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  • Sun, Haijun  (2)
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  • 1
    Online Resource
    Online Resource
    Study on the Influence of the Activation Energy on the Simulation of Char Combustion
    IOP Publishing ; 2019
    In:  IOP Conference Series: Earth and Environmental Science Vol. 300, No. 4 ( 2019-07-01), p. 042062-
    Details
    In: IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 300, No. 4 ( 2019-07-01), p. 042062-
    Abstract: The numerical simulation of coal char combustion process can quickly obtain the combustion characteristics of char. It has guiding significance for the design and operation industrial boilers. But during the numerical simulation, how to choose the appropriate kinetic parameters is a difficult problem. The values of combustion activation energy in previous literatures were different. This paper focused on the influence of activation energy on the simulation results of char combustion. The activation energies of 20 Chinese typical coals were measured by a two-step in-situ reaction analyzer. CBK (Carbon burnout kinetics) model was used to simulate char combustion process. Results showed that when activation energy varied greatly, the the predicted combustion rate and particle temperature were very different, especially in the later stage of char combustion.
    Type of Medium: Online Resource
    ISSN: 1755-1307 , 1755-1315
    URL: Article
    DOI: 10.1088/1755-1315/300/4/042062
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2019
    detail.hit.zdb_id: 2434538-6
    Location Call Number Limitation Availability
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Analysis of NO emission characteristics of low-order blended fuels
    IOP Publishing ; 2019
    In:  IOP Conference Series: Earth and Environmental Science Vol. 300, No. 3 ( 2019-07-01), p. 032060-
    Details
    In: IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 300, No. 3 ( 2019-07-01), p. 032060-
    Abstract: Two kinds of typical coal (HSQ bituminous coal and LY anthracite coal) were selected as the object of research, and in the fixed bed reactor a series of research was carried to make a thorough inquiry on NO emission characteristics of coal combustion under different blending modes. The results of coal blended combustion show that: Improving the ratio of bituminous coal can advance the ignition and burnout, and improve the combustion performance of coal. When two kinds of coal burn blended, NO emission is between the concentration of these two kinds of single coal, and the NO conversion rate increases gradually with the growth of the proportion of anthracite; the interrelationship between these two kinds of coal has influence on NO emission, which is showed as form of inhibition or promotion when ratio of mixed coal is changed.
    Type of Medium: Online Resource
    ISSN: 1755-1307 , 1755-1315
    URL: Article
    DOI: 10.1088/1755-1315/300/3/032060
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2019
    detail.hit.zdb_id: 2434538-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
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