Sökning: "Marine Fuels"

Visar resultat 16 - 20 av 33 uppsatser innehållade orden Marine Fuels.

  1. 16. SOLAR ROOF - Roof potential investigation for installing PV system

    Master-uppsats, Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Författare :Forough Hosseini; Saba Salehi; [2020]
    Nyckelord :Solar roof; solar potential; PV system; Ventilation system; Photovoltaics; million-program buildings; Technology and Engineering;

    Sammanfattning : By increasing the amount of CO2 emissions to the atmosphere because of using fossil fuel and the limitation of non-renewable energy sources, solar photovoltaics technology has been growing steadily and is thought to play an important role in the realm of future energies. The objective of this thesis is to investigate the potential of the rooftops for installing PV system on a small scale of 30 multifamily houses in Gothenburg divided into four categories of age, location, roof type, and ventilation system. LÄS MER

  3. 17. Feasibility Study of the Decarbonisation and Electrification of a Commuter Ferry in Stockholm city

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Matilda Helgesson; [2020]
    Nyckelord :Fuel cells; Fuel cell hybrid; HVO; Li-ion battery; techno-economic analysis; Bränslecell; HVO; bränslecellshybrid; Li-jon batteri; teknoekonomisk analys;

    Sammanfattning : There is a need for alternative marine fuels and propulsion techniques in order to reduce the environmental and climate impacts of the transport sector, and meet the new Swedish climate targets of net zero emissions by 2045. There are several projects and studies on full electric ferries, while the option of hydrogen fuel cell-battery hybrids are not as well explored. LÄS MER

  4. 18. Life cycle assessment of DHA produced by microalgae using food waste : Assessing global warming, fossil energy use and effects on biodiversity

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Louise Bartek; [2020]
    Nyckelord :Life cycle assessment LCA ; docosahexaenoic acid DHA ; biodiversity loss; volatile fatty acids VFA ; global warming; sustainable development; Livscykelanalys LCA ; dokosahexaensyra DHA ; biodiversitet; flyktiga fettsyror VFA ; global uppvärmning; hållbar utveckling;

    Sammanfattning : Biodiversity is a key component for life on Earth since it contributes to clean water, fresh air and food security. Today, fatty fish farmed in aquaculture is the main Omega 3 source consumed by humans, including the essential fatty acid docosahexaenoic acid (DHA). DHA origin from plants and accumulate in fish via the marine food web. LÄS MER

  5. 19. The commercial effects of IMO’s regulation of the global sulphur cap in 2020 - A study on the procurement of deep-sea Ro-Ro at Volvo Cars

    Master-uppsats, Göteborgs universitet/Graduate School

    Författare :Erik Jansson; Jesper Saarinen; [2019-07-09]
    Nyckelord :Deep-Sea Ro-Ro Shipping; VCC; Procurement; IMO’s Global Sulphur Content Limit; Sulphur Regulations; Marine Fuels; Bunker Adjustment Factor;

    Sammanfattning : The International Maritime Organization (IMO) has announced a new global sulphur content limit for fuels burnt on ships sailing in global waters. The implementation date for this regulation is on January the 1st, 2020 and entail a maximum sulphur content of 0.5%, in contrast to the current sulphur content limit in global waters of 3.5%. LÄS MER

  7. 20. Riskanalys av brand i avgassytem som avser dieselmotorer som opererar med låg belastning på fartyg

    M1-uppsats, Linnéuniversitetet/Sjöfartshögskolan (SJÖ)

    Författare :Martin Bergkvist; [2019]
    Nyckelord :Exhaust gas boilers; economizer; soot fire; soot deposits; residual fuel oil; Avgaspanna; ekonomiser; brand; sotbeläggningar; och restoljor.;

    Sammanfattning : Med skenade bunkerkostnader och överdimensionerade motorinstallationer har allt fler handelsfartyg börjat operera under benämningen slow steaming, vilket innebär att sotbränderna har ökat i avgaspannor/ekonomiser och i en del extrema fall har branden övergått till en vätgasbrand. Arbetet utreder främst dieselmotorer som använder restoljor som bränsle och opererar med en låg motorbelastning. LÄS MER