Blar i tittel Master’s Theses in Technology and Safety in the High North

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    • Limitations of Ice Accretion on Offshore Aquaculture Facilities 

      Marsden, Benjamin (Master thesis; Mastergradsoppgave, 2021-12-15)
      Sea spray icing is a constant risk for fish farms operating in cold climates, such as on the Northern Norwegian coast, and there must therefore exist methods to reduce this risk. This thesis discusses the consequences of ice accretion to the traditional plastic circular fish cage design, and how the cage reacts under the pressure of added mass from sea spray icing. The prediction of sea spray icing ...

    • MarSpray LiDAR (MSL) for the comprehensive measurement of Sea Spray for Improving the Prediction of Marine Icing in Cold Conditions 

      Dhar, Sushmit (Master thesis; Mastergradsoppgave, 2021-06-01)
      Marine icing is a very complicated phenomenon, and its prediction, evaluation, and estimation involve many uncertainties. Commonly, the most severe ice accretion is caused by sea spray. A substantial amount of study is present on sea spray ice accretion about modelling and numerical simulations with certain assumptions and not based on comprehensive real-time data. The past techniques used to measure ...

    • Matsikkerhet i Norge. Er forsyningsberedskapen tilstrekkelig? 

      Steien, Terese (Master thesis; Mastergradsoppgave, 2016-06-01)
      Tittelen på avhandlingen lyder slik: ‘Matsikkerhet i Norge – er forsyningsberedskapen tilstrekkelig?’ Denne avhandlingen omhandler matsikkerhet og en risiko- og sårbarhetsanalyse. Målet var å finne ut hvilken matsikkerhet som er i landet, hva som påvirker den og om forsyningsberedskapen er tilstrekkelig ved en eventuell krise. Målet var også å utføre en risiko- og sårbarhetsanalyse for å se på ...

    • Mechanical and impact tests of CFRP. An experimental and numerical study of the mechanical properties of CFRP samples with varying temperatures, using Four-point bending, Charpy and Air gun tests 

      Strand, Cathrine Høgmo (Master thesis; Mastergradsoppgave, 2017-06-01)
      With increasing popularity of carbon fiber reinforced polymer (CFRP) over time, the need of research in the field increases along with it. The aim of this project was to study the mechanical properties of CFRP with varying temperature settings. A four-point bending test was performed to find the deflection of CFRP in room temperature, and after being exposed to cold temperature. A numerical test was ...

    • Modeling and simulation of power and energy demands to dimension an alternative energy supply for the aquaculture industry. Use of OpenModelica to develop an applicable simulation model for the energy and power demands 

      Hokland, Øyvind (Master thesis; Mastergradsoppgave, 2020-07-11)
      The purpose of the research is to investigate whether feed barges currently running on diesel generator can be powered by alternative energy sources where power from shore is limited. Through data collection, several models are developed in OpenModelica to represent the power and energy distribution on a feed barge. Using the Power Systems library provided in OpenModelica, it has offered benefits ...

    • Modelling of Marine Icing with Close Range Photogrammetry 

      Haukebø, Asbjørn Risholm (Master thesis; Mastergradsoppgave, 2015-05-01)
      Installations and vessels operating in the high North in the winter season are likely to be subjected to marine Icing. To date there are no sensor technology available to accurately measure the total weight or volume of the ice. Photogrammetry is a universal 3-D measuring technique applied in a wide range of interdisciplinary fields. Agisoft PhotoScan is a photogrammetry software utilizing Structure ...

    • Navigation in the Arctic. How can simulator training be used for assessment and reduction of risk? 

      Røds, Johan-Fredrik (Master thesis; Mastergradsoppgave, 2018-06-01)
      Over the recent years, the ship traffic in the polar areas has increased. There is reason to believe that this traffic, and especially the cruise traffic, will increase further as the ice retracts towards the poles. There is also reason to believe that with the continued focus and exposure of the Polar Region, the cruise tourism to the region will grow.The increased presence in the polar areas will ...

    • New Perspectives for an Intelligent Risk-Based Decision Support Framework for Asset Integrity Management. Means for Sustainable Asset Integrity Management in the Norwegian High-North. 

      Ilora, Obiora Nnamdi (Master thesis; Mastergradsoppgave, 2018-11-20)
      The Norwegian Arctic - Barents Sea, is attracting more oil and gas developments. The associated growth of assets will face heightened integrity issues considering the prevalent climatic and challenging operating conditions in the Arctic. This thesis focuses on identifying asset integrity management critical success factors which are often neglected but are the bed rock of asset integrity management. ...

    • Oil Spill Behavior and Response in the Arctic. Risk Analysis of Existing Response Methods Applicable for the Arctic Conditions 

      Zhelezniak, Viktoriia (Master thesis; Mastergradsoppgave, 2021-06-01)
      Due to the demand for diversifying and modifying sources of raw materials and trade routes, the Arctic is the region of high interests. Development and carrying out the offshore activities associated with oil and gas industry and maritime transport are growing rapidly in the Arctic. However, an acute problem associated with the development of offshore activities is the ecological consequence caused ...

