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Effects of exhaust tube vortex on the in-furnace phenomena in a swirl-stabilized pulverized coal flame

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Listed:
  • Choi, Minsung
  • Park, Yeseul
  • Deng, Kaiwen
  • Li, Xinzhuo
  • Kim, Kibeom
  • Sung, Yonmo
  • Hwang, Taegam
  • Choi, Gyungmin

Abstract

This paper presents an experimental investigation of the effects of the exhaust tube vortex (ETV) on pollutant emissions and carbon burnout performance. The novelty in this study is to improve understanding of combustion behavior with the ETV structure via detailed in-furnace measurements (temperature, gas-phase species concentration, carbon burnout, emissions, and etc.) in a 16-kWth coal-fired furnace. The experiment considered two different swirling flames (co- and counter-swirl) with four air staging positions. A hollow tubular structure such as the ETV structure has been created under the co-swirl condition. The values of NOx emissions are about 430 ppm, but the CO emission is lower and carbon burnout is approximately 2% higher than that of the counter-swirl unstaging condition at the furnace outlet. For the air staging conditions, the air staging position 3 (SL3) maintained the generated ETV structure stronger in the primary combustion zone. The SL3 condition produced the lowest CO emission at about 275 ppm, and a relatively low emission of NOx showed with the highest carbon burnout performance of approximately 94.5% or more. The SL3 condition is the most favorable condition for the synergistic effect of air staging technology on the ETV structure with a low-NOx swirl-stabilized burner.

Suggested Citation

  • Choi, Minsung & Park, Yeseul & Deng, Kaiwen & Li, Xinzhuo & Kim, Kibeom & Sung, Yonmo & Hwang, Taegam & Choi, Gyungmin, 2022. "Effects of exhaust tube vortex on the in-furnace phenomena in a swirl-stabilized pulverized coal flame," Energy, Elsevier, vol. 239(PE).
    • Handle: RePEc:eee:energy:v:239:y:2022:i:pe:s036054422102658x
    DOI: 10.1016/j.energy.2021.122409
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    1. Choi, Minsung & Park, Yeseul & Li, Xinzhuo & Kim, Kibeom & Sung, Yonmo & Hwang, Taegam & Choi, Gyungmin, 2021. "Numerical evaluation of pulverized coal swirling flames and NOx emissions in a coal-fired boiler: Effects of co- and counter-swirling flames and coal injection modes," Energy, Elsevier, vol. 217(C).
    2. Choi, Minsung & Kim, Kibeom & Li, Xinzhuo & Deng, Kaiwen & Park, Yeseul & Seo, Minseok & Sung, Yonmo & Choi, Gyungmin, 2020. "Strategic combustion technology with exhaust tube vortex flame: Combined effect of biomass co-firing and air-staged combustion on combustion characteristics and ash deposition," Energy, Elsevier, vol. 203(C).
    3. Sung, Yonmo & Lee, Sangmin & Eom, Seongyong & Moon, Cheoreon & Ahn, Seongyool & Choi, Gyungmin & Kim, Duckjool, 2016. "Optical non-intrusive measurements of internal recirculation zone of pulverized coal swirling flames with secondary swirl intensity," Energy, Elsevier, vol. 103(C), pages 61-74.
    4. Jain, Ayush & Singh, Akhilendra Pratap & Agarwal, Avinash Kumar, 2017. "Effect of split fuel injection and EGR on NOx and PM emission reduction in a low temperature combustion (LTC) mode diesel engine," Energy, Elsevier, vol. 122(C), pages 249-264.
    5. Wang, Qingxiang & Chen, Zhichao & Wang, Jiaquan & Zeng, Lingyan & Zhang, Xin & Li, Xiaoguang & Li, Zhengqi, 2018. "Effects of secondary air distribution in primary combustion zone on combustion and NOx emissions of a large-scale down-fired boiler with air staging," Energy, Elsevier, vol. 165(PB), pages 399-410.
    6. Wang, Junchao & Fan, Weidong & Li, Yu & Xiao, Meng & Wang, Kang & Ren, Peng, 2012. "The effect of air staged combustion on NOx emissions in dried lignite combustion," Energy, Elsevier, vol. 37(1), pages 725-736.
    7. Ti, Shuguang & Chen, Zhichao & Li, Zhengqi & Xie, Yiquan & Shao, Yunlin & Zong, Qiudong & Zhang, Qinghua & Zhang, Hao & Zeng, Lingyan & Zhu, Qunyi, 2014. "Influence of different swirl vane angles of over fire air on flow and combustion characteristics and NOx emissions in a 600 MWe utility boiler," Energy, Elsevier, vol. 74(C), pages 775-787.
    8. Wang, Chunlin & Liu, Yang & Zheng, Song & Jiang, Aipeng, 2018. "Optimizing combustion of coal fired boilers for reducing NOx emission using Gaussian Process," Energy, Elsevier, vol. 153(C), pages 149-158.
    9. Ti, Shuguang & Chen, Zhichao & Li, Zhengqi & Kuang, Min & Xu, Guangyin & Lai, Jinping & Wang, Zhenfeng, 2018. "Influence of primary air cone length on combustion characteristics and NOx emissions of a swirl burner from a 0.5 MW pulverized coal-fired furnace with air staging," Applied Energy, Elsevier, vol. 211(C), pages 1179-1189.
    10. Weldu, Yemane W. & Assefa, Getachew & Jolliet, Olivier, 2017. "Life cycle human health and ecotoxicological impacts assessment of electricity production from wood biomass compared to coal fuel," Applied Energy, Elsevier, vol. 187(C), pages 564-574.
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    1. Li, Xinzhuo & Choi, Minsung & Jung, Chanho & Park, Yeseul & Choi, Gyungmin, 2022. "Effects of the staging position and air−LPG mixing ratio on the combustion and emission characteristics of coal and gas co-firing," Energy, Elsevier, vol. 254(PB).
    2. Yuan, Zhenhua & Chen, Zhichao & Bian, Liguo & Wu, Xiaolan & Zhang, Bo & Li, Jiawei & Qiao, Yanyu & Li, Zhengqi, 2023. "Influence of blade angle in the outer secondary air for swirl burner on the flow, combustion, and slagging characteristics in the pre-combustion chamber under the air-staged condition," Energy, Elsevier, vol. 275(C).
    3. Choi, Minsung & Hwang, Taegam & Park, Yeseul & Li, Xinzhuo & Kim, Junsung & Kim, Kibeom & Sung, Yonmo & Choi, Gyungmin, 2023. "Numerical evaluation of the effect of swirl configuration and fuel-rich environment on combustion and emission characteristics in a coal-fired boiler," Energy, Elsevier, vol. 268(C).

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