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Synergetic process of condensing heat exchanger and absorption heat pump for waste heat and water recovery from flue gas

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  • Wang, Xiang
  • Zhuo, Jiankun
  • Liu, Jianmin
  • Li, Shuiqing

Abstract

This paper presents a process for recovering waste heat and water from high-humidity flue gas after the wet flue gas desulfurization scrubber. A condensing heat exchanger and an absorption heat pump are integrated into the condenser cooling water system by using a portion of the condenser cooling water as the working fluid. Two different arrangements of a reference power plant (1000 MW) are studied for the heating and non-heating seasons. The condensing heat exchanger performances in terms of heat transfer surface area, working fluid flow rate and heat transfer rate are evaluated, the influence of the coal type on them is specially examined. Besides, a technical-economic analysis of the process is also performed. The results indicate that the optimal logarithmic mean temperature difference range of the condensing heat exchanger is 15–30 °C considering the cost of heat transfer surface areas. The presented process is used to determine the best low-temperature working fluid for the condensing heat exchanger while the cooling tower efficiency and water balance are not affected. For bituminous coal, reducing the high-humidity flue gas temperature by 5 °C, 81.4 t/h of water is recovered and 44.8% of water consumption in the scrubber can be saved. During the heating season, 125.8 MW of waste heat is recovered with 50.3% from the condenser cooling water and 49.7% from the high-humidity flue gas. During the non-heating season, 77.9 MW of waste heat is recovered with all from the condenser cooling water. This process is economic, especially for burning high water content coal.

Suggested Citation

  • 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).
    • Handle: RePEc:eee:appene:v:261:y:2020:i:c:s0306261919320884
    DOI: 10.1016/j.apenergy.2019.114401
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    References listed on IDEAS

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    1. 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.
    2. 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.
    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. 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.
    5. 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.
    6. Li, Yan & Chang, Shanshan & Fu, Lin & Zhang, Shuyan, 2016. "A technology review on recovering waste heat from the condensers of large turbine units in China," Renewable and Sustainable Energy Reviews, Elsevier, vol. 58(C), pages 287-296.
    7. Feeley, Thomas J. & Skone, Timothy J. & Stiegel, Gary J. & McNemar, Andrea & Nemeth, Michael & Schimmoller, Brian & Murphy, James T. & Manfredo, Lynn, 2008. "Water: A critical resource in the thermoelectric power industry," Energy, Elsevier, vol. 33(1), pages 1-11.
    8. 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.
    9. Wang, Dexin & Bao, Ainan & Kunc, Walter & Liss, William, 2012. "Coal power plant flue gas waste heat and water recovery," Applied Energy, Elsevier, vol. 91(1), pages 341-348.
    10. Chua, K.J. & Chou, S.K. & Yang, W.M., 2010. "Advances in heat pump systems: A review," Applied Energy, Elsevier, vol. 87(12), pages 3611-3624, December.
    11. 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.
    12. 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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