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Numerical Simulation Study of Hydrogen Blending Combustion in Swirl Pulverized Coal Burner

Author

Listed:
  • Xiang Lin

    (State Grid Xin Jiang Company Limited Electric Power Research Institute, Urumqi 830047, China)

  • Xin Lei

    (Laboratory of Energy Carbon Neutrality, School of Electrical Engineering, Xinjiang University, Urumqi 830047, China
    Engineering Research Center of Northwest Energy Carbon Neutrality, Ministry of Education, Urumqi 830047, China)

  • Chen Wang

    (State Grid Xingjiang Electric Power Co., Ltd., Urumqi 830000, China)

  • Xuehui Jing

    (State Grid Xin Jiang Company Limited Electric Power Research Institute, Urumqi 830047, China)

  • Wei Liu

    (State Grid Xin Jiang Company Limited Electric Power Research Institute, Urumqi 830047, China)

  • Lijiang Dong

    (Xinjiang Xinneng Group Urumqi Electric Power Construction and Commissioning Institute, Urumqi 830011, China)

  • Qiaozhen Wang

    (State Grid Xin Jiang Company Limited Electric Power Research Institute, Urumqi 830047, China)

  • Hao Lu

    (Laboratory of Energy Carbon Neutrality, School of Electrical Engineering, Xinjiang University, Urumqi 830047, China
    Engineering Research Center of Northwest Energy Carbon Neutrality, Ministry of Education, Urumqi 830047, China
    Center of New Energy Research, School of Future Technology, Xinjiang University, Urumqi 830047, China)

Abstract

Hydrogen blending of pulverized coal in boilers is a promising technology. However, there are few studies on hydrogen blending in coal-fired boilers. In order to reduce CO 2 emissions from coal-fired boilers, this study investigates the co-combustion of pulverized coal and hydrogen in a swirl pulverized coal burner by numerical simulation. Itis shown that the burnout rate of fuel is 5.08% higher than that of non-hydrogen blended coal when the percentage of hydrogen blended is 5%. The water vapor generated by hydrogen blending not only leads to the formation of a low-temperature zone near the burner outlet; it also results in a prolonged burnout time of moist pulverized coal and a high-temperature zone near the furnace outlet. The greater the amount of hydrogen for blending, the higher the water produced. When 1–3% hydrogen is blended, the water vapor in the furnace reacts with the carbon to produce a large amount of CO. When the amount of hydrogen added to the furnace is more than 3%, the water content in the furnace rises, resulting in a lower temperature at the burner outlet and a decrease in the amount of CO produced. When 1–3% hydrogen is blended, the CO 2 emission rises. The CO 2 emission decreased by 1.49% for 5% hydrogen blending compared to non-hydrogen blending and by 3.22% compared to 1% hydrogen blending.

Suggested Citation

  • Xiang Lin & Xin Lei & Chen Wang & Xuehui Jing & Wei Liu & Lijiang Dong & Qiaozhen Wang & Hao Lu, 2024. "Numerical Simulation Study of Hydrogen Blending Combustion in Swirl Pulverized Coal Burner," Energies, MDPI, vol. 17(1), pages 1-17, January.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:1:p:248-:d:1312418
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    References listed on IDEAS

    as
    1. Liu, Mingyu & Chen, Sheng & Zhu, Hongwei & Zhou, Zijian & Xu, Jingying, 2023. "Numerical investigation of ammonia/coal co-combustion in a low NOx swirl burner," Energy, Elsevier, vol. 282(C).
    2. Yan, Rong & Chen, Zhichao & Zheng, Yu & Yuan, Linxuan & Zeng, Lingyan & Li, Zhengqi, 2021. "Influence of inner and outer secondary air ratio on flow and combustion characteristics of a swirl burner in a 29 MW pulverized coal boiler," Energy, Elsevier, vol. 237(C).
    3. Tamura, Masato & Gotou, Takahiro & Ishii, Hiroki & Riechelmann, Dirk, 2020. "Experimental investigation of ammonia combustion in a bench scale 1.2 MW-thermal pulverised coal firing furnace," Applied Energy, Elsevier, vol. 277(C).
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