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Heat–power decoupling technologies for coal-fired CHP plants: Operation flexibility and thermodynamic performance

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  • Liu, Ming
  • Wang, Shan
  • Zhao, Yongliang
  • Tang, Haiyu
  • Yan, Junjie

Abstract

Heat–power decoupling is important for combined heat and power (CHP) plants because it improves their operational flexibility. In this study, off-design and thermodynamic analysis models are developed to examine and compare the operational flexibility improvement and thermodynamic performance of heat–power decoupling technologies. Quantitative analyses are then conducted on a 350 MW reference CHP plant. Results show that feasible operation domains are enlarged by heat–power decoupling technologies. Low-pressure turbine (LPT) renovations, such as zero output renovation and that with a bladeless shaft, have the most potential for reducing the feasible minimum power load, followed by electric boilers. Under a heating load of 300 MW, the feasible minimum power loads can be reduced by 71.6, 124.2, 42.4, and 157.7 MW with a heat pump, an electric boiler, a heat storage tank, and LPT renovations, respectively. However, the heating load of LPT renovations is completely coupled with power load, and its feasible operation domain is limited. Moreover, electric boilers decrease the energy and exergy efficiencies of CHP plants. Therefore, the heat storage tank decoupling technology is the preferable energy-saving option, followed by the heat pump decoupling technology.

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  • Liu, Ming & Wang, Shan & Zhao, Yongliang & Tang, Haiyu & Yan, Junjie, 2019. "Heat–power decoupling technologies for coal-fired CHP plants: Operation flexibility and thermodynamic performance," Energy, Elsevier, vol. 188(C).
    • Handle: RePEc:eee:energy:v:188:y:2019:i:c:s0360544219317694
    DOI: 10.1016/j.energy.2019.116074
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    as
    1. Xi Lu & Michael B. McElroy & Wei Peng & Shiyang Liu & Chris P. Nielsen & Haikun Wang, 2016. "Challenges faced by China compared with the US in developing wind power," Nature Energy, Nature, vol. 1(6), pages 1-6, June.
    2. Alipour, Manijeh & Zare, Kazem & Mohammadi-Ivatloo, Behnam, 2014. "Short-term scheduling of combined heat and power generation units in the presence of demand response programs," Energy, Elsevier, vol. 71(C), pages 289-301.
    3. Zhao, Yongliang & Wang, Chaoyang & Liu, Ming & Chong, Daotong & Yan, Junjie, 2018. "Improving operational flexibility by regulating extraction steam of high-pressure heaters on a 660 MW supercritical coal-fired power plant: A dynamic simulation," Applied Energy, Elsevier, vol. 212(C), pages 1295-1309.
    4. Benato, A. & Bracco, S. & Stoppato, A. & Mirandola, A., 2016. "LTE: A procedure to predict power plants dynamic behaviour and components lifetime reduction during transient operation," Applied Energy, Elsevier, vol. 162(C), pages 880-891.
    5. Böttger, Diana & Götz, Mario & Theofilidi, Myrto & Bruckner, Thomas, 2015. "Control power provision with power-to-heat plants in systems with high shares of renewable energy sources – An illustrative analysis for Germany based on the use of electric boilers in district heatin," Energy, Elsevier, vol. 82(C), pages 157-167.
    6. Wang, Chaoyang & Zhao, Yongliang & Liu, Ming & Qiao, Yongqiang & Chong, Daotong & Yan, Junjie, 2018. "Peak shaving operational optimization of supercritical coal-fired power plants by revising control strategy for water-fuel ratio," Applied Energy, Elsevier, vol. 216(C), pages 212-223.
    7. Rongxiang Yuan & Jun Ye & Jiazhi Lei & Timing Li, 2016. "Integrated Combined Heat and Power System Dispatch Considering Electrical and Thermal Energy Storage," Energies, MDPI, vol. 9(6), pages 1-17, June.
    8. Wolf-Peter Schill & Michael Pahle & Christian Gambardella, 2017. "Start-up costs of thermal power plants in markets with increasing shares of variable renewable generation," Nature Energy, Nature, vol. 2(6), pages 1-6, June.
    9. Rusin, Andrzej & Bieniek, Michał & Lipka, Marian, 2016. "Assessment of the rise in the turbine operation risk due to increased cyclicity of the power unit operation," Energy, Elsevier, vol. 96(C), pages 394-403.
    10. Mongibello, Luigi & Bianco, Nicola & Caliano, Martina & Graditi, Giorgio, 2016. "Comparison between two different operation strategies for a heat-driven residential natural gas-fired CHP system: Heat dumping vs. load partialization," Applied Energy, Elsevier, vol. 184(C), pages 55-67.
    11. Stevanovic, Vladimir D. & Ilic, Milica & Djurovic, Zeljko & Wala, Tadeusz & Muszynski, Slawomir & Gajic, Ivan, 2018. "Primary control reserve of electric power by feedwater flow rate change through an additional economizer – A case study of the thermal power plant “Nikola Tesla B”," Energy, Elsevier, vol. 147(C), pages 782-798.
    12. Zhao, Yongliang & Liu, Ming & Wang, Chaoyang & Li, Xin & Chong, Daotong & Yan, Junjie, 2018. "Increasing operational flexibility of supercritical coal-fired power plants by regulating thermal system configuration during transient processes," Applied Energy, Elsevier, vol. 228(C), pages 2375-2386.
    13. Nuytten, Thomas & Claessens, Bert & Paredis, Kristof & Van Bael, Johan & Six, Daan, 2013. "Flexibility of a combined heat and power system with thermal energy storage for district heating," Applied Energy, Elsevier, vol. 104(C), pages 583-591.
    14. Lund, Peter D. & Lindgren, Juuso & Mikkola, Jani & Salpakari, Jyri, 2015. "Review of energy system flexibility measures to enable high levels of variable renewable electricity," Renewable and Sustainable Energy Reviews, Elsevier, vol. 45(C), pages 785-807.
    15. Alipour, Manijeh & Zare, Kazem & Mohammadi-Ivatloo, Behnam, 2016. "Optimal risk-constrained participation of industrial cogeneration systems in the day-ahead energy markets," Renewable and Sustainable Energy Reviews, Elsevier, vol. 60(C), pages 421-432.
    16. Kopiske, Jakob & Spieker, Sebastian & Tsatsaronis, George, 2017. "Value of power plant flexibility in power systems with high shares of variable renewables: A scenario outlook for Germany 2035," Energy, Elsevier, vol. 137(C), pages 823-833.
    17. Rech, Sergio & Toffolo, Andrea & Lazzaretto, Andrea, 2012. "TSO-STO: A two-step approach to the optimal operation of heat storage systems with variable temperature tanks," Energy, Elsevier, vol. 45(1), pages 366-374.
    18. Armstrong, P. & Ager, D. & Thompson, I. & McCulloch, M., 2014. "Improving the energy storage capability of hot water tanks through wall material specification," Energy, Elsevier, vol. 78(C), pages 128-140.
    19. Zurigat, Y. H. & Ghajar, A. J. & Moretti, P. M., 1988. "Stratified thermal storage tank inlet mixing characterization," Applied Energy, Elsevier, vol. 30(2), pages 99-111.
    20. Fang, Tingting & Lahdelma, Risto, 2016. "Optimization of combined heat and power production with heat storage based on sliding time window method," Applied Energy, Elsevier, vol. 162(C), pages 723-732.
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