Sökning: "fuel savings"

Visar resultat 11 - 15 av 123 uppsatser innehållade orden fuel savings.

  1. 11. Developing an innovative unit of power supply to improve the sustainability of data centers : A techno economic analysis of replacing diesel generators with fuel cells as backup power generation for data centers

    Uppsats för yrkesexamina på grundnivå, Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

    Författare :Filip Agrell; Agit Ablay; [2022]
    Nyckelord :Fuel Cells; Hydrogen; UPS;

    Sammanfattning : As the amount of data centers continues to increase, their electricity consumption and emissions are being reviewed. The current backup solution is a conventional diesel generator running on fossil fuels. As part of climate goals to reduce carbon emissions, renewable energy sources like fuel cells running on hydrogen are being considered. LÄS MER

  3. 12. Klimatpåverkan och energianvändning vid tillämpning av bio-CCS och bio-CCU från biogasanläggningar

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Energy and Technology

    Författare :Emelie Wallman; [2022]
    Nyckelord :livscykelanalys; koldioxid; biometan; power to gas; biologisk metanisering; katalytisk metanisering; elektrolys;

    Sammanfattning : To mitigate the human-induced climate change, Sweden has adopted a climate policy framework that states a net-zero emissions of greenhouse gases by the year of 2045 and thereafter negative emissions. To achieve this goal extensive emission mitigation alongside supplementary measures are required. LÄS MER

  4. 13. Data Driven Energy Efficiency of Ships

    Master-uppsats, Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :Tarik Taspinar; [2022]
    Nyckelord :Local outlier factor; k-nearest neighbors; random forest; gradient boosting; support vector machines; ensemble learning; ship speed optimization; genetic algorithm; DEAP; HyperOpt;

    Sammanfattning : Decreasing the fuel consumption and thus greenhouse gas emissions of vessels has emerged as a critical topic for both ship operators and policy makers in recent years. The speed of vessels has long been recognized to have highest impact on fuel consumption. LÄS MER

  5. 14. Comparison of Achieved Fuel Savings on Ships by Different Wind Propulsion Systems Using a 3-DoF Resistance Model

    Master-uppsats, KTH/Marina system

    Författare :Severi Sarsila; [2022]
    Nyckelord :;

    Sammanfattning : This thesis aims to determine how different wind propulsion systems should be sized in order to achieve comparable fuel savings. The selected wind propulsion systems for the comparison are Dynarig, rigid wing sail and rotor sail. To answer this question, a performance prediction program based on a 3 Degree of Freedom resistance model was developed. LÄS MER

  7. 15. Phasing out peat from a co-fired 50 MWth circulating fluidized bed boiler : A theoretical sulfation potential study

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Axel Bergstrand; [2022]
    Nyckelord :Peat; corrosion; fuel mixture; CFB; circulating fluidized bed; S; alkali chlorides; Sulfur; additives; combustion; fuel design; alkali related corrosion;

    Sammanfattning : The chemical company Perstorp AB has a 50 MWth circulating fluidized bed to supply the production plant with process steam. The fuel mixture used shows a large variation with about 20 different fuel fractions that can be divided into the categories, residue wood chips, sludge, forest fuel, animal waste, industrial residues, and peat. LÄS MER