IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v323y2025ics0360544225014872.html

Wide-load combustion characteristics of lean coal tangential preheating combustion

Author

Listed:
  • Zhu, Shujun
  • Zhou, Haoyang
  • Li, Zhaoyang
  • Zeng, Xiongwei
  • Ouyang, Ziqu
  • Hui, Jicheng
  • Lin, Jiangong
  • Su, Kun
  • Wang, Hongshuai
  • Ding, Hongliang
  • Lyu, Qinggang

Abstract

In this study, the preheating combustion technology is applied to pulverized coal tangential combustion, which is a main combustion mode of large-capacity pulverized coal boilers. The tangential combustion characteristics of pulverized coal and preheated fuel are compared, and wide-load coupled combustion characteristics are explored. The results demonstrate that the preheated fuel exhibited enhanced ignition and more stable combustion performance, which was advantageous for achieving deep and flexible peak shaving. Tangential preheating combustion system could realize the stable operation of 19 %–100 % combustion load. Compared to traditional pulverized coal burners, retrofitting the single-layer nozzle into a pre-circulating fluidized bed (PCFB) reduced NOx emissions by about 28 % and increased combustion efficiency by approximately 1 %. Moreover, the stable coupled combustion of pulverized coal and preheated fuel confirmed the feasibility of retrofitting PCFB layers in coal-fired boilers with multi-layer nozzles. Additionally, reducing the combustion load lowered NOx emissions but slightly decreased combustion efficiency. Furthermore, the diagonal operation of PCFBs could be used as an operating mode under ultra-low loads. The study demonstrates the viability of integrating preheating combustion technology and pulverized coal tangential combustion, proposing a novel low-load operation mode with potential application in coal-fired power plants.

Suggested Citation

  • Zhu, Shujun & Zhou, Haoyang & Li, Zhaoyang & Zeng, Xiongwei & Ouyang, Ziqu & Hui, Jicheng & Lin, Jiangong & Su, Kun & Wang, Hongshuai & Ding, Hongliang & Lyu, Qinggang, 2025. "Wide-load combustion characteristics of lean coal tangential preheating combustion," Energy, Elsevier, vol. 323(C).
    • Handle: RePEc:eee:energy:v:323:y:2025:i:c:s0360544225014872
    DOI: 10.1016/j.energy.2025.135845
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544225014872
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2025.135845?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to

    for a different version of it.

