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Performance assessment of a multiple generation system integrating sludge hydrothermal treatment with a small modular nuclear reactor power plant

Author

Listed:
  • Gao, Xin
  • Chen, Heng
  • Zheng, Hongxu
  • Zhang, Yixi
  • Wei, Lai
  • Pan, Peiyuan

Abstract

A proposed integrated multiple generation (MG) system incorporating hydrothermal carbonization (HTC) of sludge with a small modular nuclear reactor (SMR) mPower aims to address sewage sludge (SS) treatment and freshwater scarcity issues in eastern coastal China, while providing a stable and reliable power production. The core of the MG system design involves the combustion of hydrochar to enhance the steam parameters of the SMR. By superheating and reheating the steam from the SMR, the system increases the total output power and the temperature of the extracted steam to supply the necessary heat for both sludge HTC and seawater desalination. When the hydrochar combustion rate is 20 t/h, the sludge feed rate is 44.21 kg/s, yielding a net system output power of 188.81 MW, with hydrochar contributing 24.24 MW of net power and a freshwater production rate of 62.88 kg/s. The evaluation results of the MG system are as follows: total system efficiency is 34.34 %, effective electric efficiency is 30.04 %, net sludge-to-electricity (STE) efficiency is 16.82 %, and the global-warming potential (GWP) per unit of sludge-generated electricity is 1.31 kg/kWh. Additionally, the system requires only 6.44 years to recover the initial investment. The exergy efficiency of the HTC process is 37.08 %, leading to a net STE exergy efficiency of just 7.77 %. Moreover, sensitivity analysis results indicate that increasing the hydrochar combustion rate, while sacrificing some efficiency, is beneficial for the MG system.

Suggested Citation

  • Gao, Xin & Chen, Heng & Zheng, Hongxu & Zhang, Yixi & Wei, Lai & Pan, Peiyuan, 2025. "Performance assessment of a multiple generation system integrating sludge hydrothermal treatment with a small modular nuclear reactor power plant," Energy, Elsevier, vol. 315(C).
  • Handle: RePEc:eee:energy:v:315:y:2025:i:c:s036054422404101x
    DOI: 10.1016/j.energy.2024.134323
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    References listed on IDEAS

    as
    1. Wu, Haoran & Chen, Heng & Fan, Lanxin & Pan, Peiyuan & Xu, Gang & Wu, Lining, 2024. "Performance analysis of a novel co-generation system integrating a small modular reactor and multiple hydrogen production equipment considering peak shaving," Energy, Elsevier, vol. 302(C).
    2. Li, Xin & Ou, Xunmin & Zhang, Xu & Zhang, Qian & Zhang, Xiliang, 2013. "Life-cycle fossil energy consumption and greenhouse gas emission intensity of dominant secondary energy pathways of China in 2010," Energy, Elsevier, vol. 50(C), pages 15-23.
    3. Haneklaus, Nils & Qvist, Staffan & Gładysz, Paweł & Bartela, Łukasz, 2023. "Why coal-fired power plants should get nuclear-ready," Energy, Elsevier, vol. 280(C).
    4. Chen, Zhidong & Hou, Yichen & Liu, Mingyu & Zhang, Guoqiang & Zhang, Kai & Zhang, Dongke & Yang, Lijun & Kong, Yanqiang & Du, Xiaoze, 2022. "Thermodynamic and economic analyses of sewage sludge resource utilization systems integrating Drying, Incineration, and power generation processes," Applied Energy, Elsevier, vol. 327(C).
    5. Wang, Liping & Chang, Yuzhi & Li, Aimin, 2019. "Hydrothermal carbonization for energy-efficient processing of sewage sludge: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 108(C), pages 423-440.
    6. Hanshik, Chung & Jeong, Hyomin & Jeong, Kwang-Woon & Choi, Soon-Ho, 2016. "Improved productivity of the MSF (multi-stage flashing) desalination plant by increasing the TBT (top brine temperature)," Energy, Elsevier, vol. 107(C), pages 683-692.
    7. Ma, Mingyan & Xu, Donghai & Gong, Xuehan & Diao, Yunfei & Feng, Peng & Kapusta, Krzysztof, 2023. "Municipal sewage sludge product recirculation catalytic pyrolysis mechanism from a kinetic perspective," Renewable Energy, Elsevier, vol. 215(C).
    8. Han, Mengxi & Liu, Hui & Chen, Dezhen & Feng, Yuheng & Tang, Yulin & Zhang, Qian & An, Qing & Hu, Weijie & Jin, Zechen & Yan, Kai, 2024. "Comprehensive evaluation of product characteristics and energy consumption in hydrothermal carbonization of food waste anaerobic digestate: A perspective on phosphorus recovery and fuel properties," Renewable Energy, Elsevier, vol. 234(C).
    9. Sayyaadi, Hoseyn & Sabzaligol, Tooraj, 2009. "Various approaches in optimization of a typical pressurized water reactor power plant," Applied Energy, Elsevier, vol. 86(7-8), pages 1301-1310, July.
    10. Chen, Heng & Li, Jiarui & Li, Tongyu & Xu, Gang & Jin, Xi & Wang, Min & Liu, Tong, 2022. "Performance assessment of a novel medical-waste-to-energy design based on plasma gasification and integrated with a municipal solid waste incineration plant," Energy, Elsevier, vol. 245(C).
    11. Pan, Peiyuan & Peng, Weike & Li, Jiarui & Chen, Heng & Xu, Gang & Liu, Tong, 2022. "Design and evaluation of a conceptual waste-to-energy approach integrating plasma waste gasification with coal-fired power generation," Energy, Elsevier, vol. 238(PC).
    12. He, Chao & Giannis, Apostolos & Wang, Jing-Yuan, 2013. "Conversion of sewage sludge to clean solid fuel using hydrothermal carbonization: Hydrochar fuel characteristics and combustion behavior," Applied Energy, Elsevier, vol. 111(C), pages 257-266.
    13. BoroumandJazi, G. & Rismanchi, B. & Saidur, R., 2013. "A review on exergy analysis of industrial sector," Renewable and Sustainable Energy Reviews, Elsevier, vol. 27(C), pages 198-203.
    14. Aragon-Briceño, Christian & Pożarlik, Artur & Bramer, Eddy & Brem, Gerrit & Wang, Shule & Wen, Yuming & Yang, Weihong & Pawlak-Kruczek, Halina & Niedźwiecki, Łukasz & Urbanowska, Agnieszka & Mościcki,, 2022. "Integration of hydrothermal carbonization treatment for water and energy recovery from organic fraction of municipal solid waste digestate," Renewable Energy, Elsevier, vol. 184(C), pages 577-591.
    15. Haneklaus, Nils & Schröders, Sarah & Zheng, Yanhua & Allelein, Hans-Josef, 2017. "Economic evaluation of flameless phosphate rock calcination with concentrated solar power and high temperature reactors," Energy, Elsevier, vol. 140(P1), pages 1148-1157.
    16. Ghavami, Niloufar & Özdenkçi, Karhan & De Blasio, Cataldo, 2024. "Process simulation of co-HTC of sewage sludge and food waste digestates and supercritical water gasification of aqueous effluent integrated with biogas plants," Energy, Elsevier, vol. 291(C).
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