    • Oil Spill Preparedness and Response in the Arctic. The effect of low temperature on oil spill response operations in the Arctic with respect to overall equipment effectiveness 

      Rolandsen, Markus Helfjord (Master thesis; Mastergradsoppgave, 2018-06-02)
      Effectiveness is an important term in oil spill response operations. Literature often relate to the level of effectiveness connected to either mechanical containment and recovery, in-situ burning or chemical dispersant application. The term effectiveness in oil spill response operations can be related to existing theory and the perspective of Overall Equipment Effectiveness (OEE). The perspective ...

    • Optimal Ordering Strategy of Perishable Products 

      Bjørvik, Simon Sagelv (Master thesis; Mastergradsoppgave, 2016-07-13)
      It is challenging to plan for the future, especially if there are uncertainties. In the retail store business making the right orders at the right time might have a severe impact on the profit of the store. Maintaining the right inventory is a part of this. With fluctuations in price and competition, having the best deals, and being at the whims of the customers making sure that the store has the ...

    • Optimization of maritime operations in Arctic. Rating of improvement of weather routing/decision support systems for maritime operations in the Arctic region 

      Johansen, Kåre (Master thesis; Mastergradsoppgave, 2013-05-15)
      Abstract The decreased ice extent caused by increased air and sea temperatures has led to a growing interest in the Arctic waters. There are different maritime industries that have plans to expand northwards for various reasons. First of all there are different developments in oil and gas industry in Barents, Kara, Greenland, Arctic sea around the coast of Canada and Alaska. New ship trading ...

    • Preventing Atmospheric Icing in Aviation: Passive Repulsion of Super Cooled Water Droplets through Hydrophobic Nanocomposites 

      Hobitz, Gøran Frantzen (Master thesis; Mastergradsoppgave, 2020-07-13)
      The aviation industry already consists of a complex system of strict regulations related to operation and maintenance, where severe weather conditions further challenge flight operations. Recent research has shown that most aircraft accidents are caused by icing externally, where severe icing conditions lead to the critical degradation of the aerodynamic effectiveness – increasing the stall speed. ...

    • Real time estimation of measurement in annular pressure and their relationship with pore and fracture pressure profile 

      Hassan, Syed Yasir (Master thesis; Mastergradsoppgave, 2016-06-01)
      The drilling industry still faces the challenge of acquiring accurate and viable precision of subsurface pressure data. To address this, drilling industry is keen to establish accurate and reliable measurement of pressure in wellbore and to estimate the pore pressure and fracture pressure profile with utmost precision. In any drilling operation, it is important to maintain the annulus pressure ...

    • Resilience assessment of the transport corridor from Stokmarknes to Stockholm 

      Ashrafi, Behrooz (Master thesis; Mastergradsoppgave, 2019-08-01)
      Timely delivery of the required goods plays an important role in meeting the availability and reducing the downtime of Markets. Salmon transport logistics is affected in complex ways while operating in the Arctic, since the area is sparsely populated and has insufficient infrastructure. It is also greatly affected by the distinctive operational environment of the region, such as cold temperature, ...

    • Resilience, Reliability, and Recoverability (3Rs) 

      Jheeta, Manjit Singh (Master thesis; Mastergradsoppgave, 2022-01-06)
      Recent natural and human-made disasters, mortgage derivatives crises, and the need for stable systems in different areas have renewed interest in the concept of resilience, especially as it relates to complex industrial systems with mechanical failures. This concept in the engineering systems (infrastructure) domain could be interpreted as the probability that system conditions exceed an irrevocable ...

    • Risk of Ship Collision in the Barents Sea in 2030 

      Balto, Jan Børre Hansen (Master thesis; Mastergradsoppgave, 2014-06-01)
      This thesis evaluates the risk of ship collisions in the Barents Sea in 2030 between three future scenarios; Minimum, Basis and Maximum Scenario. IWRAP Mk2 program is utilized to make the calculations. Automatic Identification System (AIS) data of 2013 is used to parameterize current traffic density, while the increased traffic in the different scenarios is derived from an analysis of multiple ...

    • Risk-Based Spare Part Planning. Uncertainties and Operational Conditions 

      Ayele, Yonas Zewdu (Master thesis; Mastergradsoppgave, 2013-03-20)
      Estimates which indicate a large share of the world’s undiscovered oil and gas resources is to be found in the Arctic areas and the increasing demand for energy are important reasons for the growing interest in the High North region. As the offshore industry expands into the High North, system failures associated with these projects is expected to increase significantly. Hence, the quest for ...

    • Roll motion on small traditional Norwegian fishing vessels 

      Kristiansen, Gøran (Master thesis; Mastergradsoppgave, 2021-08-09)
      Roll motion is one of the six degrees of freedom and is the most difficult to predict, as roll motion is extremely sensitive to the viscous effect and induced flow separation. The smaller fishing vessel fleet commonly operates in almost all weather conditions, and sometimes in remote areas with cold arctic water where rescue can be far away and difficult. The safety of fishers depends on the vessel's ...

    • Root Cause Analysis of fire in waste facilities: A case study of Tromsø municipality 

      Kargar, Marjan (Master thesis; Mastergradsoppgave, 2021-06-01)
      The amount of waste produced in Norway has been increased considerably in the past decades as a result of population and economic growth. Therefore, the role of waste management companies in society has become more important. One of the significant challenges in the waste facilities is the fire that occurs regularly and causes various problems for the waste management companies. Several causes can ...