Sökning: "superkritisk"

Visar resultat 1 - 5 av 9 uppsatser innehållade ordet superkritisk.

  1. 1. Negative Emission from Electric Arc Furnace using a Combination of Carbon capture and Bio-coal

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

    Författare :Abhijith Namboodiri Kapothanillath; [2023]
    Nyckelord :EAF; Off-gas handling; CCS; Calcium Looping CaL ; Post-combustion; Waste heat recovery; Bio-coal; Negative emissions; Techno-economic analysis; EAF; Avgasrening; CCS; Calcium Looping CaL ; Efterförbränning; Återvinning av spillvärme; Biokol; Negativa utsläpp; Teknisk-ekonomisk analys;

    Sammanfattning : Steel is one of the most essential metals in the world, and it plays a vital role in various industries. The growing demand for steel has resulted in increased CO2 emissions, with the steel industry contributing to approximately 7% of global emissions of carbon dioxide. LÄS MER

  3. 2. Material analysis for a rotating inlet valve : Sliding contact in an oil-free super-critical steam environment

    Uppsats för yrkesexamina på avancerad nivå, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Johan Samuelsson; [2022]
    Nyckelord :Mechanical carbon; graphite; carbon graphite; zirconia; steam engine; steam; tribology; friction; wear; stellite; nitronic 60; antimony; carbon; Ni-resist cast iron; waste heat recovery; rotating inlet valve; valve; Mekaniskt kol; gafit; ångmotor; ånga; tribologi; friktion; nötning; gjutjärn; roterande inloppsventil; ventil;

    Sammanfattning : In this thesis, the aim is to study possible tribo-materials for a rotating inlet valve and to find a suitable material combination for the contact. The valve is part of a modern oil-free and high temperature steam engine. Systematic material selection together with tribological tests and wear analyses are performed. LÄS MER

  4. 3. Developing complementary supercritical fluid chromatographic methods for a high throughput purification process

    Master-uppsats, Karlstads universitet

    Författare :Alma Söderström; [2022]
    Nyckelord :Supercritical Fluid Chromatography; Pharmaceutical Industry; Column screening; Green chemistry; Superkritisk vätskekromotografi; Läkemedelsindustri; Kolonn set; Grön kemi;

    Sammanfattning : Supercritical fluid chromatography (SFC) is an expanding chromatographic technique that is part of the evolving field of green chemistry due to its short run times and use of non-toxic solvents in combination with recycled CO2. The use of a suitable column is essential for separation science in general and there is a wide variety of SFC compatible columns available on the market. LÄS MER

  5. 4. Design and Optimization of a Sodium-Molten Salt Heat Exchanger for Concentrating Solar Power applications

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

    Författare :Salvatore Guccione; [2020]
    Nyckelord :Concentrating solar power CSP ; liquid sodium; advanced molten salt; chloride salt; heat exchanger HX ; shell and tube; CSP Gen3 Liquid-Phase Pathway; Modelica; Termisk solkraft; CSP; flytande natrium; avancerat smält salt; kloridsalt; värmeväxlare HX ; skal och rör; CSP Gen3 Liquid-Phase Pathway; Modelica;

    Sammanfattning : Concentrating Solar Power (CSP) is one of the most promising renewable energybased electricity generation technologies to deal with the increasing demand of power consumption and environmental sustainability. With the aim of achieving the 2020 SunShot cost target for CSP of 60 USD/MWh, the United States Department of Energy presented, in May 2018, the Gen3 CSP initiative. LÄS MER

  7. 5. Modeling least cost electricity system scenarios for Bangladesh using OSeMOSYS

    Kandidat-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :John Mogren Olsson; [2020]
    Nyckelord :Bangladesh; Energy System Model; Scenarios; OSeMOSYS; Carbon Dioxide Emissions; Bangladesh; Energisystem model; Scenarion; OSeMOSYS; Koldioxidutsläpp;

    Sammanfattning : In order to achieve sustainable development, countries like Bangladesh need to develop their electricity systems to guarantee their citizens access to modern energy services and achieve economic development, while not compromising the global climate. The purpose of this study is to examine what mix of technologies leads to the least costs for the electricity system under different scenario assumptions. LÄS MER