Browsing Master theses by Title
Now showing items 69-88 of 125
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Life cycle assessment of hydrogen fuel in aviation
(Master thesis, 2020-07-01)The aviation sector emits 2% of the global emissions caused by transportation. This is a problem for our global climate and has also shown to be an issue for the public after the Swedish boycott of airtravel, inspired by ... -
Long-term changes in the Nordic Seas' hydrographic structure and overflow waters
(Master thesis, 2020-06-30)A collection of historical hydrographic data was used to examine the hydrographic properties of the water masses in the Nordic Seas from 1950 to 2018, with particular focus on the dense overflows from the Nordic Seas. ... -
Low-level jet height’s impact on wind turbine loads: A case study
(Master thesis, 2023-06-01)Over the years, wind turbines have been steadily increasing in size, with newer models boasting larger dimensions. For instance, the diameter of an installed prototype offshore wind turbine in late 2022 was over 200 m, ... -
Machine learning for early detection of structure loss in the Czochralski process
(Master thesis, 2024-06-03)This thesis investigates the use of machine learning techniques to predict structural loss in the Czochralski process. The Czochralski process is the industry standard for producing high-quality mono-crystalline silicon ... -
MARINE PLASTIC DRIFT FROM THE MEKONG RIVER TO SOUTHEAST ASIA
(Master thesis, 2022-11-21)Plastic waste has been identified as a major worldwide environmental issue (Sun et al., 2021; Zhang et al., 2020). Jambeck et al. (2015) estimated that between 4.8 and 12.7 million tons of plastic waste enters the ocean ... -
Measurement and Modelling of Underwater Acoustic Noise induced by Offshore Wind Turbines under the Effects of Varying Oceanic and Sea-State Conditions
(Master thesis, 2022-06-01)In this thesis, we have performed several processing methods for analysing available hydrophone data. This was done in order to study the sound pressure levels in the vicinity of an offshore wind farm, and to identify ... -
Mesoscale variability of the Antarctic slope front and the slope front current
(Master thesis, 2022-06-01)The Weddell Sea is essential for the global climate due to the production of the dense shelf water that contributes to the Weddell Sea Bottom Water (WSBW), feeding the lower limb of the global thermohaline circulation (Orsi ... -
Microbial behavior and hydrogen consumption of Oleidesulfovibrio alaskensis - Implications for subsurface hydrogen storage
(Master thesis, 2023-06-01)To reduce global warming an energy transition going from fossil fuel to renewable energy is required and energy storage opportunities to store surplus electricity are needed. Hydrogen gas (H2) is an energy carrier and can ... -
Miljøpåvirkninger fra produksjon og bruk av hydrogen i maritim transport
(Master thesis, 2020-07-01)I denne studien er hydrogen foreslått som et alternativt drivstoff for maritim transport. Miljøpåvirkninger fra å erstatte konvensjonelle fossile brensler i sjøtransport med hydrogen vurderes ved å utføre en livssyklusvurdering ... -
Modification and Analysis of a Multimegawatt Floating Spar Wind Turbine
(Master thesis, 2021-11-22) -
Monitoring Soil Moisture Drought over Northern High Latitudes from Space
(Peer reviewed; Journal article, 2019-05-20)Mapping drought from space using, e.g., surface soil moisture (SSM), has become viable in the last decade. However, state of the art SSM retrieval products suffer from very poor coverage over northern latitudes. In this ... -
Numerical Investigation of a Radially Cooled Turbine Guide Vane Using Air and Steam as a Cooling Medium
(Master thesis, 2021-06-01)Gas turbine performance is closely linked to the turbine inlet temperature, which in turn is limited by the turbine guide vanes ability to withstand the massive thermal loads. To improve the efficiency in modern high-temperature ... -
Numerical Investigation of the Use of Nanofluid in a Photovoltaic Thermal System
(Master thesis, 2022-06-01) -
Numerical Simulation of Nanofluid Cooling in a Single-Cylinder Diesel Engine
(Master thesis, 2023-06-01) -
Oceanic heat transport towards Getz Ice Shelf, Amundsen Sea
(Master thesis, 2019-12-11)Two years of mooring data from a trough leading up to one of the central ice shelf fronts of the Getz Ice Shelf, Western Amundsen Sea, are used to describe the local hydrography and currents, their variability and possible ... -
Offshore wind power and hydrogen for oil and gas platform electrification
(Master thesis, 2022-06-01) -
Oil Spill Modeling in Sea Ice Covered Ocean
(Master thesis, 2021-06-01)The ongoing reduction in extent and thickness of sea ice in the Arctic allows the expansion of shipping activity and oil exploration in the high north, and with that a potential increased risk of oil spill in ice covered ... -
Ombygging av en én-sylindret dieselmotor til dual fuel-drift og testing av alternative gassformede drivstoff
(Master thesis, 2020-06-26)Denne rapporten beskriver ombygging av en én-sylindret dieselmotor til dual fuel-drift, og videre testing av alternative gassformede drivstoff. I tillegg omhandler rapporten simuleringer gjort på samme motor ved hjelp av ... -
On the use of a new mathematical formulation for loads- and motion analysis of a mooring line
(Master thesis, 2023-11-20)This master thesis investigates the use of a new mathematical model for calculating loads and dynamic motion of a mooring line. Current industry standard mooring analysis tools uses a lumped parameter modelling approach. ... -
On the use of car observations to evaluate and improve road weather forecasting
(Master thesis, 2023-06-01)