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Visar resultat 1 - 5 av 72 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Application of Fourier Transforms to time-resolved ambient pressure spectroscopy operando studies of CO oxidation over Pt(111)

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

    Författare :Grigore-Leon Ratiu; [2024]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : The study of heterogeneous catalysis has important implications in increasing the efficiency of industrial processes and in reducing the emissions of greenhouse gases from sources such as automobiles. A reaction with high industrial relevance is the oxidation of CO on noble metal catalysts. LÄS MER

  3. 2. Permanent Fire Load of the Building Envelope

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Gizelle Danine Pondevida Jamero; [2023]
    Nyckelord :Permanent fire load; temporary fire load; fire load; building envelope; insulation; building content; upholstered furniture; heat of combustion; MCC; bomb calorimeter; cone calorimeter; room corner test.; Technology and Engineering;

    Sammanfattning : Fire load, the total thermal energy released by the combustion of a material, is an essential part of determining a building’s fire performance and the associated fire protection strategies. Elements in a structure are typically categorized into two types of fire loads: permanent and temporary. LÄS MER

  4. 3. Testing aerosol vertical profiling methods with portable instruments on unmanned and manned aircraft

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Ellen Grace Soroka; [2023]
    Nyckelord :Physical Geography; Ecosystem Analysis; Aerosols; Vertical Profile; Black Carbon; PM2.5; Nanoparticles; UAV; Drone; Master degree thesis; 30 credits in Atmospheric Science Biogeochemical Cycles; Earth and Environmental Sciences;

    Sammanfattning : This thesis employed several portable sensors on board an unmanned aerial vehicle (UAV) and manned aircraft in order to test new methods of measuring vertical profiles of aerosol particles and contribute to knowledge of aerosol distributions in the atmosphere. More data in this area is required to improve atmospheric modelling and future climate scenarios. LÄS MER

  5. 4. KLIMATNEUTRAL- OCH ENERGISMART BETONGTILLVERKNING : En energiteknisk State of the art-studie och analys

    Master-uppsats, Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

    Författare :Abel Tewelde; [2022]
    Nyckelord :Sustainability; energy systems; recycling techniques; environmental problems; winter concrete production; life cycle and environmental product declarations; concrete factory; heating systems; calcined clay; and bio boiler; Hållbarhet; energisystem; återvinningstekniker; miljöproblem; vintertillverkning; livscykel- och miljövarudeklarationer; betongfabriker; uppvärmningssystem; kalcinerad lera och biopannor;

    Sammanfattning : In abstract, it can be emphasized that the concrete industry influences and is significant based on the sustainability dimensions. The concrete industry is also an industry where actors with different backgrounds interact to achieve the different climate goals. LÄS MER

  7. 5. Electrified Reforming of Biogas to Hydrogen for Industrial Furnaces with Negative Carbon Emissions: A Feasibility Study

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Moa Bertling; Agnes Milstig; [2022]
    Nyckelord :;

    Sammanfattning : The steel industry emits large amounts of carbon dioxide, the main emissions are produced inthe process of heating up steel in industrial furnaces of electric arc furnaces (EAF). The purposeof this project was to propose and evaluate a process of reforming biogas to hydrogen to use asfuel for industrial furnaces and result in carbon neutral or carbon negative emissions. LÄS MER