    References listed on IDEAS

    as
    1. Zeng, Guang & Zhou, Anqi & Fu, Jinming & Ji, Yang, 2022. "Experimental and numerical investigations on NOx formation and reduction mechanisms of pulverized-coal stereo-staged combustion," Energy, Elsevier, vol. 261(PB).
    2. Wang, Qingxiang & Chen, Zhichao & Li, Liankai & Zeng, Lingyan & Li, Zhengqi, 2020. "Achievement in ultra-low-load combustion stability for an anthracite- and down-fired boiler after applying novel swirl burners: From laboratory experiments to industrial applications," Energy, Elsevier, vol. 192(C).
    3. D. Zhang & M. Zhao & Y. Wang & S. Vigne & R. Benkraiem, 2024. "Technological innovation and its influence on energy risk management: Unpacking China’s energy consumption structure optimisation amidst climate change," Post-Print hal-04864387, HAL.
    4. Zhu, Shujun & Hui, Jicheng & Lyu, Qinggang & Ouyang, Ziqu & Zeng, Xiongwei & Zhu, Jianguo & Liu, Jingzhang & Cao, Xiaoyang & Zhang, Xiaoyu & Ding, Hongliang & Liu, Yuhua, 2023. "Experimental study on pulverized coal swirl-opposed combustion preheated by a circulating fluidized bed. Part A. Wide-load operation and low-NOx emission characteristics," Energy, Elsevier, vol. 284(C).
    5. Su, Kun & Ouyang, Ziqu & Ding, Hongliang & Wang, Wenyu & Zhang, Jinyang & Wang, Hongshuai & Zhu, Shujun, 2023. "Experimental investigation on effect of external circulation system on preheating characteristics of pulverized coal," Energy, Elsevier, vol. 278(C).
    6. Zeng, Sheng & Su, Bin & Zhang, Minglong & Gao, Yuan & Liu, Jun & Luo, Song & Tao, Qingmei, 2021. "Analysis and forecast of China's energy consumption structure," Energy Policy, Elsevier, vol. 159(C).
    7. Han, Yu & Sun, Yingying & Wu, Junjie, 2024. "An efficient and low-cost solar-aided lignite drying power generation system based on cascade utilisation of concentrating and non-concentrating solar energy," Energy, Elsevier, vol. 289(C).
    8. Krzywanski, J. & Czakiert, T. & Nowak, W. & Shimizu, T. & Zylka, A. & Idziak, K. & Sosnowski, M. & Grabowska, K., 2022. "Gaseous emissions from advanced CLC and oxyfuel fluidized bed combustion of coal and biomass in a complex geometry facility:A comprehensive model," Energy, Elsevier, vol. 251(C).
    9. Alobaid, Falah & Peters, Jens & Epple, Bernd, 2021. "Experimental measurements for Polish lignite combustion in a 1 MWth circulating fluidized bed during load changes," Energy, Elsevier, vol. 228(C).
    10. Zeng, Guang & Xu, Mingchen & Tu, Yaojie & Li, Zhenwei & Cai, Yongtie & Zheng, Zhimin & Tay, Kunlin & Yang, Wenming, 2020. "Influences of initial coal concentration on ignition behaviors of low-NOx bias combustion technology," Applied Energy, Elsevier, vol. 278(C).
    11. Zhang, Xiaoli & Cui, Xueqin & Li, Bo & Hidalgo-Gonzalez, Patricia & Kammen, Daniel M & Zou, Ji & Wang, Ke, 2022. "Immediate actions on coal phaseout enable a just low-carbon transition in China’s power sector," Applied Energy, Elsevier, vol. 308(C).
    12. Sun, Yang & Wang, Ligang & Xu, Cheng & Van herle, Jan & Maréchal, François & Yang, Yongping, 2020. "Enhancing the operational flexibility of thermal power plants by coupling high-temperature power-to-gas," Applied Energy, Elsevier, vol. 263(C).
    13. Zhang, Dongyang & Zhao, Mengjiao & Wang, Yizhi & Vigne, Samuel A. & Benkraiem, Ramzi, 2024. "Technological innovation and its influence on energy risk management: Unpacking China’s energy consumption structure optimisation amidst climate change," Energy Economics, Elsevier, vol. 131(C).
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Fu, Jinming & Zhu, Shujun & Liu, Yuhua & Sun, Yunkai & Chai, Zhen & Gao, Ming & Lyu, Qinggang, 2025. "Case analysis of combustion-side flexibility retrofit schemes based on a framework for technical economy of coal-fired unit," Energy, Elsevier, vol. 339(C).
    2. Zhang, Menghui & Qi, Yongfeng & Zhu, Sulong & Zhang, Wan & Wang, Meiting & Xu, Hanlu & Luo, Xufeng & Ruan, Zhaohui & Chen, Jiamin, 2026. "A review on low-load stable combustion technology for boiler in deep peak shaving of coal-fired power units," Renewable and Sustainable Energy Reviews, Elsevier, vol. 229(C).

