IFE Brage (Institute for Energy Technology)
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997 research outputs found
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Bimetallic Ni-Co nanoparticles as an efficient catalyst of hydrogen generation via hydrolysis of NaBH4
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Second life batteries: The potential for new energy storage solutions from re-use of Norwegian electric vehicle and maritime batteries
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Hydrogen uptake during active CO2-H2S corrosion of carbon steel wires in simulated annulus fluid
Get PDFThe hydrogen uptake of five carbon steel wires exposed to a corrosive CO2/H2S environment where protective film formation was not favorable was measured. The hydrogen uptakes decreased with the accumulation of retained carbide for most of the materials. It is assumed that hydrogen adsorbed on carbides at some distance from ferrite will not easily diffuse to the steel, hence giving the beneficial effect. This effect was not observed for the material with the lowest carbon content. Apart from this material, the hydrogen uptake increased with the carbon content, probably due to hydrogen trapping on ferrite-cementite interfaces.publishedVersio
Intercomparison exercise on difficult to measure radionuclides in spent ion exchange resin
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Modelling the interaction between the energy system and road freight in Norway
Get PDFBy soft-linking models for transport demand, vehicle turnover and energy generation and use, we show how such models can complement each other and become more relevant and reliable policy support tools. A freight demand model is used to project commodity flows onto the 2050 horizon. An energy system model is used to map the relationships between energy prices, fiscal incentives, and optimal vehicle technologies. A stock-flow vehicle fleet model is used to calculate the time lag between innovation affecting new vehicles and the penetration of novel technology into the fleet. By running the latter two models in an iterative loop, we predict the flow of new vehicles with more or less decarbonized powertrains, contingent upon energy prices and fiscal incentives, while also obtaining a well-founded and more realistic assessment of the time needed for radical CO2 mitigation. The methodology is illustrated through a scenario developed for Norway.Modelling the interaction between the energy system and road freight in NorwaypublishedVersio
Accelerating Efficient Installation and Optimization of Battery Energy Storage System Operations Onboard Vessels
Get PDFEmerging large battery energy storage systems (BESSs) are key enablers in the electrification of the shipping sector. With huge government investments in BESSs, there are large gaps between the government supported BESS initiatives and actual BESS integration results on vessels. This study aims to close these gaps, allowing BESSs to become the preferred solution for ship owners without needing government support. Firstly, this industry-driven study reviews both the industrial approaches to achieve CO2 emission reductions and the fuel savings and emission reductions from 500 BESS installations on various vessels. Secondly, a 630 kWh BESS retrofitted onto a hybrid-electric vessel is used to quantitively identify the improvement requirements for installations and operations. The installations required many custom designs that were expensive and have high failure risks. The standardization of interfaces’ between BESSs and vessels is thus urgently required. The BESS was intended for spinning reserve capacity and peak shaving but in practice was under-used in terms of energy throughput (shallow cycles and low equivalent full cycles of 80 versus the design specification of 480 yearly). Thirdly, this study develops new, integrated BESS operational models by learning from large operational data, balancing BESS degradation against fuel saving and utilizing onshore/offshore green power supply/charging. The R&D of BESS is required to deal with the increasing safety requirements and further CO2 emission reductions. Finally, four BESS acceleration scenarios were established to facilitate the technical and operational transferability through utilizing digitalizationpublishedVersio
