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Digital Twin and Deman Response – Sustainable Tools for Quality and Energy Consumption Optimization in Manufacturing
Full text linkThe manufacturing industry is an important part of safe and sustainable growth in Europe. Sustainable and flexible tools in the energy sector can bring benefits for quality assurance of the produced goods. This paper takes a closer look at combining such concepts as digital twins and demand response to optimize the use of renewable energy resources that will be a game changer for any industry in the future. Conceptual models connected with each other in an aggregator platform will assist various manufacturing processes to adapt to the energy market through increased use of renewable energy resources at the lowest possible cost.acceptedVersio
Alvorlige ulykker i fiskeflåten – årsaker og tiltak - Oppsummerende faglig sluttrapport
Full text linkDenne rapporten oppsummerer resultater fra FHF-prosjektet «Alvorlige ulykker i kystfiskeflåten – årsaker og tiltak». Prosjektet har bidratt med oppdatert kunnskap om årsaker til ulykker og sikkerhetsutfordringer i arbeidsmiljøet og forslag tiltak for å redusere risikoen for personskader. Det er utarbeidet årsakskart for fem ulykkeshendelser: forlis, fisker over bord, fall om bord, slag-/klemulykker og drukning i havn. For hver hendelse er tiltak innenfor fem kategorier beskrevet: arbeidspraksis, arbeidsplass, arbeidsbekledning og personlig verneutstyr, opplæring og kompetanse, og rammebetingelser og regulering. Sentrale interessenter som direkte eller indirekte kan påvirke sikkerheten i fiskeflåten er også kartlagt. Rapporten beskriver også behov for videre FoU-arbeid innen HMS i fiskeflåten.Alvorlige ulykker i fiskeflåten – årsaker og tiltak - Oppsummerende faglig sluttrapportpublishedVersio
Heat pumps in Europe: perspectives and innovation challenges
Full text linkHeat pumps play a crucial role in the transition toward sustainable energy. This review draws on an extensive range of resources to analyse advancements in heat pump technologies and their contribution to achieving the European Union’s (EU) goals on clean and secure heating/cooling. First, it provides a comprehensive overview of the status and trajectories of heat pump penetration, recent regulations, market growth projections, and supply chain challenges within the EU. Then, the report highlights state-of-the-art technological advancements and innovation trends in areas such as refrigerant and component development, optimal operation, and smart integration with other technologies, including alternative heating and cooling systems, thermal and electrical storage, and solar energy. These insights are based on recent reports, literature, and market updates. Following this analysis, this review leverages data from a large number of projects related to emerging heat pump innovations supported by the European Innovation Council, to summarise the direction of research and innovation, showcasing real-world examples of projects and startups shaping the future of heat pump technology. Finally, the review identifies non-technical barriers and policy actions needed to accelerate innovation in the field. Heat pumps are essential to achieve to net-zero targets in Europe and enhance European energy autonomy, and this review aims to provide policymakers with evidence-based insights to foster the widespread implementation of heat pumps in energy systems.publishedVersio
A Modular and Scalable Approach to Hybrid Battery and Converter Integration for Full-Electric Waterborne Transport
Full text linkThis paper presents a flexible and scalable battery system for maritime transportation, integrating modular converters and hybrid battery technologies that are effectively implemented in real-world scenarios. The proposed system is realized with modular DC-DC converters, which do not require complex design and control or a high number of components and combine high-power (HP) and high-energy (HE) battery cells to optimize the energy and power requirements of vessel operations without oversizing the energy storage system. Moreover, the modular design ensures flexibility and scalability, allowing for easy adaptation to varying operational demands. In particular, the system topology, control mechanisms, and communication protocols are explained in this paper. The concept has been validated through simulations and real-scale laboratory tests, demonstrating its effectiveness. Key results highlight the system’s ability to maintain the DC bus voltage while operating at high efficiency (ranging from 97% to 98%) under different load conditions, supported by reliable and demanding real-time communication using the EtherCAT standard. This real-time capability has been validated, and related results are presented in this paper, showing a synchronization accuracy below 200 ns between two modules and a stable control at a cycle time of 400 µs. This approach offers a promising solution for reducing greenhouse gas emissions in the maritime industry, aligning with global sustainability goals. Keywords: DC-DC power converter; electric vessel; energy storage system (ESS); EtherCAT; hybrid; modular converter; real timeA Modular and Scalable Approach to Hybrid Battery and Converter Integration for Full-Electric Waterborne TransportpublishedVersio
Multi-stage monitoring of hydrogen systems for improved maintenance approaches: an extensive review
Full text linkHydrogen is considered a promising solution for global decarbonisation as an alternative to fossil fuels. However, it can interact with and brittle most metallic materials and is highly flammable. These properties call for a systematic investigation of physical and chemical hazards and for the definition of a comprehensive risk management and monitoring framework, including proper maintenance planning. This study aims at establishing a hydrogen monitoring scheme and it provides a descriptive, bibliometric, and interpretative review of the current state-of-the-art of suitable techniques to ensure the safe handling of hydrogen systems. The descriptive analysis outlines the technologies available to supervise the hydrogen-material interactions and detect hydrogen leaks and flames. The bibliometric analysis shows quantitative data to identify the most relevant research groups. The interpretative study discusses the findings and examines the possibility of combining the identified techniques with maintenance programs to prevent catastrophic events.Multi-stage monitoring of hydrogen systems for improved maintenance approaches: an extensive reviewpublishedVersio
