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Showing result 1 - 5 of 42 essays matching the above criteria.

  1. 1. Study on feasibility of small-scale pumped hydro storage- A case study in Sweden

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Prashant Niroula; [2023]
    Keywords : energy storage; pumped hydropower; electricity market; investment; new technologies; feasibility; Technology and Engineering;

    Abstract : The European union has been aggressively pushing forward with policies favoring renewable sources of energy. As a result, the share of intermittent renewables in the European power grid is rising and is expected to grow even more in the coming decade. The Swedish energy agency also forecast huge growth in wind power. READ MORE

  3. 2. Multivariate Time series Forecasting with applied Machine Learning on Electrical signals from High-Voltage Direct Current Equipment - Valve Cooling System

    University essay from Uppsala universitet/Avdelningen för systemteknik

    Author : Carolina Nilsson; [2022]
    Keywords : Machine Learning; LSTM; XGBoost; Forecast; HVDC; Valve Cooling System;

    Abstract : In a sustainable society, utilizing intermittent renewable power plants is an important building block for achieving green power production. However, the power production from these sources, e.g. READ MORE

  4. 3. Implementing spatial variance in the rate of photolytic breakdown of NO2 in urban street canyons

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Fabian Friberg; [2022]
    Keywords : cfd; computational fluid dynamics; NOx; street canyon; NO2; NO; O3; photolysis; OpenFOAM; Physics and Astronomy;

    Abstract : In this study a module for calculating the solar exposure of individual fluid cells was developed to more accurately represent the effect of photolysis on the pollutant dispersion in an urban street canyon. The module was tested and validated on 12 different cases, each with a different geographical location, time of year and/or time of day. READ MORE

  5. 4. Space Rider System: GNC and System Model Improvements

    University essay from KTH/Rymdteknik

    Author : Simon Vial; [2022]
    Keywords : Space Rider System; Disturbance Modelling; Maneuver Optimization; Space Rider System; Modellering av Störningar; Manöveroptimering;

    Abstract : As part of a continuous trend of the space sector for obtaining higher performance space science and Earth observations, there is an increasing demand for higher requirements in pointing accuracy and disturbance prediction. The Space Rider System (SRS) is a Low Earth Orbit (LEO) reusable vehicle that aims at answering to that demand. READ MORE

  6. 5. Radio Frequency Energy Harvesting In Embankment Dams

    University essay from Uppsala universitet/Datorteknik

    Author : William Järvström; Axel Lundberg; [2022]
    Keywords : Energy Harvesting; Embankment Dams; Radio Frequency; Wireless Energy Transfer;

    Abstract : Energy harvesting can be used to consume the potential power of the surrounding environment. This harvesting can be done in different ways, some common energy harvesting modalities are vibrations, heat differences, solar power, and RF energy. READ MORE