Essays about: "Vattenfall AB"

Showing result 1 - 5 of 47 essays containing the words Vattenfall AB.

  1. 1. The Paradigm Shift for Substations Technology within Wind Power Applications from Onshore to Floating

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Ahmad Talaat Hifzy; [2023]
    Keywords : Floating; offshore; substation; transformer; GIS; equipment; high-voltage; fatigue; Flytande; havsbaserad; station; transformator; GIS; utrustning; högspänning; utmattning;

    Abstract : Floating wind turbines are attracting more attention as more than three-quarters of the total offshore technical potential is located in deep water, leading to a growing trend in floating wind farm projects. Consequently, it becomes necessary to develop Floating Offshore Substation (FOSS) to step up voltage and efficiently transmit power to the shore with minimal losses. READ MORE

  3. 2. High spatial resolution study of local corrosion effects on BWR-fuel cladding : Using a combined method of GEANT4 and lwrChem

    University essay from Uppsala universitet/Tillämpad kärnfysik

    Author : Martin Nilsson Lind; [2023]
    Keywords : fission; zircaloy; corrosion; radiolysis; radiation; BWR; Monte Carlo; GEANT4; lwrChem;

    Abstract : The core of a BWR constitutes a highly complex radiational and chemical environment. Nuclear fission is utilized to generate power and as a consequence, large quantities of ionizing radiation are produced. Gamma and beta-particles along with neutrons have the sufficient ranges to escape the fuel rods and deposit energy in the reactor coolant. READ MORE

  4. 3. Implementation of battery energy storage systems in the Swedish electrical infrastructure

    University essay from KTH/Kemiteknik

    Author : Gustav Arnberg; [2022]
    Keywords : Battery energy storage systems; BESS; Li-ion batteries; Frequency regulation; Business case; Implementation of battery energy storage systems; Swedish electrical infrastructure; BESS; Li-jon batterier; Frekvensreglering; Affärsfall; Implementering av batterilagringssystem; Svensk elinfrastruktur;

    Abstract : Detta examensarbete utreder den tekniska och ekonomiska passbarheten av batterilagringssystem (BESS) inom den svenska el infrastrukturen. Syftet är att konstruera tre olika affärsfall för att representera den tekniska och den ekonomiska passbarheten av BESS inom den svenska el infrastrukturen, specifikt med uppkoppling mot distributionsnätverket på den regionala nivån, 6 kilovolt till 132 kilovolt (kV). READ MORE

  5. 4. Spillway flow behaviours with and without aeration

    University essay from KTH/Teknisk mekanik

    Author : Noel Köhler; [2022]
    Keywords : Hydropower; Aeration; Computional Fluid Dynamics CFD ; Spillway; Subpressure; Black Water; Spreading;

    Abstract : Cavitation has been known for a long time to cause damages in spillways athydropower plants, aerators are therefore often implemented to prevent this.The majority of the hydropower plants in Sweden are installed in the northernpart of the country. READ MORE

  6. 5. Go with the flow - can environmental flows save us? : A study of the flow patterns in Bredforsen and possibilities for the future

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Hilda Brynjarsdotter; [2022]
    Keywords : Riparian zone; Riparian vegetation; Riparian vegetation zones; Regulated rivers; Floodings; hydropower;

    Abstract : Freshwater systems have, during human history, endured large-scale impacts. According to the water framework directive, measures must be developed to create a better environment for species in, and connected to, freshwater systems. Hydropower plants has caused loss of natural disturbance (e.g. READ MORE