Safe delivery of goods and services with smart door locks: Unlocking potential use
Full text linkThe purpose of this paper is to identify the potential of using smart door locks in unattended home delivery of goods, and at home services (unattended and attended) by producing new knowledge on Potential adopters and Non-adopters. Survey data on Potential adopters and Non-adopters were statistically analysed to identify their 1) characteristics (sociodemographic, interpersonal trust and technological literacy), 2) stated demand for unattended home delivery of goods and 3) attitudes regarding in-home services using smart door-locks. Results suggest that potential users are resourceful and more sociable than non-adopters. Furthermore, they have a higher problem perception. Potential adopters are more positive to let in cleaners, craftsmen, healthcare personnel, service personnel, in-fridge delivery services and pet sitters into their home unattended using smart door locks. Regarding goods, they are more positive towards delivery of sports equipment and furniture and appliances. Due to the differentiated needs of Potential adopters and Non-adopters, we propose a typology based on three dimensions (Technological trust, Social trust and Life management needs). Increased understanding of potential users’ delivery preferences can be used in the smart door lock market development. The proposed typology can e.g. be used in the upscaling of smart door locks for home delivery of goods and services by diversifying strategies to meet varying adopter needs. A successful unattended delivery system behind closed door can reduce the number of failed deliveries, porch piracy, and unnecessary trips to let in service providers, and might enhance perceived flexibility and convenience of consumerspublishedVersio
Samfunnsøkonomiske kostnader som følge av flom og stengte hovedveger i Lærdal - Analyse av vegstenginger i uregulert og regulert vassdrag
Full text linkFormålet med SamVann-prosjektet har vært å utvikle en metode for å anslå den samfunnsøkonomiske nytteverdien av vannkraft som flomdempende infrastruktur. Dette har inkludert bygging av kostnadsfunksjoner for flomskader på bygninger, infrastruktur og annen arealbruk i utvalgte «case», inkludert Lærdalselva mellom Stuvane og elvas utløp i fjorden. Kostnadsfunksjonene har blitt koblet til hydraulisk simulering av flomareal på flommer med ulike gjentaksintervall med og uten vannkraftreguleringseffekt. Det er også gjort vurderinger av fremtidens flomhendelser i de ulike casene gjennom lokale klimaanalyser.
Som en del av case Lærdal er det gjort analyser av de samfunnsøkonomiske kostnadene knyttet til stengte hovedveger som følge av flom. Kostnadene er beregnet med utgangspunkt i to tilnærminger for Lærdalselva: 1) Dagens situasjon med regulering i vassdraget, og 2) En tentativ situasjon uten reguleringseffekt i vassdraget. Prosjektnotatet presenterer og oppsummerer resultatene fra disse analysene og vil danne et grunnlag for videre utvikling av flom-modulen til Statens vegvesens nytte kostnadsanalyseverktøy EFFEKT.publishedVersio
Ultrasonic pulse-echo dataset from numerical modelling for oil and gas well integrity investigations
Full text linkThe ultrasonic pulse-echo (PE) measurement is a crucial measurement technique to determine the integrity of oil and gas wells. Oil companies use various analysis techniques and corrections to derive the pipe thickness and impedance of the material behind the pipe from PE measurements that are carried out inside the pipe. While some field measurements are publicly available, they have no corresponding ground truth. We therefore simulated a dataset of PE measurements with ground truth. The dataset was generated using axisymmetric models and 3D models in COMSOL Multiphysics. The base geometry was based on common parameters from the field: oil-based mud on the inside of a 9.625 in pipe and cement on the outside of the pipe. From this base geometry, variations in the model parameters were introduced, for example, plate/pipe wall thickness, different materials on both sides of the wall, different pipe diameter, different annulus thicknesses, eccentering. The generated dataset allows detailed investigations of existing PE analysis algorithms, comparison of those and development of new PE analysis techniques.publishedVersio
First-principles methodology for developing robust NIR spectroscopic solutions for real-world applications
Full text linkA physics-based approach for pushing the limits of our custom-designed near-infrared (NIR) interactance spectroscopic instruments is presented, demonstrating how more robust measurements in demanding real-world applications can be achieved. Achieving sufficient instrument performance within given design constraints requires a balancing act between the sensor size and cost, its tolerance for extrinsic environmental influences, and the sample complexity. Using an example case of in-field, non-contact robotic measurements of sweetness in strawberries, we demonstrate a step-by-step approach for building a holistic understanding of the entire measurement solution, from 1) instrumentation to 2) sample properties and 3) data analysis. This includes incorporating knowledge about the impact of environmental influences and non-optimal instrument design, and how the physical and chemical characteristics of complex, highly scattering food products affect our measurements. When incorporated into the instrument design process, this can improve the measurements and the robustness of the multivariate prediction models.acceptedVersio