Sökning: "PHES"

Visar resultat 1 - 5 av 13 uppsatser innehållade ordet PHES.

  1. 1. An Evaluation Study of Leak Testing Technologies for Watertight Plate Heat Exchangers : Fast and sustainable leak testing technology for high energy efficiency products

    Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för matematik och naturvetenskap

    Författare :Fritjof Nilsson; Yanjun Peng; [2023]
    Nyckelord :Leak rate; Optimization; Pressure Decay; Vacuum Technology; Volume; Läckhastighet; Optimering; Tryckfall; Vakuum Teknologi; Volym;

    Sammanfattning : Background: One part of manufacturing a Plate Heat Exchanger (PHE) is to leak test them before delivery. Today, helium is used extensively in leak testing. How-ever, it is unsustainable to use helium in leak testing, because of its non-renewability and therefore becoming more and more expensive. Also, this technology is relatively complex. LÄS MER

  3. 2. Simulering och känslighetsanalys av ett pumpkraft-dagvattendammsystem : En utvärdering av potential för småskalig energilagring av solelsöverskott eller arbitrage

    M1-uppsats, Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Författare :Philip Abrams; [2020]
    Nyckelord :PHES; stormwater; stormwater pond; energy storage; renewable energy; PHES-stormwater pond; Pumpkraft; dagvattendamm; energi; energilager; PaT; solenergilager; pumpkraft-dagvattendamm;

    Sammanfattning : The global move to more sustainable and renewable energy sources causes increased fluctuations in theelectric market. That fact combined with the Swedish regulations on micro producers make high levels ofself-use critical and have increased the interest in energy storage of energy from intermittent sources. LÄS MER

  4. 3. Increasing Photovoltaic penetration rate on isolated grid using storage, overbuilding and curtailment: Case study of the Reunion Island

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

    Författare :Théo Chamarande; [2019]
    Nyckelord :;

    Sammanfattning : In the global context of GHG emissions reduction, insular isolated grids which are the most vulnerable systems in terms of fossil fuel dependency have to conduct their energy transition. Conventional units using fossil fuels are well adapted to those systems because they are dispatchable, reliable and flexible, so they can easily respond to grid requirements. LÄS MER

  5. 4. Utilizing Energy Storage Applied on Floating Wind Turbine Economics Using a Spot-Price Based Algorithm

    Magister-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Jim Johansson; [2017]
    Nyckelord :wind power; wind energy; energy storage; spot-price; CAES; ORES; PHES; BESS; floating wind turbine; semi-submerged; spar-type; tension-leg; intermittent wind;

    Sammanfattning : In this paper, a new algorithm for utilizing energy storage is proposed and applied on floating wind turbine economics. The proposed algorithm’s decision making on storing energy or selling electricity onto the grid is based on the electricity price, which makes it unique and different from similar algorithms. LÄS MER

  7. 5. Energy Storage Technology Comparison From a Swedish perspective

    Kandidat-uppsats, KTH/Energiteknik

    Författare :FELIX SÖDERSTRÖM; [2016]
    Nyckelord :;

    Sammanfattning : Due to increased usage of renewable energy sources a need to store energy, from times of low demand or high production to times of higher demand or lower production, have risen. This report is meant to serve as a comparison between different methods of energy storage from a Swedish point of view. LÄS MER