Sökning: "fuel staging"

Hittade 4 avhandlingar innehållade orden fuel staging.

  1. 1. Physical and numerical modelling of flow pattern and combustion process in pulverized fuel fired boiler

    Författare :Jacek Baranski; KTH; []
    Nyckelord :combustion; air staging; fuel staging; boiler; computational fluid dynamics CFD ; pulverized fuel combustion; mathematical modelling; physical modelling; pollutants; numerical simulation;

    Sammanfattning : This licentiate thesis describes development of modellingtools, experimental physical modelling and numerical modellingto simulate real combustion processes for advanced industrialutility boiler before and after retrofit.The work presents extended study about formation,destruction and control of pollutants, especially NOx, whichoccur during combustion process. LÄS MER

  3. 2. Application of Laser-based Diagnostics to a Prototype Gas Turbine Burner at Selected Pressures

    Författare :Ronald Whiddon; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; OH; Laser Diagnostics; Elevated Pressure; Syngas; DLE; NOx; Combustion; Gas Turbine; PIV; PLIF; Pilot; SGT-750; Fysicumarkivet A:2014:Whiddon;

    Sammanfattning : The matured laser-diagnostic techniques of planar laser-induced fluorescence (PLIF) and particle image velocimetry (PIV) were applied to a prototype gas turbine burner operating on various fuels. The work was performed to provide verification of computational fluid dynamic (CFD) models of the combustion of atypical fuels in a gas turbine combustor. LÄS MER

  4. 3. Design of advanced industrial furnaces using numerical modeling method

    Författare :Wei Dong; KTH; []
    Nyckelord :;

    Sammanfattning : This doctoral thesis describes the fundamentals ofmathematical modeling for the industrial furnaces and boilersand presents the results from the numerical simulations of sometypical applications in advanced industrial furnaces andboilers. The main objective of this thesis work is to employcomputational fluid dynamics (CFD) technology as an effectivecomputer simulation tool to study and develop the newcombustion concepts, phenomena and processes in advancedindustrial furnaces and boilers. LÄS MER

  5. 4. On the importance of farmland as stopover habitat for migrating birds

    Författare :Juliana Dänhardt; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; conservation; bird migration; agriculture; stopover ecology; Golden plover; Pluvialis apricaria; landscape heterogeneity; organic farming; food availability; earthworms;

    Sammanfattning : Agricultural intensification has led to dramatic population declines among many farmland bird species. Negative effects of intensive farming in terms of decreased local habitat quality or structural simplification of farmland landscapes have reduced both reproductive outcome and winter survival of many species. LÄS MER