Endring av kjøremønster i norske vannkraftverk
- Forfattere
- Thomas Michael Welte
- Eivind Solvang
- År
- 2011
- Type
- Rapport
Accurate estimation of catch is essential for sustainable fisheries. It ensures precise catch reporting, provides a better basis for stock assessment, and helps prevent overfishing. With recent advances in deep learning, this could be solved using computer vision, however, collecting and annotating...
Density functional theory and micromechanical methods were used to investigate the adsorption and decomposition of formaldehyde on the surfaces of pure and Mn-doped Fe3O4 catalysts. The O2 site was determined as the optimal adsorption site, and single doping with Mn promotes the generation of oxygen...
This study investigates AC electrical aging induced by partial discharge (PD) in fluoropolymer cable insulation materials, namely fluorinated ethylene propylene (FEP) and perfluoroalkoxy (PFA), with the cross-linked polyethylene (XLPE) serving as the reference material. Utilizing a specialized...
The presence of power electronics converters has become more and more dominant in power systems and this is posing stricter requirements for their controls in terms of stability and performance. The class of Model Predictive Controls (MPC) is particularly well suited for power electronics converters...
The need of efficient electric transmission systems, the rise of renewable energy production, and the development of battery storage systems have driven the adoption of Modular Multilevel Converters (MMC), which offer better performance than conventional converters. However, the diagnosis of...
Coal properties are important factors affecting the coal pyrolysis heat absorption. In this work, thermogravimetric-differential scanning calorimetry (TG-DSC) method was used to measure the pyrolysis heat absorption of 20 coal samples with different degrees of coalification, including anthracites...
Full electric vessels can benefit from hybrid energy storage systems (HESS) that combine two storage technologies of different characteristics in terms of power and energy density. The optimal design of a HESS for a vessel is generally a rather complex multivariable optimization with several degrees...