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 ...

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. ...

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 ...

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, ...

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 ...

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 ...

Operating unmanned aircraft from vessels in the open ocean is demanding both on the personnel involved in the operation and on the aircraft. The work presented here aims to alleviate the workload on pilots and other personnel by introducing a higher level of automation in the landing phase of a flight. This will help create value for all parts of the supply chain, from product developers through ...

The research develops two automated data analysis frameworks, ARMADA and FACTS, to tackle essential operational problems in warehouse robotics systems. Warehouse robotics environments encounter ongoing problems with maintenance optimization and technical documentation processing that negatively affect operational efficiency. The ARMADA(Anomaly Recognition for Maintenance and Diagnostic Applications) ...

The goal of the project is to use and suit a transformer based foundation model such as Lag-Llama (https://arxiv.org/abs/2310.08278) to forecast energy prices. Lag-Llama is pretrained on a large corpus of diverse time series data from several domains, and demonstrates strong zero-shot generalization capabilities compared to a wide range for forecasting models. The forecasting task should focus on ...

The analysis of electrocardiogram (ECG) signals is vital for the early detection and diagnosis of cardiac abnormalities, yet progress in automated ECG interpretation is constrained by the scarcity of high-quality labeled data. This thesis investigates unsupervised contrastive learning as a means to overcome these limitations and unlock clinically relevant representations from unlabeled ECG recordings. ...