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norskMaster’s Theses in Technology and Safety in the High North
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Snow detection on antenna radomes using signal processing
(Master thesis; Mastergradsoppgave, 2022-06-25)Radomes are dome-shaped covers that protect the antenna from the climate, such as rain, wind, sunlight, and snow. Even though the radomes protect the antenna from snow and ice, it does not prevent snow and ice from building up on the radome. When snow and ice build up enough on the radome, the signal passing through it loses strength. This project tries to detect snow and ice build-up on antenna ... -
Vessel operations in relation to new types of offshore aquaculture facilities, and weather windows in exposed areas
(Master thesis; Mastergradsoppgave, 2022-06-01)The marine aquaculture industry is expanding the production into new sea areas. The technology is advancing, and offshore aquaculture facilities are being developed. The offshore developments can offer significant benefits that applies to the economy, optimization of operations and production, as well as minimizing the impact on the coastal areas. Structural and operation procedures need to be ... -
Implementation of Virtual Reality (VR) simulators in Norwegian maritime pilotage training
(Master thesis; Mastergradsoppgave, 2022-06-01)With millions of tons of cargo transported to and from Norwegian ports every year, the maritime waterways in Norway are heavily used. The high consequences of accidents and mishaps require well-trained seafarers and safe operating practices. The normal crews of vessels are supported by the Norwegian Coastal Administration (NCA) pilot service when operating vessels not meeting specific ... -
Investigation of UAV related incidents and accidents
(Master thesis; Mastergradsoppgave, 2022-05-30)To this day, there is a lack of research on unmanned aerial vehicle (drone) related incidents and accidents. Knowing why these happen, what potential outcomes they may have and how to avoid them from occurring, can be crucial. There is, furthermore, potentially a lack of transparency in the unmanned aviation industry, regarding reporting of incidents. In order to prepare conclusions within one set ... -
Preventing Atmospheric Icing in Aviation: Passive Repulsion of Super Cooled Water Droplets through Hydrophobic Nanocomposites
(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. ... -
Limitations of Ice Accretion on Offshore Aquaculture Facilities
(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 ... -
Resilience, Reliability, and Recoverability (3Rs)
(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 ... -
Training of seafarers working on ships operating in polar waters
(Master thesis; Mastergradsoppgave, 2022-01-11)The aim of this thesis is to identify the competence gaps for seafarers who sail in polar waters have after completing the existing training courses based on the Polar Code. The best way to protect the environment and people in the Polar regions is by increasing the knowledge and competence of the people working in the vulnerable regions to ensure they make the best possible decisions and avoid ... -
Roll motion on small traditional Norwegian fishing vessels
(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 ... -
Accident Prediction Model Using Machine Learning. Accuracy of Predicted Model
(Master thesis; Mastergradsoppgave, 2021-06-22)Logistic regression is a predictive model machine learning algorithm that displays the results in a binary form, mostly used in prediction multivariable and as an advanced version of linear regression, here we used to predict the accuracy of our model. Current accident prediction model in Norway is Tusi is a risk based model used in predicting tunnel accidents but it has some problems and loose ends ... -
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
(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 ... -
Oil Spill Behavior and Response in the Arctic. Risk Analysis of Existing Response Methods Applicable for the Arctic Conditions
(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 ... -
Root Cause Analysis of fire in waste facilities: A case study of Tromsø municipality
(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 ... -
MarSpray LiDAR (MSL) for the comprehensive measurement of Sea Spray for Improving the Prediction of Marine Icing in Cold Conditions
(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 ... -
Arctic region as a new hydrocarbon production area. Technology needs and equipment availability for the development of the Russian Arctic
(Master thesis; Mastergradsoppgave, 2021-05-16)In this thesis, a number of questions, concerning the present and the future of Russian hydrocarbon policy in the Arctic area are covered, with a description of necessary technologies and main projects that constitute Russian plans for the nearest decade up to 2030 in presence of western technological and financial sanctions, available equipment and potential for localization. The main contribution ... -
Implementation and Control of an Inverted Pendulum on a Cart
(Master thesis; Mastergradsoppgave, 2021-05-28)An Inverted Pendulum on a Cart is a common system often used as a benchmark problem for control systems. The system consists of a cart that can move in one direction on the horizontal plane and a pendulum attached to the cart through a hinge point. The pendulum can rotate 360° on the plane made up of the vertical direction and the direction the cart can move. The system is controlled by applying a ... -
Simulation of Meteorological and Oceanographic Parameters: An Application in Spray Icing Prediction
(Master thesis; Mastergradsoppgave, 2020-07-13)Sea spray icing is considered as a major environmental challenge in the Arctic Ocean, which poses a critical risk not only to the vessels and industrial operations but also to human safety. Although some studies have been carried out to estimate spray icing rate (e.g., RIGICE04 and ICEMOD models), such models suffer from some unrealistic modeling assumptions and limited verification. Moreover, limited ... -
Feasibility study of Preventing Snow Accumulations on Roofs using Airflows
(Master thesis; Mastergradsoppgave, 2020-07-09)This thesis is intended to contribute to research in cold climate engineering. Further it intends to provide a principle solution for structural and avalanche safety due to snowfall on roofs. We have conducted a feasibility study of preventing snow from accumulating on roofs using airflows. This includes empirical, numerical and experimental methods. Snow loads on roofs makes great impact on ... -
A Feasibility Study of Using Waste Thermal Energy from a District Heating System for Absorption Cooling
(Master thesis; Mastergradsoppgave, 2020-07-13)Waste incineration-based district heating plants in Norway struggle from energy efficiency drawbacks during the warmer months of the year from May - September due to the reduced demand in heating. As a result, thermal energy gets discarded to ambient air, which affects the energy efficiency of the plants. This study aims at presenting an overview of the waste incineration industry in Norway and ... -
Study of failure profiles in the bridge structures
(Master thesis; Mastergradsoppgave, 2019-10-15)Bridge safety is an indispensable part of transportation safety. However, each bridge is unique with respect to its material, design and the environment which it is located in, and other relevant factors. This makes defining a unified framework for studying and categorizing failures in the bridges a difficult task. The current report aims at taking the first step to reach such a goal. This report ...
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