle management and probabilistic levelized cost of energy analysis of floating offshore wind farms
(Peer reviewed; Journal article, 2025)This chapter aims to address life cycle management and the levelized cost of energy (LCOE) of floating offshore wind farms from a probabilistic point of view. Understanding and addressing the uncertainty associated with ... -
Actinomma sogndalensis n. sp. (Radiolaria, Polycystina) an endemic species to the Sognefjord, western Norway
(Peer reviewed; Journal article, 2024)Studies of polycystine radiolarians (marine planktonic protists) have shown that great faunistic differences occur between the different Norwegian fjord systems. Plankton studies by Swanberg and Bjørklund in the early ... -
Low-Viscosity Nonaqueous Sulfolane-Amine-Methanol Solvent Blend for Reversible CO2 Capture: Part II. Blend Optimization, Water Effect, and Speciation
(Peer reviewed; Journal article, 2024)This work is part II of the investigation of a low viscosity, low regeneration energy nonaqueous CO2 capture solvent blend consisting of readily available chemicals diisopropylamine (DPA)–methanol–sulfolane and featuring ... -
Modelling and Simulation of CO2 Capture through Aqueous Indirect Mineralization using CaO-containing By-products
(Peer reviewed; Journal article, 2024)The amount of CO2 in the atmosphere is continuously increasing, resulting in climate change and global warming. Industrial processes contribute a substantial share in the amount of CO2 released to the atmosphere. On the ... -
Design of electrified fluidized bed calciner for direct capture of CO2 from cement raw meal
(Peer reviewed; Journal article, 2024)In this study, a fluidized bed electrified calciner was designed, and various operating conditions were investigated by CPFD simulations. It was found that maintaining a constant fluidization velocity while increasing the ... -
Electrified externally heated rotary calciner for calcination of cement raw meal
(Peer reviewed; Journal article, 2023)The cement industry can reduce its CO2 emissions by electrifying the calciner. It can avoid emissions from fuel combustion and produce pure CO2 from the calcination reaction (CaCO3 → CaO + CO2) for direct capture. A ... -
Industrially relevant pyrolysis of diverse contaminated organic wastes: Gas compositions and emissions to air
(Peer reviewed; Journal article, 2023)Pyrolysis is a promising waste handling technique compared to incineration, especially due to its potential for greenhouse gas reduction through biochar carbon removal. This study investigated greenhouse gas and air pollutant ... -
Numerical simulation of lignin gasification: The role of gasifying agents in entrained-flow reactors
(Peer reviewed; Journal article, 2024)Biomass gasification using an Entrained-Flow Reactor (EFR) is an effective strategy for sustainable energy production and climate change mitigation. However, optimizing gasification efficiency and syngas quality requires ... -
Comparative structural reliability analysis of monopile-supported offshore wind turbines - considering the effect of flexible foundation and simulation time on long-term extreme response extrapolation
(Conference object, 2023)This paper deals with the development of semi-probabilistic design formats for ultimate strength design of monopile-supported Offshore Wind Turbines. The effect of the flexible foundation and simulation time on long-term ... -
Implied safety level in design codes for monopile offshore wind turbines: parametric study on the effect of partial safety factors
(Chapter, 2023)Offshore wind structures are subjected to complicated loads and load effects, which demand comprehensive numerical modelling representation of the physics. There is interdependence between loads, load-effects, and structural ... -
Opportunities and challenges of using SRF as an alternative fuel in the cement industry
(Journal article, 2023)Over two billion tonnes of municipal solid wastes (MSW) are generated annually from households, industrial facilities, and commercial sites. The non-hazardous fraction of MSW is used to produce solid recovered fuels (SRF), ... -
Novel design of a rotary calciner internally heated with electrical axial heaters: Experiments and modelling
(Peer reviewed; Journal article, 2023)As the share of renewable energy increases, green electricity may help reduce the carbon footprint in the lime industry. Electrifying the calciner can produce relatively pure CO2 from the calcination process (CaCO3 → CaO ...