Browsing Institutt for energi og prosessteknikk by Title
Now showing items 4099-4118 of 4147
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Wet gas compressor performance evaluation
(Doctoral theses at NTNU;2022:46, Doctoral thesis, 2022)The demand for oil and gas from the maturing Norwegian continental shelf (NCS) remains high. Even though the concern for climate change is shifting energy production towards renewables, production on the NCS is expected ... -
Wet Gas Compressor Performance: A Numerical Investigation of Thermal-Equilibrium in a Centrifugal Compressor Exposed to Wet Gas
(Master thesis, 2012)Wet gas compression and subsea compression technology has gained increased focus in the recent years. With aging fields on the Norwegian continental shelf and new discoveries in arctic regions, subsea compression could ... -
Wet Gas Compressor Transient Operation
(Master thesis, 2018)Over the past years, the oil and gas industry has directed its attention towards subsea wet gas compression. Previous research has demonstrated that the operation of subsea wet gas compressors represents challenges related ... -
Wet Gas Compressor Transients
(Master thesis, 2014)This master thesis considers three subtasks related to transient operation of wet gas compressors.HYSYS Dynamics is used to establish a dynamic simulation model in the first subtask. The model is designed to predict transient ... -
Wet Gas Compressors - Stability and Range
(Doctoral thesis at NTNU;2016:230, Doctoral thesis, 2016)The oil and gas industry is a large user of turbomachinery. The demand for oil and gas is consistently growing, and changing market conditions require innovative solutions. Operation and optimization of turbomachinery ... -
Wet Torrefaction of Biomass – Production and Conversion of Hydrochar
(Doctoral thesis at NTNU;2015:20, Doctoral thesis, 2015)Biomass is a renewable and carbon neutral energy resource which has a high potential for replacing fossil fuels. However, the use of biomass for energy applications is not straightforward. It is because native solid ... -
Wetting State Transitions over Hierarchical Conical Microstructures
(Journal article; Peer reviewed, 2018)Advancing in a better understanding of the physics of wetting requires to be able to develop surfaces with well‐controlled roughness by controlling the microstructure morphology. In this study, patterned truncated cones ... -
What Is the Impact of Accidentally Transporting Terrestrial Alien Species? A New Life Cycle Impact Assessment Model
(Peer reviewed; Journal article, 2024)Alien species form one of the main threats to global biodiversity. Although Life Cycle Assessment attempts to holistically assess environmental impacts of products and services across value chains, ecological impacts of ... -
When do allocations and constructs respect material, energy, financial, and production balances in LCA and EEIO?
(Journal article; Peer reviewed, 2016)Conservation of mass and energy are essential to physical accounting, just as price and market balances are essential to economic accounting. These principles guide data collection and inventory compilation in industrial ... -
Which practices co-deliver food security, climate change mitigation and adaptation, and combat land degradation and desertification?
(Peer reviewed; Journal article, 2019)There is a clear need for transformative change in the land management and food production sectors to address the global land challenges of climate change mitigation, climate change adaptation, combatting land degradation ... -
Whole building life cycle Assessment(WBLCA) of an adaptive reuse of a heritage building: A case study of an Industrial building
(Master thesis, 2023)Rehabilitering av bygninger og adaptiv gjenbruk er kjent for å ha mindre miljøpåvirkning sammenlignet med riving av eksisterende bygning og oppføring av et nytt bygg. Imidlertid kan renovering og adaptive gjenbruksprosesser ... -
Why rogue waves occur atop abrupt depth transitions
(Journal article; Peer reviewed, 2021)Abrupt depth transitions (ADTs) have recently been identified as potential causes of ‘rogue’ ocean waves. When stationary and (close-to-) normally distributed waves travel into shallower water over an ADT, distinct spatially ... -
Wind Effects on a Sports Arena
(Master thesis, 2016)Wind effects on the Maier sports arena have been investigated with three different experiment types. The experiments were performed with open land and nearby structures , with south, southwest and west wind direction. ... -
Wind Farm Control Methods - Yawing
(Master thesis, 2016)The wake effect of yawing an upstream turbines is of interest in order to increase power production. In this study, the case of yawing is considered as asymmetric do to the tower and rotor rotation, and measurements have ... -
Wind farm performance
(Master thesis, 2016)Performance of the wind turbine in the wind farm has been analyzed using IEC61400-12-1 wind turbine power measurement standard. Ten minutes averaged wind data was acquired from Windcube v2 LIDAR over the period of twelve ... -
Wind farm performance - Power Analysis of a wind turbine
(Master thesis, 2016)Wind conditions from a wind farm situated in Ørland were analyzed based on a ten minute measurements in order to obtain the power and efficiency curves. The results from the analysis were compared with different curves ... -
Wind field measurements in urban environments
(Master thesis, 2021)Ettersom verden streber etter å senke klima utslipp og forurensing blir fokuset mer og mer rettet mot fornybar energiproduksjon. Kan vind produksjon i urbane miljøer bidra til å senke både lokale og globale utslipp. Et ... -
Wind in Complex Terrain - Lidar Measurements for Evaluation of CFD Simulations
(Journal article; Peer reviewed, 2018)Computational Fluid Dynamics (CFD) is widely used to predict wind conditions for wind energy production purposes. However, as wind power development expands into areas of even more complex terrain and challenging flow ... -
Wind power for cooking
(Master thesis, 2023)Tilgangen på elektrisitet i Tanzania har det siste tiåret vært av de raskest voksende i subsahariske Afrika, med en økende tilgang fra 7% til 37.7% mellom 2011 og 2020. Selv om tilgangen i urbane områder har nådd 73.2%, ... -
Wind power for cooking
(Master thesis, 2023)Tilgangen på elektrisitet i Tanzania har det siste tiåret vært av de raskest voksende i subsahariske Afrika, med en økende tilgang fra 7% til 37.7% mellom 2011 og 2020. Selv om tilgangen i urbane områder har nådd 73.2%, ...