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Analysis of Gas Recirculation Influencing Factors of a Double Reheat 1000 MW Unit with the Reheat Steam Temperature under Control

Author

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  • Meng Yue

    (School of Energy and Power Engineering, Shandong University, Jinan 250100, China)

  • Guoqian Ma

    (School of Energy and Power Engineering, Shandong University, Jinan 250100, China)

  • Yuetao Shi

    (School of Energy and Power Engineering, Shandong University, Jinan 250100, China)

Abstract

In this paper, the simulation software EBSILON is used to simulate the reheat units, and the reheat temperature control mode is deeply explored. In the benchmark system, the influence of different load intermediate point temperature on the flue gas recirculation (FGR) is analyzed. Then, the effects of load, coal quality, excess air factor, and feed water temperature on FGR are studied under the premise of intermediate point temperature as design value, and the cause for FGR change is analyzed by comparing the cutoff bypass flue (CBF) system. The results show that under any load, the FGR decreases with the increase of the intermediate point temperature, while under low load, the change of the intermediate point temperature has a greater impact on the FGR rate. When the intermediate point temperature remains constant, the FGR plunge has an increase of load at low load and is almost unchanged at high load; the FGR rate of coal with low calorific value and high moisture content is low and the coal with low volatile and high ash content has great influence on reheat steam temperature; and the excess air factor and feed water temperature are inversely proportional to the flue gas recirculation rate. In the CBF system, the change trend is similar to the reference system, but under the same working condition, the FGR rate is higher than the latter.

Suggested Citation

  • Meng Yue & Guoqian Ma & Yuetao Shi, 2020. "Analysis of Gas Recirculation Influencing Factors of a Double Reheat 1000 MW Unit with the Reheat Steam Temperature under Control," Energies, MDPI, vol. 13(16), pages 1-22, August.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:16:p:4253-:d:400053
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    References listed on IDEAS

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    1. Li, Yuanyuan & Zhou, Luyao & Xu, Gang & Fang, Yaxiong & Zhao, Shifei & Yang, Yongping, 2014. "Thermodynamic analysis and optimization of a double reheat system in an ultra-supercritical power plant," Energy, Elsevier, vol. 74(C), pages 202-214.
    2. Hu, Yukun & Yan, Jinyue & Li, Hailong, 2012. "Effects of flue gas recycle on oxy-coal power generation systems," Applied Energy, Elsevier, vol. 97(C), pages 255-263.
    3. Zhang, Xiao-Hui & Feng, Peng & Xu, Jia-Rui & Feng, Li-Bin & Qing, Shan, 2020. "Numerical research on combining flue gas recirculation sintering and fuel layered distribution sintering in the iron ore sintering process," Energy, Elsevier, vol. 192(C).
    4. Stevanovic, Vladimir D. & Wala, Tadeusz & Muszynski, Slawomir & Milic, Milos & Jovanovic, Milorad, 2014. "Efficiency and power upgrade by an additional high pressure economizer installation at an aged 620 MWe lignite-fired power plant," Energy, Elsevier, vol. 66(C), pages 907-918.
    5. Hyun-Chul Lee & Eul-Bum Lee & Douglas Alleman, 2018. "Schedule Modeling to Estimate Typical Construction Durations and Areas of Risk for 1000 MW Ultra-Critical Coal-Fired Power Plants," Energies, MDPI, vol. 11(10), pages 1-15, October.
    6. Juntao Han & Guofeng Lou & Sizong Zhang & Zhi Wen & Xunliang Liu & Jiada Liu, 2019. "The Effects of Coke Parameters and Circulating Flue Gas Characteristics on NOx Emission during Flue Gas Recirculation Sintering Process," Energies, MDPI, vol. 12(20), pages 1-20, October.
    7. Ling, Zhongqian & Zhou, Hao & Ren, Tao, 2015. "Effect of the flue gas recirculation supply location on the heavy oil combustion and NOx emission characteristics within a pilot furnace fired by a swirl burner," Energy, Elsevier, vol. 91(C), pages 110-116.
    8. Zhao, Zhigang & Su, Sheng & Si, Ningning & Hu, Song & Wang, Yi & Xu, Jun & Jiang, Long & Chen, Gang & Xiang, Jun, 2017. "Exergy analysis of the turbine system in a 1000 MW double reheat ultra-supercritical power plant," Energy, Elsevier, vol. 119(C), pages 540-548.
    9. Yu, Byeonghun & Kum, Sung-Min & Lee, Chang-Eon & Lee, Seungro, 2013. "Effects of exhaust gas recirculation on the thermal efficiency and combustion characteristics for premixed combustion system," Energy, Elsevier, vol. 49(C), pages 375-383.
    10. Ma, Youfu & Yang, Lijuan & Lu, Junfu & Pei, Yufeng, 2016. "Techno-economic comparison of boiler cold-end exhaust gas heat recovery processes for efficient brown-coal-fired power generation," Energy, Elsevier, vol. 116(P1), pages 812-823.
    11. Espatolero, Sergio & Cortés, Cristóbal & Romeo, Luis M., 2010. "Optimization of boiler cold-end and integration with the steam cycle in supercritical units," Applied Energy, Elsevier, vol. 87(5), pages 1651-1660, May.
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    1. Paweł Ziółkowski & Paweł Madejski & Milad Amiri & Tomasz Kuś & Kamil Stasiak & Navaneethan Subramanian & Halina Pawlak-Kruczek & Janusz Badur & Łukasz Niedźwiecki & Dariusz Mikielewicz, 2021. "Thermodynamic Analysis of Negative CO 2 Emission Power Plant Using Aspen Plus, Aspen Hysys, and Ebsilon Software," Energies, MDPI, vol. 14(19), pages 1-27, October.

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