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Visar resultat 1 - 5 av 6 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Hydrogen-induced Fluidized Bed Reduction : Evaluation of the Effect of Pressure, Particle Size, Gas Mixture and Temperature on the Minimum Fluidization Velocity of Iron Ore Fines

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Joakim Käck; Sebastian Uhlin; [2023]
    Nyckelord :;

    Sammanfattning : Steel is used worldwide and there are demands for an increase in current production. The problem emerges because steel and iron-making industries release vast amounts of CO2 and need to be more environmentally sustainable. LÄS MER

  3. 2. Torkning av gjutsand i en fluidiseradbädd. : Energioptimering, flödeshastighet, gastemperatur och klimateffekter.

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Linnéa Bogren; [2022]
    Nyckelord :energioptimering; flödeshastighet; gastemperatur; klimateffekter; fluidiserad bädd; gjutsand;

    Sammanfattning : En studie har genomförts för att undersöka möjligheterna att torka gjutsand i en fluidiserad bädd. Sand är ett ändligt material och i gjutprocessen används tonvis gjutsand årligen. Volvo Powertrain Production har ett gjuteri i Skövde där de undersöker om de kan återanvända sin gjutsand. LÄS MER

  4. 3. Experimental optimization and analysis of drying in ifrasound dryer

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Shreeja-Sivaranjani Natarajan; [2022]
    Nyckelord :Infasound technology; Wheat drying and storage; Drying method; Simulation of drying; Infasound-teknik; Torkning och lagring av vete; Torkningsmetod; Simulering av torkning;

    Sammanfattning : In the agricultural industries drying plays a major role as its very important for grain storage. The selection of the dryer and the method used for drying should be chosen wisely considering the product to be dried with its other factors. LÄS MER

  5. 4. Biomimetically improved materials comprising microfibrillated cellulose

    Master-uppsats, Umeå universitet/Kemiska institutionen

    Författare :Cornelia Byström; [2021]
    Nyckelord :;

    Sammanfattning : Microfibrillated cellulose (MFC) is a renewable, cellulosic material mainly producedfrom wood fibers, which are found in the secondary cell walls of plant cells. With theincreased demand for renewable biopolymer films in packaging, MFC has emerged asa potential alternative to non-renewable polymer films. LÄS MER

  7. 5. Groundwater denitrification by fluidized bioelectrochemical systems

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

    Författare :Lena Bonin; [2020]
    Nyckelord :Bioelectrochemistry; fluidized bed reactor; bioremediation; denitrification; groundwater; reduced graphene oxide;

    Sammanfattning : Groundwater (GW) accounting for most of the freshwater available around the World, finding sustainable techniques to depollute it is of crucial importance for safe drinking water supply. The extensive use of fertilizers in the agriculture, as well as other anthropogenic activities, are contributing to the excessive nitrate levels in some aquifers. LÄS MER