IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v82y2015icp968-975.html
   My bibliography  Save this article

A novel lignite-fired power plant integrated with a vacuum dryer: System design and thermodynamic analysis

Author

Listed:
  • Liu, Ming
  • Wu, Dongyin
  • Xiao, Feng
  • Yan, JunJie

Abstract

Pre-drying of lignite before feeding to the boiler is a potential way to increase the net efficiency of lignite-fired power plants. Lignite pre-drying is, however, a high energy consumption process with a high risk of spontaneous ignition. If the lignite is dried at low temperature, the possibility of spontaneous ignition of lignite in the drying process could be lowed. Furthermore that low temperature energy could be used as the drying heating source may result in a high net efficiency of the power plant. Therefore, we designed a lignite-fired power plant integrated with a vacuum dryer. We also thermodynamically analyzed a reference case of a 1000 MW power plant by using theoretical models developed. The results show that the net efficiency of power plant can be increased by 2.39% or 1.88% absolutely, if a low-pressure steam or heat pump is used to provide the drying heat source, respectively. From analyzing main factors, we discovered that the net efficiency of the power plant increases with the drying degree and decreases with the operating pressure of the dryer, and the heat pump is a better choice to provide the heating source for drying purposes with its second-law efficiency higher than 0.76.

Suggested Citation

  • Liu, Ming & Wu, Dongyin & Xiao, Feng & Yan, JunJie, 2015. "A novel lignite-fired power plant integrated with a vacuum dryer: System design and thermodynamic analysis," Energy, Elsevier, vol. 82(C), pages 968-975.
    • Handle: RePEc:eee:energy:v:82:y:2015:i:c:p:968-975
    DOI: 10.1016/j.energy.2015.01.106
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544215001449
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2015.01.106?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. 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.
    2. Bruninx, Kenneth & Madzharov, Darin & Delarue, Erik & D'haeseleer, William, 2013. "Impact of the German nuclear phase-out on Europe's electricity generation—A comprehensive study," Energy Policy, Elsevier, vol. 60(C), pages 251-261.
    3. Andersson, Eva & Harvey, Simon & Berntsson, Thore, 2006. "Energy efficient upgrading of biofuel integrated with a pulp mill," Energy, Elsevier, vol. 31(10), pages 1384-1394.
    4. 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.
    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.
    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, Zixiang & Miao, Zhengqing & Zhou, Yan & Wen, Shurong & Li, Jiangtao, 2018. "Influence of increased primary air ratio on boiler performance in a 660 MW brown coal boiler," Energy, Elsevier, vol. 152(C), pages 804-817.
    2. Heng Chen & Zhen Qi & Qiao Chen & Yunyun Wu & Gang Xu & Yongping Yang, 2018. "Modified High Back-Pressure Heating System Integrated with Raw Coal Pre-Drying in Combined Heat and Power Unit," Energies, MDPI, vol. 11(9), pages 1-16, September.
    3. 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.
    4. Wang, Yanhong & Cao, Lihua & Hu, Pengfei & Li, Bo & Li, Yong, 2019. "Model establishment and performance evaluation of a modified regenerative system for a 660 MW supercritical unit running at the IPT-setting mode," Energy, Elsevier, vol. 179(C), pages 890-915.
    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. 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.
    2. 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.
    3. Zbigniew Plutecki & Paweł Sattler & Krystian Ryszczyk & Anna Duczkowska & Stanisław Anweiler, 2020. "Thermokinetics of Brown Coal during a Fluidized Drying Process," Energies, MDPI, vol. 13(3), pages 1-16, February.
    4. Chantasiriwan, Somchart, 2021. "Optimum installation of flue gas dryer and additional air heater to increase the efficiency of coal-fired utility boiler," Energy, Elsevier, vol. 221(C).
    5. 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).
    6. 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.
    7. Li, Zixiang & Miao, Zhengqing & Zhou, Yan & Wen, Shurong & Li, Jiangtao, 2018. "Influence of increased primary air ratio on boiler performance in a 660 MW brown coal boiler," Energy, Elsevier, vol. 152(C), pages 804-817.
    8. 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.
    9. 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.
    10. Janusz Kotowicz & Sebastian Michalski & Mateusz Brzęczek, 2019. "The Characteristics of a Modern Oxy-Fuel Power Plant," Energies, MDPI, vol. 12(17), pages 1-34, September.
    11. 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.
    12. Li, Zixiang & Miao, Zhengqing & Shen, Xusheng & Li, Jiangtao, 2018. "Effects of momentum ratio and velocity difference on combustion performance in lignite-fired pulverized boiler," Energy, Elsevier, vol. 165(PA), pages 825-839.
    13. Hong, Sanghyun & Bradshaw, Corey J.A. & Brook, Barry W., 2014. "Nuclear power can reduce emissions and maintain a strong economy: Rating Australia’s optimal future electricity-generation mix by technologies and policies," Applied Energy, Elsevier, vol. 136(C), pages 712-725.
    14. Gebreegziabher, Tesfaldet & Oyedun, Adetoyese Olajire & Hui, Chi Wai, 2013. "Optimum biomass drying for combustion – A modeling approach," Energy, Elsevier, vol. 53(C), pages 67-73.
    15. Khouya, Ahmed, 2021. "Modelling and analysis of a hybrid solar dryer for woody biomass," Energy, Elsevier, vol. 216(C).
    16. Han, Yu & Sun, Yingying & Wu, Junjie, 2023. "A novel solar-driven waste heat recovery system in solar-fuel hybrid power plants," Energy, Elsevier, vol. 285(C).
    17. Pawlak-Kruczek, Halina & Niedźwiecki, Łukasz & Ostrycharczyk, Michał & Czerep, Michał & Plutecki, Zbigniew, 2019. "Potential and methods for increasing the flexibility and efficiency of the lignite fired power unit, using integrated lignite drying," Energy, Elsevier, vol. 181(C), pages 1142-1151.
    18. Kosugi, Takanobu, 2016. "Endogenizing the probability of nuclear exit in an optimal power-generation mix model," Energy, Elsevier, vol. 100(C), pages 102-114.
    19. Nam, Hoseok & Konishi, Satoshi & Nam, Ki-Woo, 2021. "Comparative analysis of decision making regarding nuclear policy after the Fukushima Dai-ichi Nuclear Power Plant Accident: Case study in Germany and Japan," Technology in Society, Elsevier, vol. 67(C).
    20. Schmidt, Johannes & Leduc, Sylvain & Dotzauer, Erik & Kindermann, Georg & Schmid, Erwin, 2010. "Cost-effective CO2 emission reduction through heat, power and biofuel production from woody biomass: A spatially explicit comparison of conversion technologies," Applied Energy, Elsevier, vol. 87(7), pages 2128-2141, July.

    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:82:y:2015:i:c:p:968-975. 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.