IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v81y2015icp304-316.html
   My bibliography  Save this article

Optimization of a lignite-fired open pulverizing system boiler process based on variations in the drying agent composition

Author

Listed:
  • Ma, Youfu
  • Zhang, Hua
  • Yuan, Yichao
  • Wang, Zhiyun

Abstract

This paper evaluates three lignite-fired OPSB (open pulverizing system boiler) processes, named OPSB-A, OPSB-B and OPSB-C, corresponding to three options of drying agents used for the pulverizing systems. OPSB-B is similar to our previous work [18] on drying agent composition. Performances of the three OPSBs were calculated and compared with a 600 MW lignite-fired boiler as the reference. The results showed that the coal savings of OPSB-A and OPSB-C were 5.41% and 4.06% in comparison with the reference boiler, whereas for OPSB-B, the savings was 2.57%. Accordingly, emissions of each OPSB could be reduced in proportion to the coal savings. Among the three OPSBs, OPSB-C showed the best performance of water recovery from mill-exhausts because it had the highest mill-exhaust water dew point of 73.2 °C, whereas the exhaust dew points of OPSB-A and OPSB-B were 63.9 °C and 70.9 °C, respectively. Both OPSB-C and OPSB-B are beneficial for achieving a high mill-exhaust humidity ratio, which facilitates water recovery from the mill-exhaust, and a low oxygen content in mill-exhaust, which improves the operating safety of the pulverizing systems, whereas OPSB-A is relatively inferior in these respects. The OPSB-C process is recommended for engineering applications because of its favorable overall performances.

Suggested Citation

  • Ma, Youfu & Zhang, Hua & Yuan, Yichao & Wang, Zhiyun, 2015. "Optimization of a lignite-fired open pulverizing system boiler process based on variations in the drying agent composition," Energy, Elsevier, vol. 81(C), pages 304-316.
    • Handle: RePEc:eee:energy:v:81:y:2015:i:c:p:304-316
    DOI: 10.1016/j.energy.2014.12.044
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544214014169
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2014.12.044?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 search for a different version of it.

    References listed on IDEAS

    as
    1. Wang, Chaojun & He, Boshu & Sun, Shaoyang & Wu, Ying & Yan, Na & Yan, Linbo & Pei, Xiaohui, 2012. "Application of a low pressure economizer for waste heat recovery from the exhaust flue gas in a 600 MW power plant," Energy, Elsevier, vol. 48(1), pages 196-202.
    2. Wang, Chaojun & He, Boshu & Yan, Linbo & Pei, Xiaohui & Chen, Shinan, 2014. "Thermodynamic analysis of a low-pressure economizer based waste heat recovery system for a coal-fired power plant," Energy, Elsevier, vol. 65(C), pages 80-90.
    3. 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.
    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. 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.
    6. Xu, Gang & Huang, Shengwei & Yang, Yongping & Wu, Ying & Zhang, Kai & Xu, Cheng, 2013. "Techno-economic analysis and optimization of the heat recovery of utility boiler flue gas," Applied Energy, Elsevier, vol. 112(C), pages 907-917.
    7. 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.
    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. Li, Yong & Wang, Yanhong & Cao, Lihua & Hu, Pengfei & Han, Wei, 2018. "Modeling for the performance evaluation of 600 MW supercritical unit operating No.0 high pressure heater," Energy, Elsevier, vol. 149(C), pages 639-661.
    2. Atsonios, K. & Violidakis, I. & Sfetsioris, K. & Rakopoulos, D.C. & Grammelis, P. & Kakaras, E., 2016. "Pre-dried lignite technology implementation in partial load/low demand cases for flexibility enhancement," Energy, Elsevier, vol. 96(C), pages 427-436.
    3. Ma, Youfu & Chi, Tonghui & Yu, Yi & Lyu, Junfu & Wang, Zirui, 2024. "A green and efficient lignite-fired power generation process based on superheated-steam-dried open pulverizing system," Energy, Elsevier, vol. 294(C).
    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. Han, Xiaoqu & Liu, Ming & Zhai, Mengxu & Chong, Daotong & Yan, Junjie & Xiao, Feng, 2015. "Investigation on the off-design performances of flue gas pre-dried lignite-fired power system integrated with waste heat recovery at variable external working conditions," Energy, Elsevier, vol. 90(P2), pages 1743-1758.

