Blar i USN Open Archive på tidsskrift "Energies"
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A Bayesian Model to Forecast the Time Series Kinetic Energy Data for a Power System
(Journal article; Peer reviewed, 2021)With the massive penetration of electronic power converter (EPC)-based technologies, numerous issues are being noticed in the modern power system that may directly affect system dynamics and operational security. The ... -
Cost and Emissions Reduction in CO2 Capture Plant Dependent on Heat Exchanger Type and Different Process Configurations: Optimum Temperature Approach Analysis
(Peer reviewed; Journal article, 2022)The performance of a plate heat exchanger (PHE), in comparison with the conventional shell and tube types, through a trade-off analysis of energy cost and capital cost resulting from different temperature approaches in the ... -
Effect of Mechanical Ventilation on Accidental Hydrogen Releases—Large-Scale Experiments
(Peer reviewed; Journal article, 2021)This paper presents a series of experiments on the effectiveness of existing mechanical ventilation systems during accidental hydrogen releases in confined spaces, such as underground garages. The purpose was to find the ... -
Frequency stability issues and research opportunities in converter dominated power system
(Journal article; Peer reviewed, 2021)Stable power supply has become a crucial thing in the current era of technology and automation. Although the power system has multiple stability issues and causes, frequency fluctuation plays a vital role in normal operation, ... -
Granular sludge bed processes in anaerobic digestion of particle-rich substrates
(Peer reviewed; Journal article, 2019)Granular sludge bed (GSB) anaerobic digestion (AD) is a well-established method for efficient wastewater treatment, limited, however, by the wastewater particle content. This review is carried out to investigate how and ... -
Image Processing and Measurement of the Bubble Properties in a Bubbling Fluidized Bed Reactor
(Journal article; Peer reviewed, 2022)The efficiency of a fluidized bed reactor depends on the bed fluid dynamic behavior, which is significantly influenced by the bubble properties. This work investigates the bubble properties of a bubbling fluidized bed ... -
Mechanistic Model of an Air Cushion Surge Tank for Hydro Power Plants
(Peer reviewed; Journal article, 2022)Due to the increasing use of renewable energy sources, and to counter the effects of fossil fuels, renewable dispatchable hydro power can be used for balancing load and generation from intermittent sources (solar and wind). ... -
OpenHPL for Modelling the Trollheim Hydropower Plant
(Peer reviewed; Journal article, 2019)An increase of tightly integrated, renewable energy sources with highly varying production leads to a greater need for flexible hydropower plants to “balance” the intermittent production from these sources. From a systems ... -
Optimal Frequency Support of Variable-Speed Hydropower Plants at Telemark and Vestfold, Norway: Future Scenarios of Nordic Power System
(Peer reviewed; Journal article, 2020)The integration of renewable resources is quickly growing in the Nordic power system (NPS), and it has led to increasing challenges for the operation and control of the NPS. Nordic countries require that the first-generation ... -
Optimal under-frequency load shedding setting at Altai-Uliastai regional power system, Mongolia
(Peer reviewed; Journal article, 2020)The Altai-Uliastai regional power system (AURPS) is a regional power system radially interconnected to the power system of Mongolia. The 110 kV interconnection is exceptionally long and susceptible to frequent trips because ... -
Parametric sensitivity analysis of rotor angle stability indicators
(Journal article; Peer reviewed, 2021)With the increasing penetration rate of Power Electronic Converter (PEC) based technologies, the electrical power systems are facing the problem of transient stability since the PEC based technologies do not contribute to ... -
Pedagogical Perspectives of Interdisciplinary Teaching and Research: An Energy System Modelling Outlook in Relation to Energy Informatics
(Peer reviewed; Journal article, 2023)The purpose of this paper is to present and discuss pedagogical frameworks and approaches to developing, delivering, and evaluating a new interdisciplinary course within the domain of energy informatics at both Master’s ... -
Process Integration of Green Hydrogen: Decarbonization of Chemical Industries
(Peer reviewed; Journal article, 2020)Integrated water electrolysis is a core principle of new process configurations for decarbonized heavy industries. Water electrolysis generates H2 and O2 and involves an exchange of thermal energy. In this manuscript, we ... -
A review on techno-economic assessment of solar water heating systems in the middle east
(Peer reviewed; Journal article, 2021)Currently, the economy of Middle Eastern countries relies heavily on fossil fuel sources. The direct and indirect adverse consequences of fossil fuel utilization for power generation enforce the region’s countries to raise ... -
Techno-Economic Assessment of Different Heat Exchangers for CO2 Capture
(Peer reviewed; Journal article, 2020)We examined the cost implications of selecting six different types of heat exchangers as the lean/rich heat exchanger in an amine-based CO2 capture process. The difference in total capital cost between different capture ... -
Using MPC to Balance Intermittent Wind and Solar Power with Hydro Power in Microgrids
(Peer reviewed; Journal article, 2021)In a microgrid connected with both intermittent and dispatchable sources, intermittency caused by sources such as solar and wind power plants can be balanced by dispatching hydro power into the grid. Both intermittent ...