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    PM From the Combustion of heavy fuel oils

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    1-s2.0-S0360544218305723-main.pdf
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    Description:
    Accepted Manuscript
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    Type
    Article
    Authors
    Elbaz, Ayman M.
    khateeb, A.A.
    Roberts, William L. cc
    KAUST Department
    Clean Combustion Research Center
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    high-pressure combustion (HPC) Research Group
    Date
    2018-03-30
    Online Publication Date
    2018-03-30
    Print Publication Date
    2018-06
    Permanent link to this record
    http://hdl.handle.net/10754/627533
    
    Metadata
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    Abstract
    This work presents an experimental study investigating the formation and oxidation of particulate matter from the combustion of heavy fuel oil, HFO, droplets. The study includes results from both a falling droplet in a drop tube furnace and a suspended droplet in a heated convective flow. The falling droplets in a heated coflow air with variable temperature path and velocity were combusted and the resulting particles, cenospheres, were collected. To characterize the microstructure of these particles, scanning electron microscopy (SEM), and energy dispersive X-Ray (EDX) analysis were used. The particles were found to have either a porous or a skeleton/membrane morphology. The percentage of particles of either type appears to be related to the thermal history, which was controlled by the heated co-flow velocity. In the suspended droplet experiments, by suspending the droplet on a thermocouple, the temperature inside the droplet was measured while simultaneously imaging the various burning phases. A number of specific phases were identified, from liquid to solid phase combustion are presented and discussed. The droplet ignition temperature was seen to be independent of the droplet size. However, the liquid phase ignition delay time and the droplet lifetime were directly proportional to the initial droplet diameter.
    Citation
    Elbaz AM, khateeb AA, Roberts WL (2018) PM from the combustion of heavy fuel oils. Energy 152: 455–465. Available: http://dx.doi.org/10.1016/j.energy.2018.03.163.
    Sponsors
    The work presented in this publication was supported by the Saudi Electricity Company (SEC), in collaboration with the Clean Combustion Research Center (CCRC) at King Abdullah University of Science and Technology (KAUST).
    Publisher
    Elsevier BV
    Journal
    Energy
    DOI
    10.1016/j.energy.2018.03.163
    Additional Links
    http://www.sciencedirect.com/science/article/pii/S0360544218305723
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.energy.2018.03.163
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

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