Sökning: "Fluidized bed boiler"

Visar resultat 1 - 5 av 15 uppsatser innehållade orden Fluidized bed boiler.

  1. 1. 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

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

    H-uppsats,

    Författare :Elin Borgman; [2020-06-08]
    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. 3. Experimental Study to Reduce CO Emissions in Skellefteå Kraft's 16 MW Bubbling Fluidized Bed Boiler

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

    Författare :William Johansson; [2019]
    Nyckelord :;

    Sammanfattning : Skellefteå Kraft has had high CO emissions problems in a bubbling fluidized bed (BFB) boiler in Malå.Statistical emissions data from 2013 to 2019 shows plant average emissions of 1230 ppm. Thisexceeds the recommended 440 ppm (6 % O2) that Naturvårdsverket proposes (Naturvårdsverket,2005). LÄS MER

  5. 4. Effects of Different Fuels on Combustion Boiler Processes : The analysis of alternative fuel mixtures

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

    Författare :Malin Stauber Alfredsson; [2018]
    Nyckelord :Fluidized bed boiler; Sintering; High Temperature Corrosion; Used-wood Fired Boilers; Cl-induced Corrosion; Combined Heating Plant;

    Sammanfattning : The objective of this study is to investigate the eect of dierent fuels on two uidized bed boiler systemsat the energy company Soderenergi's site in Igelsta, called IKV and IGV P3. Today, recovered wastewood (RWW) is the major fuel share fed into the boilers. However, with an insecure fuel supply in thefuture, other fuel types must be considered. LÄS MER

  7. 5. Värmeöverföring mellan två zoner i en bubblande fluidiserad bädd

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Christian Stigsson; [2018]
    Nyckelord :Heat transfer; fluidized beds; multi-staging; Eulerian-Eulerian two-fluid; Technology and Engineering;

    Sammanfattning : In this Master's thesis, the heat transfer between two zones in a bubbling fluidized bed and the resultant temperature field were examined using a laminar Eulerian-Eulerian two-fluid model in computational fluid dynamics. The purpose was to estimate the thermal potential to multi-stage a combined heat and power boiler by integration therein of a communicating gasification reactor, which utilizes heat from the combustion, and to analyze how different construction parameters influence the homogeneity of the gas temperature field. LÄS MER