Blar i Institutt for energi og prosessteknikk på tittel
Viser treff 1899-1918 av 4164
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Holographic cosmology with two coupled fluids in the presence of viscosity
(Peer reviewed; Journal article, 2021)We explore the cosmological models of the late-time universe based on the holographic principle, taking into account the properties of the viscosity of the dark fluid. We use the mathematical formalism of generalized ... -
How Canada can supply Europe with critical energy by creating a Trans-Atlantic energy bridge
(Peer reviewed; Journal article, 2022)Public policy decisions made over the past 10–15 years have significantly impacted the resiliency of Canadian and European energy systems. Rightly or wrongly, these decisions have included shifts away from coal and nuclear ... -
How do different nitrogen application levels and irrigation practices impact biological nitrogen fixation and its distribution in paddy system?
(Peer reviewed; Journal article, 2021)Background and aims Biological nitrogen fixation (BNF) in paddy systems is impacted by nitrogen application levels and irrigation strategies, but the extent to which these factors influence BNF and its distribution in ... -
How do dissolved gases affect the sonochemical process of hydrogen production? An overview of thermodynamic and mechanistic effects – On the “hot spot theory”
(Peer reviewed; Journal article, 2020)Although most of researchers agree on the elementary reactions behind the sonolytic formation of molecular hydrogen (H2) from water, namely the radical attack of H2O and H2O2 and the free radicals recombination, several ... -
How does the ELV recycling and recovery target translate into practice? - The case of the system for treatment of Norwegian ELVs
(Master thesis, 2017)The growth of vehicles as a means of transportation, as well as the increasing computerization of vehicles, makes end-of-life vehicles (ELVs) an important waste flow to recycle. In Norway, the ELV treatment system has ... -
How particle size affects the melting of snow
(Master thesis, 2021)Noreg har lange tradisjonar for skigåing, og når vintrane blir varmare aukar behovet for ei påliteleg kjelde for snø. Byar nært kysten er spesielt utsett når det er små forandringar som skal til før temperaturen går frå ... -
How severe space weather can disrupt global supply chains
(Journal article; Peer reviewed, 2014)Coronal mass ejections (CMEs) strong enough to create electromagnetic effects at latitudes below the auroral oval are frequent events that could soon have substantial impacts on electrical grids. Modern society’s heavy ... -
How to avoid gas supersaturation in the river downstream a hydro power plant
(Master thesis, 2021)Abstract will be available on 2022-10-01 -
How to avoid gas supersaturation in the river downstream a hydropower plant
(Master thesis, 2020)Gassovermetning i vannkraftverk er en lite kjent, men veldig alvorlig tilstand som har påvirket biologisk mangfold negativt i flere vassdrag i Norge. Det er kjent at 10 kraftverk har hatt redusert biologisk mangfold på ... -
How to Avoid Total Dissolved Gas Supersaturation in Water from Hydropower Plants by Employing Ultrasound
(Peer reviewed; Journal article, 2020)In Norway, more than 10 hydropower plants are known to have caused biologically relevant levels of total dissolved gas supersaturation in the rivers downstream power plants. This phenomenon is causing fish kills due to gas ... -
How to quantify biodiversity footprints of consumption? A review of multi-regional input–output analysis and life cycle assessment
(Journal article; Peer reviewed, 2018)Reducing direct pressures on biodiversity will only be possible once the consumption drivers behind them are identified. Target 4 of the Convention on Biological Diversity highlights the importance of moving towards ... -
Höchtemperatur-Wärmepumpen mit natürlichen Kältemitteln : Fallstudien zur HTWP-Integration für industrielle Kälte- und Prozessheisswasserherstellung
(Chapter, 2021)Thermische Prozesse in der Nahrungsmittelindustrie, wie z. B. Molkereien sind oftmals eine Kombination aus Erwärmung und Abkühlung eines Produktes. Prozesskühlung wird dabei meistens mittels einer Wärmepumpe erzielt, wobei ... -
Human dimensions of natural resource management for the Vosso wild salmon population: A systems thinking approach
(Master thesis, 2011)Vosso, the second-largest watershed in Norway, was considered special as it produced some of the biggest salmon in the country. This salmon had economic, cultural as well as ecological importance. Due to its diversity, it ... -
Hybrid artificial intelligence model for prediction of heating energy use
(Peer reviewed; Journal article, 2021)Currently, in the building sector there is an increase in energy use due to the increased demand for indoor thermal comfort. Proper energy planning based on a real measurement data is a necessity. In this study, we developed ... -
A Hybrid Data-Driven Metaheuristic Framework to Optimize Strain of Lattice Structures Proceeded by Additive Manufacturing
(Peer reviewed; Journal article, 2023)This research is centered on optimizing the mechanical properties of additively manufactured (AM) lattice structures via strain optimization by controlling different design and process parameters such as stress, unit cell ... -
Hybrid Flux Splitting Schemes for Numerical Resolution of Two-Phase Flows
(Doctoral thesis, 2003)This thesis deals with the construction of numerical schemes for approximating solutions to a hyperbolix two-phase flow model. Numerical schemes for hyperbolic models are commonly divided in two main classes: Flux Vector ... -
Hybrid life cycle assessment at the neighbourhood scale: The case of Ydalir, Norway
(Peer reviewed; Journal article, 2022)The focus of this study is Ydalir, a neighbourhood in Norway currently in the early planning stages. Ydalir aims to produce its energy locally based on renewable sources, has passive house standards or higher for all its ... -
Hybrid life cycle assessment of steel production with carbon capture and storage
(Master thesis, 2013)Among several Green house gases, CO2 is a main contributor and accounts for about 60% of the greenhouse effect because of its huge emission amount. The iron and steel sector has showed one of the largest energy intensity ... -
Hybrid Life Cycle Assessment of Wood-based Biofuel Production and Consumption Scenarios in Norway
(Master thesis, 2008)An increasingly urgent need to develop alternatives to fossil fuels in road trans- portation stems from both the need to combat climate change and the need to prepare for a transition beyond peak oil. Biofuels can be part ... -
A hybrid machine learning approach for the load prediction in the sustainable transition of district heating networks
(Peer reviewed; Journal article, 2023)Current district heating networks are undergoing a sustainable transition towards the 4th and 5th generation of district heating networks, characterized by the integration of different types of renewable energy sources ...