Sökning: "oil discharge"

Visar resultat 1 - 5 av 15 uppsatser innehållade orden oil discharge.

  1. 1. ANALYZING THE IMPACT OF PHOTOVOLTAIC AND BATTERIE SYSTEMS ON THE LIFE OF A DISTRIBUTION TRANSFORMER

    Master-uppsats, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Mohamed Mohamed Ali; [2021]
    Nyckelord :Distribution Transformer; PV Penetration; BESS; Self-Consumption; Peak Shaving; HSP; ONAN; Thermal Model; RPF; Paper Insulation; Oil Immersed Transformers.;

    Sammanfattning : This degree project presents a study case in Eskilstuna-Sweden, regarding the effect of the photovoltaic (PV) systems with battery energy storage system (BESS) on a power distribution transformer, and how they could change the transformer lifespan. For that, an extensive literature review has been conducted, and two MATLAB models were used to simulate the system. LÄS MER

  3. 2. Rock cavern as thermal energy storage

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Energivetenskap

    Författare :Simon Berglund; [2020]
    Nyckelord :Rock cavern; Waste heat; District heating; Intermittent operation; Sustainability; Heat storage; Carbon dioxide reduction; Bergrum; Spillvärme; Fjärrvärme; Intermittent drift; Hållbarhet; Värmelagring; Koldioxid reducering;

    Sammanfattning : In the fall of 2019, a comprehensive idea study was conducted on heat storage in two rock caverns located at Näsudden in Skelleftehamn and was part of the project course "Energiteknik, huvudkurs" at Luleå University of Technology. This idea study investigated the conditions of using waste heat from Boliden AB:s copper smeltery (Rönnskär) and storing this waste heat in two rock caverns and use them as seasonal thermal storage tanks, with the purpose of using the heat in the nearby district heating network, thus replacing some of the oil burned at Rönnskär. LÄS MER

  4. 3. Kan cirkulär ekonomi bidra tillenergiomställningen vid uppvärmning avsmåhus?

    Kandidat-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Linnea Stenberg; Alexandra Jerresand; [2018]
    Nyckelord :;

    Sammanfattning : Samhället har ett ökande energibehov och en energiomställning från de ändliga till förnybara energikällorna är ett måste. Detta på grund av klimatpåverkan då människan, sedan den industriella revolutionen, använt sig av den linjära ekonomiska metoden. LÄS MER

  5. 4. Who’s in charge? Electro-responsive QCM Studies of Ionic Liquid as an Additive in Lubricant Oils

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Bergendal Erik; [2016]
    Nyckelord :Quartz crystal microbalance; QCM; EQCM; Ionic Liquid; Lubricant additive;

    Sammanfattning : Electrochemical quartz crystal microbalance has been employed to investigate electro-responsiveness of an ionic liquid as an additive in lubricant oils on a gold surface. Polarisation of the surface reveals changes in frequency where an increase in magnitude amplified the observed response, corresponding to a controllable alternation of the ionic liquid configuration on the surface as a function of applied potential. LÄS MER

  7. 5. Numerical Simulation of Compressible Multicomponent Flows

    M1-uppsats, KTH/Mekanik

    Författare :Anthony Bourbi; [2015]
    Nyckelord :;

    Sammanfattning : France is a country where the sector of energy has a big importance. Seven out of the fourteen companies of the CAC40 (a french stock market index of the 40 biggest companies) are strongly involved in the energy sector: Total, GDF Suez, EDF, Legrand, Schneider Electric, Alstom, and Technip. This industry was also responsible for 1. LÄS MER