Sökning: "Fluidized bed boilers"

Visar resultat 16 - 20 av 43 avhandlingar innehållade orden Fluidized bed boilers.

  1. 16. Choice of bed material: a critical parameter in the optimization of dual fluidized bed systems

    Författare :Jelena Maric; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; GoBiGas; biomass ash; ilmenite; feldspar; biofuel; alkali salts; Dual Fluidized Bed; bed material; Chemical Looping Reforming;

    Sammanfattning : Dual Fluidized Bed (DFB) gasification is a promising alternative method for the production of biofuels. In the DFB gasification process, the bed material, which is a crucial component of the process, has two possible roles: 1) to provide the heat needed for the gasification reaction; and 2) if it has catalytic properties, to improve the quality of the produced gas. LÄS MER

  3. 17. Operation control of circulating fluidized bed boilers

    Författare :Martin Gierse; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : .... LÄS MER

  4. 18. Reduction of N₂O emissions from fluidized bed boilers through gas injection

    Författare :Lennart Gustavsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gas injection; N2< sub>O; N2< sub>O reduction; fliudized bed boilers; emissions; nitrous oxide;

    Sammanfattning : .... LÄS MER

  5. 19. Simulation of a circulating fluidized bed boiler

    Författare :Eric Peirano; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; combustion; emissions; simulation; heat transfer; circulation fluidized bed boilers CFBB ; hydrodynamics; mathematical modelling;

    Sammanfattning : .... LÄS MER

  7. 20. Fluid Dynamics of the Transport Zone of Circulating Fluidized Beds - with Application to Boilers

    Författare :Wennan Zhang; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fluid dynamics; particle flux probe; momentum probe; circulating fluidized bed boilers; circulating fluidized beds; particle flow pattern; particle concentration probe; spectrum analysis;

    Sammanfattning : The particle suspension flow structure in circulating fluidized beds (CFB) was studied with emphasis on the layer of downflowing particles at the wall. The main experiments were carried out in the furnace of the 12 MWth CFB boiler of 1.7x1.7 m cross-section, and in a two-dimensional CFB cold bed of 0. LÄS MER