Avancerad sökning

Visar resultat 1 - 5 av 59 uppsatser som matchar ovanstående sökkriterier.

  1. 1. The influence of particle size distribution on bio-coal gasification rate as related to packed beds of particles

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Markus Bäckebo; [2020]
    Nyckelord :Bio-coal; Particle size distributions; Reaction rate; Gasification;

    Sammanfattning : This thesis is a part of a collaboration between Höganäs AB and Luleå University of Technology, aiming at replacing fossil process coal with bio-coal in their sponge iron process. The difference in gasification reactivity, i.e. LÄS MER

  2. 2. Prediction of Process Parameters for Powder Bed Fusion Using Electron Beam

    Master-uppsats, KTH/Materialvetenskap

    Författare :Teodor Haglund; [2020]
    Nyckelord :EBM; PBF-EB; Power Bed Fusion; Process Parameters; Parameters; Prediction;

    Sammanfattning : The Powder Bed Fusion using Electron Beam (PBF-EB) process is a highly complex additive manufacturing process. There are a very limited number of materials that have been used successfully, which limits the applications of the process, despite its well-documented advantages over conventional manufacturing. LÄS MER

  3. 3. Investigation of Cu and Zn interactions with ilmenite during waste incineration

    H-uppsats, Chalmers tekniska högskola / Institutionen för kemi och kemiteknik

    Författare :Elin Borgman; [2020]
    Nyckelord :FactSage; copper; zinc; major ash elements;

    Sammanfattning : In 2018, approximately 2.01 billion tons of waste was generated in the world. By 2050, this number is expected to increase drastically to 3.40 billion tons of waste annually as lower income countries develop and the world population increases (Kaz, Yao, BhadaTata, & Van-Woerden, 2018). LÄS MER

  4. 4. Process development for H13 tool steel powder in binder jet process

    M1-uppsats, Högskolan i Gävle/Maskinteknik

    Författare :George Persson; [2020]
    Nyckelord :Additive manufacturing; H13; toolsteel; binder jetting; processutveckling.;

    Sammanfattning : Additive manufacturing brings versatility and new degree of freedom for part design and manufacturing possibilities. Binder jetting is powder bed printing technique that does not require direct energy transfer rather binding powder metal particles through mechanical entanglement by use of the organic binder. LÄS MER

  5. 5. Reframing plastic through experiences at a beach clean-up : a frame analysis of experience-based learnings at a beach clean-up for creating knowledge, building responsibility and motivation to shape individuals’ pro-environmental plastic behaviours

    Master-uppsats, SLU/Dept. of Urban and Rural Development

    Författare :Jana Ricarda Busch; [2019]
    Nyckelord :plastic crisis; frames; behavioural change; pro-environmental behaviour; motivation; responsibility; beach clean-ups; citzen science project; experience-based learning; Spain;

    Sammanfattning : The plastic crisis is one of the major environmental challenges of our times. Plastic pollution impacts our health, water, tourism, fishing and overall ecosystem. Plastic debris has accumulated in natural habitats from the poles to the equator. LÄS MER