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Thermogravimetric Analysis of Blended Fuel of Pig Manure, Straw, and Coal

Author

Listed:
  • Chengzhe Shen

    (Sanhe Power Generation Co., Ltd., Sanhe 065201, China)

  • Yan Zhang

    (Sanhe Power Generation Co., Ltd., Sanhe 065201, China)

  • Gengsheng Liu

    (Sanhe Power Generation Co., Ltd., Sanhe 065201, China)

  • Dongxu Wang

    (Sanhe Power Generation Co., Ltd., Sanhe 065201, China)

  • Jinbao Zhang

    (Sanhe Power Generation Co., Ltd., Sanhe 065201, China)

  • Kai Yang

    (Sanhe Power Generation Co., Ltd., Sanhe 065201, China)

  • Xintong Wen

    (Sanhe Power Generation Co., Ltd., Sanhe 065201, China)

  • Quan Sun

    (Sanhe Power Generation Co., Ltd., Sanhe 065201, China)

  • Xuejun Dou

    (Sanhe Power Generation Co., Ltd., Sanhe 065201, China)

  • Yong Zhang

    (Yantai Longyuan Power Technology Co., Ltd., Yantai 264006, China)

  • Jingwen Mao

    (State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Lei Deng

    (State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

Abstract

This study investigated the combustion performance of pig manure, straw, and coal at various blending ratios using thermogravimetric analysis. The synergistic effect of coal and pig manure at various ratios was analyzed, and kinetic analysis was performed using the Coats–Redfern method. The results showed that the overall combustion performance and stability of the blended fuel improved as the blending ratio of pig manure and straw increased. Increasing the ratio of pig manure reduced the ignition temperature of blended fuel from 696 K to 675 K. Additionally, the combustion of pig manure and coal exhibited a significant synergistic effect, strongest at a 5% blending ratio. For combustion reactions with conversion rates between 0.2 and 0.8, the activation energy required was 75.82 kJ mol −1 for a 10% pig manure blending ratio and 44.33 kJ mol⁻ 1 for a 30% blending ratio. These results demonstrate that lower activation energies suggest that the combustion reaction is more likely to proceed. The activation energy of straw was higher than that of pig manure at all blending ratios. These findings suggest that pig manure burns more easily when blended with coal than straw.

Suggested Citation

  • Chengzhe Shen & Yan Zhang & Gengsheng Liu & Dongxu Wang & Jinbao Zhang & Kai Yang & Xintong Wen & Quan Sun & Xuejun Dou & Yong Zhang & Jingwen Mao & Lei Deng, 2025. "Thermogravimetric Analysis of Blended Fuel of Pig Manure, Straw, and Coal," Energies, MDPI, vol. 18(13), pages 1-17, June.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:13:p:3447-:d:1691639
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    References listed on IDEAS

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