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NUMERICAL SIMULATION OF COMBUSTION CHARACTERISTICS AND NOx EMISSION IN A 330 MW POWER PLANT BOILER WITH SELF-SUSTAINING INTERNAL COMBUSTION BURNER.

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Title: NUMERICAL SIMULATION OF COMBUSTION CHARACTERISTICS AND NOx EMISSION IN A 330 MW POWER PLANT BOILER WITH SELF-SUSTAINING INTERNAL COMBUSTION BURNER.
Authors: TANG, Hong1, YANG, Jing1, TOMANOVIĆ, Ivan D.2, YAO, Guojia1 yaoguojia@neepu.edu.cn, HAN, Xiaoju1
Source: Thermal Science. 2026, Vol. 30 Issue 2B, p1341-1359. 19p.
Subjects: Coal-fired power plants, Combustion efficiency, Greenhouse gas mitigation, Flame, Steam generators, Computer simulation, Abatement (Atmospheric chemistry), Boiler efficiency
Abstract: Nitrogen oxides (NOx) emitted from coal-fired power plants are one of the primary sources of NOx in the atmosphere. More stringent requierements on NOx emissions are implemented in laws focusing on the environmental protection. The self-sustaining internal combustion (SSIC) burner can stably preheat the pulverized coal and produce reducing atmosphere, effectively reducing NOx emissions, but the SSIC burners are still not widely used in industrial boilers. The SSIC burner is being used on a 330 MW tangentially-fired boiler to reduce NOx emissions from the boiler and improve stabilized combustion performance. The effect of the SSIC burner on the flow, combustion and NOx emission characteristics of the boiler are investigated by numerically simulating the boiler before and after retrofit at different loads (100% and 70%). The findings indicate that the initial NOx emission at the outlet is reduced by 24.77% and 27.18%, respectively, when the boiler with SSIC burner is operated at 100% and 70% loads. The combustion stability is improved and the pulverized coal burnout rate is increased by 2.22% and 2.46%, respectively. The NOx emissions of the boiler with the SSIC burner is reduced to 91.73 mg/Nm³ at 70% load. The SSIC burner employed in the 330 MW tangentially fired boiler has been shown to achieve effective NOx reduction and can be adapted to the changing demands of the boiler load. This study offers beneficial guidance for the practical implementation of SSIC burners on industrial power station boilers. [ABSTRACT FROM AUTHOR]
Copyright of Thermal Science is the property of Society of Thermal Engineers of Serbia and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
  Group: Ti
  Data: NUMERICAL SIMULATION OF COMBUSTION CHARACTERISTICS AND NO<subscript>x</subscript> EMISSION IN A 330 MW POWER PLANT BOILER WITH SELF-SUSTAINING INTERNAL COMBUSTION BURNER.
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  Data: <searchLink fieldCode="AR" term="%22TANG%2C+Hong%22">TANG, Hong</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22YANG%2C+Jing%22">YANG, Jing</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22TOMANOVIĆ%2C+Ivan+D%2E%22">TOMANOVIĆ, Ivan D.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22YAO%2C+Guojia%22">YAO, Guojia</searchLink><relatesTo>1</relatesTo><i> yaoguojia@neepu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22HAN%2C+Xiaoju%22">HAN, Xiaoju</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Thermal+Science%22">Thermal Science</searchLink>. 2026, Vol. 30 Issue 2B, p1341-1359. 19p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Coal-fired+power+plants%22">Coal-fired power plants</searchLink><br /><searchLink fieldCode="DE" term="%22Combustion+efficiency%22">Combustion efficiency</searchLink><br /><searchLink fieldCode="DE" term="%22Greenhouse+gas+mitigation%22">Greenhouse gas mitigation</searchLink><br /><searchLink fieldCode="DE" term="%22Flame%22">Flame</searchLink><br /><searchLink fieldCode="DE" term="%22Steam+generators%22">Steam generators</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Abatement+%28Atmospheric+chemistry%29%22">Abatement (Atmospheric chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Boiler+efficiency%22">Boiler efficiency</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Nitrogen oxides (NOx) emitted from coal-fired power plants are one of the primary sources of NOx in the atmosphere. More stringent requierements on NOx emissions are implemented in laws focusing on the environmental protection. The self-sustaining internal combustion (SSIC) burner can stably preheat the pulverized coal and produce reducing atmosphere, effectively reducing NOx emissions, but the SSIC burners are still not widely used in industrial boilers. The SSIC burner is being used on a 330 MW tangentially-fired boiler to reduce NOx emissions from the boiler and improve stabilized combustion performance. The effect of the SSIC burner on the flow, combustion and NOx emission characteristics of the boiler are investigated by numerically simulating the boiler before and after retrofit at different loads (100% and 70%). The findings indicate that the initial NOx emission at the outlet is reduced by 24.77% and 27.18%, respectively, when the boiler with SSIC burner is operated at 100% and 70% loads. The combustion stability is improved and the pulverized coal burnout rate is increased by 2.22% and 2.46%, respectively. The NOx emissions of the boiler with the SSIC burner is reduced to 91.73 mg/Nm³ at 70% load. The SSIC burner employed in the 330 MW tangentially fired boiler has been shown to achieve effective NOx reduction and can be adapted to the changing demands of the boiler load. This study offers beneficial guidance for the practical implementation of SSIC burners on industrial power station boilers. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Thermal Science is the property of Society of Thermal Engineers of Serbia and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.2298/TSCI250721193T
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      – Code: eng
        Text: English
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        PageCount: 19
        StartPage: 1341
    Subjects:
      – SubjectFull: Coal-fired power plants
        Type: general
      – SubjectFull: Combustion efficiency
        Type: general
      – SubjectFull: Greenhouse gas mitigation
        Type: general
      – SubjectFull: Flame
        Type: general
      – SubjectFull: Steam generators
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      – SubjectFull: Computer simulation
        Type: general
      – SubjectFull: Abatement (Atmospheric chemistry)
        Type: general
      – SubjectFull: Boiler efficiency
        Type: general
    Titles:
      – TitleFull: NUMERICAL SIMULATION OF COMBUSTION CHARACTERISTICS AND NOx EMISSION IN A 330 MW POWER PLANT BOILER WITH SELF-SUSTAINING INTERNAL COMBUSTION BURNER.
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            NameFull: TANG, Hong
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            NameFull: YANG, Jing
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            NameFull: TOMANOVIĆ, Ivan D.
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            NameFull: YAO, Guojia
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            – D: 15
              M: 02
              Text: 2026
              Type: published
              Y: 2026
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              Value: 30
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            – TitleFull: Thermal Science
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