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norskFakultet for ingeniørvitenskap og teknologi
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Vurdering av potensialet for varmegjenvinning av lavtemperatur overskuddsvarme
(Master thesis, 2025)I 2050 skal Norge bli et lavutslippssamfunn, og for å nå denne målsetningen ses det blant annet til hvordan økt utnytting av overskuddsvarme bidrar til å redusere fremtidens energibehov. Mengden overskuddsvarme er i dag omfattende, men utnytting av denne ressursen er foreløpig på et begrenset nivå. Årsaken kommer av store investeringskostnader og lang tilbakebetalingstid ved implementering av ... -
Measurement and Modeling of Spray Frequency and Duration Using Capacitive Sensors for Marine Icing Prediction
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-03)Spray duration and frequency are critical for estimating ice accretion on marine structures. The present expressions for these parameters are limited by insufficient field data, primarily due to inadequate measurement techniques. To address this issue, the SPRICE sea-spray measurement device was developed, incorporating capacitive sensos to accurately measure spray parameters such as the duration ... -
A framework for measurement and modeling of sea spray frequency: A probabilistic approach and a synthetic data-based machine-learning method
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-06-29)Collecting field data is crucial for developing reliable models to estimate ice accumulation from sea spray icing, a phenomenon that significantly impacts the safety and efficiency of marine operations in cold regions. This study evaluates the performance of the SPRICE sea spray sensor equipment in gathering detailed spray data related to the phenomenon, with a present focus on measuring and modeling ... -
Performance evaluation of 3D print farms in additive manufacturing-based supply chains
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-07-18)Additive manufacturing adoption can form new strategic supply chain structures, such as shrinking the number of supply chain tiers and reducing the supplier base. Some companies are motivated to do this because it supports supply chain disintermediation. Understanding this may provide important insights into the long-term competitiveness of products and companies. There are various complexities to ... -
The Interplay between Learning Effect and Order Acceptance in Production Planning
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-07-15)Learning takes time and hence its effects should be considered in short-term production planning (i.e., scheduling). This is especially true when human involvement is high and the shop floor experiences changes in workflow, workforce, or technology. The Single-Machine Scheduling Problem (SMSP) with the learning effect is considered to explore this interplay. The study first proves that the shortest ... -
Fuel Cell Design Considerations and Component Optimisation for Isolated Electric Energy Systems with Periodic Load Patterns
(Journal article; Tidsskriftartikkel, 2025-01-21)This paper presents design considerations for hydrogen-based fuel cell distributed generation units for electricity production in isolated energy systems and vehicles with periodic load pattern, replacing fossil fuel engines. Transient loads, inrush currents, fault currents that may occur in the power system is described. An optimization algorithm is used to find optimal component selection based ... -
Flexibility Markets and their role in congestion management - VPP approach
(Master thesis, 2025)This thesis investigates the role of virtual power plants (VPP) in congestion management and electricity market. With the integration of more distributed energy resources(DERs), grid congestion has become a challenge for the power systems. The VPP control system is seen to improve the stability and efficiency of the grid by optimizing assets such as solar panels, batteries, hydro power generators ... -
Structural Optimization of Sandwich Container Shelter Panels in harsh Nordic environments
(Master thesis, 2025)This thesis focuses on the structural optimization of sandwich panels used in mobile container shelters, particularly the one that TAM AS produces, which is the TAM Brakka mini-3.5m. The main goal is to optimize the shelter’s structural design to achieve the best possible strength-to-weight ratio, which means to reduce weight and improve the stiffness of the floor, roof, and wall panels without ... -
Development of an approach to evaluate the effectiveness of a Reconfigurable Manufacturing System
(Master thesis, 2025)In this thesis a discrete event simulation model was developed, making it possible to evaluate the effectiveness of an RMS by analyzing the utilization and agility of the system. Additionally, the RMS was compared to a flexible and dedicated manufacturing system by implementing these paradigms in the simulation. A case study was conducted, in which the RMS was the most effective alternative in most ... -
Hybrid AI‑Powered Real-Time Predictive Maintenance for Railway Wheelsets and Bogies
(Master thesis, 2025)This thesis presents a Hybrid AI-based predictive maintenance system specifically designed to monitor railway wheels and bogies. The implemented solution uses real-time sensor data such as vibrations, wheel-rail forces, angles, and weather conditions to detect anomalies and predict maintenance requirements in advance. The presented system applies a hybrid anomaly detection framework consisting of ... -
