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Simulation study on lignite-fired power system integrated with flue gas drying and waste heat recovery – Performances under variable power loads coupled with off-design parameters

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  • Han, Xiaoqu
  • Liu, Ming
  • Wang, Jinshi
  • Yan, Junjie
  • Liu, Jiping
  • Xiao, Feng

Abstract

Lignite is a kind of low rank coal with high moisture content and low net heating value, which is mainly used for electric power generation. However, the thermal efficiency of power plants firing lignite directly is very low. Pre-drying is a proactive option, dehydrating raw lignite to raise its heating value, to improve the power plant thermal efficiency. A pre-dried lignite-fired power system integrated with boiler flue gas drying and waste heat recovery was proposed in this paper. The plant thermal efficiency could be improved by 1.51% at benchmark condition due to pre-drying and waste heat recovery. The main system performances under variable power loads were simulated and analyzed. Simulation results show that the improvement of plant thermal efficiency reduced to 1.36% at 50% full load. Moreover, the influences of drying system off-design parameters were simulated coupled with power loads. The variation tendencies of main system parameters were obtained. The influence of pre-drying degree (including moisture content of pre-dried lignite and raw lignite) on the plant thermal efficiency diminishes gradually with the decreasing power load. The dryer thermal efficiency and dryer exhaust temperature are also main factors and the influences on system parameters have been quantitatively analyzed.

Suggested Citation

  • Han, Xiaoqu & Liu, Ming & Wang, Jinshi & Yan, Junjie & Liu, Jiping & Xiao, Feng, 2014. "Simulation study on lignite-fired power system integrated with flue gas drying and waste heat recovery – Performances under variable power loads coupled with off-design parameters," Energy, Elsevier, vol. 76(C), pages 406-418.
    • Handle: RePEc:eee:energy:v:76:y:2014:i:c:p:406-418
    DOI: 10.1016/j.energy.2014.08.032
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    References listed on IDEAS

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    1. Ma, Youfu & Yuan, Yichao & Jin, Jing & Zhang, Hua & Hu, Xiaohong & Shi, Dengyu, 2013. "An environment friendly and efficient lignite-fired power generation process based on a boiler with an open pulverizing system and the recovery of water from mill-exhaust," Energy, Elsevier, vol. 59(C), pages 105-115.
    2. Liu, Ming & Yan, JunJie & Chong, DaoTong & Liu, JiPing & Wang, JinShi, 2013. "Thermodynamic analysis of pre-drying methods for pre-dried lignite-fired power plant," Energy, Elsevier, vol. 49(C), pages 107-118.
    3. 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.
    4. Yu, Yong Ho & Kim, Sang Done & Lee, Jong Min & Lee, Keun Hoo, 2002. "Kinetic studies of dehydration, pyrolysis and combustion of paper sludge," Energy, Elsevier, vol. 27(5), pages 457-469.
    5. Agraniotis, Michalis & Koumanakos, Antonis & Doukelis, Aggelos & Karellas, Sotirios & Kakaras, Emmanuel, 2012. "Investigation of technical and economic aspects of pre-dried lignite utilisation in a modern lignite power plant towards zero CO2 emissions," Energy, Elsevier, vol. 45(1), pages 134-141.
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    4. Han, Xiaoqu & Liu, Ming & Wu, Kaili & Chen, Weixiong & Xiao, Feng & Yan, Junjie, 2016. "Exergy analysis of the flue gas pre-dried lignite-fired power system based on the boiler with open pulverizing system," Energy, Elsevier, vol. 106(C), pages 285-300.
    5. Walmsley, Timothy G. & Walmsley, Michael R.W. & Atkins, Martin J. & Neale, James R. & Tarighaleslami, Amir H., 2015. "Thermo-economic optimisation of industrial milk spray dryer exhaust to inlet air heat recovery," Energy, Elsevier, vol. 90(P1), pages 95-104.
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    8. Han, Yu & Sun, Yingying & Wu, Junjie, 2020. "An efficient solar-aided waste heat recovery system based on steam ejector and WTA pre-drying in solar/lignite hybrid power plants," Energy, Elsevier, vol. 208(C).
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