    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. Jiayou Liu & Xiaoyun Gong & Wenhua Zhang & Fengzhong Sun & Qingbiao Wang, 2020. "Experimental Study on a Flue Gas Waste Heat Cascade Recovery System under Variable Working Conditions," Energies, MDPI, vol. 13(2), pages 1-19, January.
    2. Ma, Youfu & Wang, Zirui & Lu, Junfu & Yang, Lijuan, 2018. "Techno-economic analysis of a novel hot air recirculation process for exhaust heat recovery from a 600 MW brown-coal-fired boiler," Energy, Elsevier, vol. 152(C), pages 348-357.
    3. Yan, Min & Zhang, Liang & Shi, Yuetao & Zhang, Liqiang & Li, Yuzhong & Ma, Chunyuan, 2018. "A novel boiler cold-end optimisation system based on bypass flue in coal-fired power plants: Heat recovery from wet flue gas," Energy, Elsevier, vol. 152(C), pages 84-94.
    4. Jiayou Liu & Fengzhong Sun, 2019. "Node Temperature of the Coupled High-Low Energy Grade Flus Gas Waste Heat Recovery System," Energies, MDPI, vol. 12(2), pages 1-16, January.
    5. Chen, Heng & Wu, Yunyun & Qi, Zhen & Chen, Qiao & Xu, Gang & Yang, Yongping & Liu, Wenyi, 2019. "Improved combustion air preheating design using multiple heat sources incorporating bypass flue in large-scale coal-fired power unit," Energy, Elsevier, vol. 169(C), pages 527-541.
    6. Lin, Xiaolong & Li, Qinlun & Wang, Lukai & Guo, Yifan & Liu, Yinhe, 2020. "Thermo-economic analysis of typical thermal systems and corresponding novel system for a 1000 MW single reheat ultra-supercritical thermal power plant," Energy, Elsevier, vol. 201(C).
    7. Han, Xiaoqu & Liu, Ming & Zhai, Mengxu & Chong, Daotong & Yan, Junjie & Xiao, Feng, 2015. "Investigation on the off-design performances of flue gas pre-dried lignite-fired power system integrated with waste heat recovery at variable external working conditions," Energy, Elsevier, vol. 90(P2), pages 1743-1758.
    8. Li, Yong & Wang, Yanhong & Cao, Lihua & Hu, Pengfei & Han, Wei, 2018. "Modeling for the performance evaluation of 600 MW supercritical unit operating No.0 high pressure heater," Energy, Elsevier, vol. 149(C), pages 639-661.
    9. Ma, Hongqiang & Liang, Nuo & Liu, Yemin & Luo, Xinmei & Hou, Caiqin & Wang, Gang, 2021. "Experimental study on novel waste heat recovery system for sulfide-containing flue gas," Energy, Elsevier, vol. 227(C).
    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. Yang, Mei & Liu, Chao, 2017. "The calculation of fluorine plastic economizer in economy by using the equivalent heat drop," Energy, Elsevier, vol. 135(C), pages 674-684.
    12. Xiao, Pengcheng & Zhang, Yanping & Wang, Yuanjing & Wang, Jizhou, 2019. "Analysis of an improved economizer system for active control of the coal-fired boiler flue gas temperature," Energy, Elsevier, vol. 170(C), pages 185-198.
    13. Li, Yuzhong & Yan, Min & Zhang, Liqiang & Chen, Guifang & Cui, Lin & Song, Zhanlong & Chang, Jingcai & Ma, Chunyuan, 2016. "Method of flash evaporation and condensation – heat pump for deep cooling of coal-fired power plant flue gas: Latent heat and water recovery," Applied Energy, Elsevier, vol. 172(C), pages 107-117.
    14. Liu, Yinhe & Li, Qinlun & Duan, Xiaoli & Zhang, Yun & Yang, Zhen & Che, Defu, 2018. "Thermodynamic analysis of a modified system for a 1000 MW single reheat ultra-supercritical thermal power plant," Energy, Elsevier, vol. 145(C), pages 25-37.
    15. Jiayou Liu & Fengzhong Sun, 2019. "Experimental Study on Operation Regulation of a Coupled High–Low Energy Flue Gas Waste Heat Recovery System Based on Exhaust Gas Temperature Control," Energies, MDPI, vol. 12(4), pages 1-20, February.
    16. Wang, Xiang & Zhuo, Jiankun & Liu, Jianmin & Li, Shuiqing, 2020. "Synergetic process of condensing heat exchanger and absorption heat pump for waste heat and water recovery from flue gas," Applied Energy, Elsevier, vol. 261(C).
    17. Stevanovic, Vladimir D. & Petrovic, Milan M. & Wala, Tadeusz & Milivojevic, Sanja & Ilic, Milica & Muszynski, Slawomir, 2019. "Efficiency and power upgrade at the aged lignite-fired power plant by flue gas waste heat utilization: High pressure versus low pressure economizer installation," Energy, Elsevier, vol. 187(C).
    18. Wei, Maolin & Zhao, Xiling & Fu, Lin & Zhang, Shigang, 2017. "Performance study and application of new coal-fired boiler flue gas heat recovery system," Applied Energy, Elsevier, vol. 188(C), pages 121-129.
    19. 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.
    20. Xu, Cheng & Xu, Gang & Zhao, Shifei & Zhou, Luyao & Yang, Yongping & Zhang, Dongke, 2015. "An improved configuration of lignite pre-drying using a supplementary steam cycle in a lignite fired supercritical power plant," Applied Energy, Elsevier, vol. 160(C), pages 882-891.

    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:81:y:2015:i:c:p:304-316. 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.