An exploration of the technology selection decisions in energy storage-related infrastructure developments in the Arctic Region
(Master thesis, 2025)The Arctic Region is at the forefront of using renewable energy sources. Distinct challenges arise in the electrification of the Arctic Region, considering harsh climate conditions, long winters, and a sparse population with large distances between settlements. Deployment of energy storage technology is needed to address the intermittency of renewable energy sources, ensuring a reliable grid. A ... -
Optimizing oversize material handling for sustainable operations: A case study at LKAB Norge AS
(Master thesis, 2025)This thesis examines methods to improve the handling of oversized iron ore at LKAB Norge AS, aiming to increase efficiency, reduce environmental impact, and support sustainable operations. Oversized material, fragments larger than 40 mm, presents challenges in the current system, including delays, manual transport, increased emissions, and additional wear on equipment. Regulations also require indoor ... -
Coordinated Controller to Mitigate Voltage Violation in Smart Distribution Network
(Master thesis, 2025)This thesis addresses the increasing challenges posedby highphotovoltaic(PV) penetration in distribution networks, specifically focusing on voltage stability issues caused by extreme seasonal generation variations. Current voltage con- trol approaches fail to effectively manage these fluctuations- tests on the IEEE 37-bus system showed summer solar production is over 5 times higher than in winter. ... -
Brannteknisk prosjektering av bygg i tiltaksklasse 3
(Master thesis, 2025)Brannteknisk prosjektering av byggverk er svært viktig for å ivareta brannsikkerheten i byggverkene i Norge. Prosjekteringens vanskelighetsgrad og kompleksitet er avgjørende for hvilken kompetanse prosjekterende foretak må inneha [1]. På bakgrunn av dette har denne oppgaven som hovedformål å kartlegge hvilke krav som gjelder ved brannteknisk prosjektering i tiltaksklasse 3, og hvilken fremgangsmåte ... -
Effektive metoder for å redusere lekkasjer i Ullensvang kommunes vannforsyningsnett
(Master thesis, 2025)Ullensvang kommune står overfor betydelige utfordringer knyttet til lekkasjer i vannforsyningsnettet, med et estimert vanntap på over 48 prosent. Dette representerer både store økonomiske kostnader og en unødvendig miljøbelastning. Masteroppgaven undersøker årsakene til lekkasjene og foreslår en helhetlig og trinnvis tiltaksstrategi som kombinerer moderne teknologi, driftsoptimalisering og organisatoriske ... -
Durability study of new types of low-carbon concrete planned for long-term monitoring station
(Master thesis, 2025)Civil engineering is a fast-evolving discipline, and nowadays trend toward sustainability is bringing new challenges that have to be addressed. The evolution is mainly visible in structural and architectural design. An indispensable part of civil engineering is a material technology that is facing much pressure regarding carbon footprint reduction. Concrete, the most common building material, ... -
Brannteknisk vurdering av ventilasjonsløsning - E-fløyen på UiT Campus Narvik
(Master thesis, 2025)Sammendrag E-fløyen ved UiT Campus Narvik ble i perioden 2019-2020 totalrenovert og ombygget etter NS 3701 Kriterier for passivhus og lavenergibygninger - Yrkesbygninger. Det ble installert flere nye ventilasjonsanlegg i det nye og moderne skolebygget, samtlige ventilasjonsanlegg omfattet av ombyggingen ble utstyrt med balansert ventilasjon, lokal kjøling og behovsstyrt ventilasjon. Det ble utarbeidet ... -
Energiforbruk og tekniske installasjoner i bygninger: Feil, mangler og konsekvenser
(Master thesis, 2025)Denne oppgavens mål var å finne typiske feil i tekniske anlegg og energikonsekvensene av dem. Likestilt med klassifiseringen ‘feil’, ble det også sett på energirelaterte ‘mangler’ i eksisterende bygg. De avdekte feilene og manglene ble gjort gjennom intervjuer av kvalitative intervjuobjekter, og litteratur søking. Basert på innsamlet informasjon i oppgavens innledende del ble et eksempelbygg laget ... -
Evaluering av Forvaltningspraksis av Mindre Avløpsanlegg i Narvik Kommune, Norge
(Master thesis, 2025)Utslipp fra mindre avløpsanlegg under 50 personekvivalenter (PE) utgjør en betydelig kilde til forurensning av norske vannforekomster. Til tross for at kommunene har et lovpålagt ansvar for å føre tilsyn med disse anleggene, viste Statsforvalterens tilsyn i 2022 at mange kommuner fortsatt mangler nødvendig oversikt og ikke har iverksatt et systematisk tilsynsarbeid. Denne masteroppgaven undersøker ... -
Electrokinetic remediation of fish farm sludge
(Master thesis, 2025)Norway’s fish farming industry generates large amounts of sludge waste that can pollute seafloors and over-enrich the waters if badly managed. The sludge is nutrient rich, but is often exported with minimal processing, missing opportunities for resource recovery. Rising environmental awareness has increased the interest in sustainable sludge management to treat waste as a resource rather than a ...
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