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Zhu, Shujun & Hui, Jicheng & Lyu, Qinggang & Ouyang, Ziqu & Zeng, Xiongwei & Zhu, Jianguo & Liu, Jingzhang & Cao, Xiaoyang & Zhang, Xiaoyu & Ding, Hongliang & Liu, Yuhua, 2023. "Experimental study on pulverized coal swirl-opposed combustion preheated by a circulating fluidized bed. Part A. Wide-load operation and low-NOx emission characteristics," Energy, Elsevier, vol. 284(C).
    2. Tang, Hong & Xu, Zhiming & Han, Xiaoju & Sun, Lingfang & Liu, Yuqiu & Shen, Xueqiang & Liu, Zuodong, 2024. "Design method and experimental study on a novel self-sustaining internal combustion burner," Energy, Elsevier, vol. 308(C).
    3. Yufan Liang & Yu Song & Zuxu Chen, 2025. "Correlation Effects, Driving Forces and Evolutionary Paths of Cross-Industry Transfer of Energy Consumption in China: A New Analytical Framework," Energies, MDPI, vol. 18(12), pages 1-21, June.
    4. Rong, Xueyun & Chen, Haixin & Liu, Shuhao, 2024. "Nonlinear impact of climate risks on renewable energy stocks in China: A moderating effects study," International Review of Financial Analysis, Elsevier, vol. 96(PA).
    5. Zhang, Menghui & Qi, Yongfeng & Zhu, Sulong & Zhang, Wan & Wang, Meiting & Xu, Hanlu & Luo, Xufeng & Ruan, Zhaohui & Chen, Jiamin, 2026. "A review on low-load stable combustion technology for boiler in deep peak shaving of coal-fired power units," Renewable and Sustainable Energy Reviews, Elsevier, vol. 229(C).
    6. Li, Zhiyi & Hu, Boqiang & Bao, Yifei & Wang, Yifei, 2025. "Supply chain digitalization, green technology innovation and corporate energy efficiency," Energy Economics, Elsevier, vol. 142(C).
    7. Cem Işık & Serdar Ongan & Bekhzod Kuziboev & İlyas Kays İmamoğlu, 2026. "Does Climate Change Vulnerability Cause Energy Vulnerability in Sustainable Development?," Sustainable Development, John Wiley & Sons, Ltd., vol. 34(S2), pages 1170-1181, March.
    8. Zhao, Hongwei & Liao, Weidong, 2025. "The nexus between climate risk and corporate green innovation: the moderating role of supply chain finance," Finance Research Letters, Elsevier, vol. 85(PB).
    9. Askarova, Аliya & Georgiev, Aleksandar & Bolegenova, Saltanat & Maximov, Valeriy & Bolegenova, Symbat & Toktarov, Dimash & Nugymanova, Aizhan, 2025. "Highly efficient plasma technology for ignition and thermochemical preparation of high-ash fuel in various power boilers in Kazakhstan," Energy, Elsevier, vol. 322(C).
    10. Zhao, Shikuan & Hunjra, Ahmed Imran & Battisti, Enrico & Zhu, Zhimeng, 2025. "Technology lock-in or innovation breakthrough: Global energy mix transformation driven by technological innovation," Energy Economics, Elsevier, vol. 149(C).
    11. Shahzad, Umer, 2025. "Achieving clean energy transitions: How green innovation and financial development shape energy usage," Energy Economics, Elsevier, vol. 150(C).
    12. Palomba, Giulio & Tedeschi, Marco, 2025. "Commodity price dynamics in the era of energy transition: Exploring the substitutability of clean energy," Economic Analysis and Policy, Elsevier, vol. 88(C), pages 214-236.
    13. Chen, Pengyu & Chu, Zhongzhu & Dagestani, Abd Alwahed & Han, Hui, 2025. "Responding to SDG13: Exploring the role of renewable energy in physical climate risk governance," Energy, Elsevier, vol. 338(C).
    14. Lee, Chien-Chiang & Wu, Zhihang, 2025. "Developing renewable energy in the face of extreme climate: Implications of tertiarization," Energy, Elsevier, vol. 321(C).
    15. Wang, Siquan & Du, Anna Min & Lin, Boqiang, 2025. "Market mechanisms for energy transition: Fossil energy price shocks and irrational renewable energy financing," Journal of International Money and Finance, Elsevier, vol. 151(C).
    16. Fang, Yinhai & Liu, Zhihui, 2025. "Can digital finance enhance enterprise research and development innovation? The mediating role of dual consumption behavior transformation," Finance Research Letters, Elsevier, vol. 71(C).
    17. Li, Shuyun & Ding, Hongliang & Ouyang, Ziqu & Su, Kun & Wang, Hongshuai & Chen, Qisi & Wu, Lingming, 2025. "Experimental study on activation, combustion behavior and NOx emissions of large-grained coal in a purification-combustion system," Energy, Elsevier, vol. 341(C).
    18. Belal, Belal Y. & Li, Gesheng & Zhang, Zunhua & El-Batsh, H.M. & Moneib, Hany A. & Attia, Ali M.A., 2021. "The effect of swirl burner design configuration on combustion and emission characteristics of lean pre-vaporized premixed flames," Energy, Elsevier, vol. 228(C).
    19. Feng, Xiangdong & Liu, Shanjian & Yue, Kang & Wei, Heng & Bi, Dongmei & Zhao, Wenjing, 2023. "Insight into the promotional effect of Mn-modified nitrogenous biochar on the NH3-SCR denitrification activity at low temperatures," Energy, Elsevier, vol. 285(C).
    20. Jia, Min & Zhang, Zhe & Zhang, Li & Zhao, Liang & Lu, Xinbo & Li, Linyan & Ruan, Jianhui & Wu, Yunlong & He, Zhuoming & Liu, Mei & Jiang, Lingling & Gao, Yajing & Wu, Pengcheng & Zhu, Shuying & Niu, M, 2024. "Optimization of electricity generation and assessment of provincial grid emission factors from 2020 to 2060 in China," Applied Energy, Elsevier, vol. 373(C).

    More about this item

    Keywords

    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:323:y:2025:i:c:s0360544225014872. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.