Browsing NTNU Open by Title
Now showing items 44576-44595 of 100803
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Hydropower Providing Flexibility for a Renewable Energy System: Three European Energy Scenarios
(Report, 2018)The Horizon 2020 Project ‘Increasing the value of Hydropower through increased Flexibility (HydroFlex)’ aims towards scientific and technological breakthroughs to enable hydropower to operate with very high flexibility in ... -
Hydropower reservoir management using multi-factor price model and correlation between price and local inflow
(Journal article, 2018)Hydropower producers with reservoir capacity have a special challenge when it comes to weighing the short-term profit from selling power in the day-ahead spot market against waiting for better electricity prices. In this ... -
Hydropower Resource Curse?
(Doctoral thesis at NTNU;2015:9, Doctoral thesis, 2015)The thesis empirically investigates how revenues from hydropower resources affect local governments in Norway, using methods and approaches from recent innovation in applied econometrics. It emphasizes the importance of ... -
Hydropower Scheduling Analysis Using Statistics and Stochastic Programming
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:229, Doctoral thesis, 2014)Vannkraftprodusenter med magasin har muligheten til å flytte produksjon til timer hvor prisen er gunstig. Dette øker produsentenes inntekter og bidrar til å møte samfunnsbehovet for elektrisitet. Å flytte produksjonen til ... -
Hydropower Scheduling with State-Dependent Discharge Constraints: An SDDP Approach
(Peer reviewed; Journal article, 2022)Environmental constraints in hydropower systems serve to ensure sustainable use of water resources. Through accurate treatment in hydropower scheduling, one seeks to respect such constraints in the planning phase while ... -
Hydropower‐driven thermal changes, biological responses and mitigating measures in northern river systems
(Peer reviewed; Journal article, 2021)Water temperatures control life histories and diversity of aquatic species. Hydropower regulation, particularly in high head systems, alters natural water temperature regimes, which may have profound and long-term impacts ... -
HydroSafe: Emma's investment issues
(Chapter, 2022) -
Hydrostatic Stability and Hydrodynamics of a Floating Wind Turbine Platform Integrated with Oscillating Water Columns: A Design Study
(Peer reviewed; Journal article, 2024)One of the challenges in the installation of Floating Wind Turbines (FWTs) is the occurrence of undesired resonant motions under environmental conditions, which adversely impact their lifespan, maintenance cost, components ... -
HydroStator : hovedfunn og resultater i KPN-prosjektet HydroStator
(SINTEF Rapport;, Research report, 2022)Modeller som beskriver temperatur- og frekvensavhengighet til elektriske delutladninger er utviklet og viser at tilstandskontroll med den mer praktiske VLF-metoden som benytter 0,1 Hz høyspenning er representativ for 50 ... -
Hydrotalcite Based Ni-Co Bi-metallic Catalysts for Steam Reforming of Methane
(Master thesis, 2016)Hydrotalcites or layered-double-hydroxides (LDH) are a class of nanostructured anionic clays. These compounds exhibit high surface areas, high thermal stability and uniform distribution of active metals. Different attempts ... -
Hydroterapi sammenlignet med trening på tredemølle med kroppsvektavlastning som intervensjon for å gjenvinne gangfunksjon for hjerneslagspasienter i subakutt fase.
(Bachelor thesis, 2021)Hensikt: Undersøke hvilken av de to intervensjonene hydroterapi eller trening på tredemølle med kroppsvektavlastning som gir best effekt for å gjenvinne gangfunksjon i den subakutte fasen hos hjerneslagspasienter. Metode: ... -
Hydrothermal carbonization of olive wastes to produce renewable, binder-free pellets for use as metallurgical reducing agents
(Journal article, 2020)Torrefaction or hydrothermal carbonization processes were compared for conversion of olive pulp into metallurgical reducing agent. The dependence of yield, CO2 reactivity, and mechanical properties to reaction time and ... -
Hydrothermal Gasification of Biogas Digestate: a Parametric Study Using a Matlab-based Code
(Peer reviewed; Journal article, 2023)In this work, effect of process parameters on hydrothermal gasification (HTG) of biogas digestate are thermodynamically investigated using a Matlab-based code, which is capable of modelling the effects of the feedstock’s ... -
Hydrothermal Gasification of Biogas Digestate: a Thermodynamic Study on Effects of Process Parameters Using Aspen Plus
(Peer reviewed; Journal article, 2023) -
Hydrothermal scheduling in the continuous-time framework
(Peer reviewed; Journal article, 2020)Continuous-time optimization models have successfully been used to capture the impact of ramping limitations in power systems. In this paper, the continuous-time framework is adapted to model flexible hydropower resources ... -
Hydrothermal syntheis and characterization of BaTiO3 nanoparticles
(Master thesis, 2018)This thesis investigates the size dependent dipole disorder in ferroelectric materials, which leads to a loss of macroscopic ferroelectricity, and the role of the depolarization field on this disorder. Structural ... -
Hydrothermal Synthesis of Alkali Niobates
(Master thesis, 2021)Reaksjonsforholdene under hydrotermal syntese av kalium- og natriumniobater har blitt undersøkt med hensikt å forstå effekten av reaksjonsforholdene på kinetikken, faseformasjonen, morfologien og gitteparametrene. Kalium ... -
Hydrothermal synthesis of hexagonal YMnO3 and YbMnO3 below 250 °C
(Peer reviewed; Journal article, 2021)The hydrothermal synthesis of hexagonal YMnO3 and YbMnO3 are reported using high KOH mineraliser concentrations (>10 M) and low temperatures (<240 °C). The relation between reaction parameters and resulting phase purity ... -
Hydrothermal Synthesis of LaFeO3
(Master thesis, 2011)This work explores the hydrothermal synthesis of LaFeO3 (LFO) nanorods with a high aspect ratio. Synthesis of rod shaped LFO is a stepping stone to the synthesis of strontium doped LFO (LSF) nanorods with high aspect ratio. ... -
Hydrothermal synthesis of materials for intermediate band solar cells
(Master thesis, 2013)Solar energy is an abundant energy source that may provide an environmentallyfriendly alternative to fossil fuels. The utilization of the solar energy have so farbeen limited by various energy losses in the photovoltaic ...