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Performance analysis of a dual loop thermally regenerative electrochemical cycle for waste heat recovery

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  • Long, Rui
  • Li, Baode
  • Liu, Zhichun
  • Liu, Wei

Abstract

A DLTREC (dual loop thermally regenerative electrochemical cycle) system consisting of two hot electrochemical cells and a cold one is proposed for harvesting waste heat in a more efficient manner. With the maximum power output as the objective function, an optimal analysis of the DLTREC system based on a GA (genetic algorithm) method was conducted for different inlet temperatures of the heat source. For comparison, an optimization analysis of conventional TREC (thermally regenerative electrochemical cycle) systems was also conducted under equivalent criterion. The maximum output, the corresponding electrical and exergy efficiencies, and exergy destruction of the two energy harvesting systems were analyzed and compared. Results revealed that the DLTREC system can increase the power output and decrease the irreversibility. For the prescribed heat source inlet temperature of 393.15 K, the maximum power output of the DLTREC system was 50.11% larger than that of the conventional TREC system and the electrical efficiency was improved by 13.31%. The exergy efficiency of the DLTREC system was 19.41% larger than that of a conventional TREC system.

Suggested Citation

  • Long, Rui & Li, Baode & Liu, Zhichun & Liu, Wei, 2016. "Performance analysis of a dual loop thermally regenerative electrochemical cycle for waste heat recovery," Energy, Elsevier, vol. 107(C), pages 388-395.
    • Handle: RePEc:eee:energy:v:107:y:2016:i:c:p:388-395
    DOI: 10.1016/j.energy.2016.04.058
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    References listed on IDEAS

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    5. Long, Rui & Li, Baode & Liu, Zhichun & Liu, Wei, 2015. "Multi-objective optimization of a continuous thermally regenerative electrochemical cycle for waste heat recovery," Energy, Elsevier, vol. 93(P1), pages 1022-1029.
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    Cited by:

    1. Zhang, Xin & Cai, Ling & Liao, Tianjun & Zhou, Yinghui & Zhao, Yingru & Chen, Jincan, 2018. "Exploiting the waste heat from an alkaline fuel cell via electrochemical cycles," Energy, Elsevier, vol. 142(C), pages 983-990.
    2. Dawahdeh, Ahmad I. & Al-Nimr, Moh'd A., 2022. "Power generation by integrating a thermally regenerative electrochemical cycle (TREC) with a biofuel stove," Energy, Elsevier, vol. 251(C).
    3. Cai, Yuhao & Qian, Xin & Su, Ruihang & Jia, Xiongjie & Ying, Jinhui & Zhao, Tianshou & Jiang, Haoran, 2024. "Thermo-electrochemical modeling of thermally regenerative flow batteries," Applied Energy, Elsevier, vol. 355(C).
    4. Huang, Yuewu & Li, Danyi & Chen, Zhuo, 2022. "Potential analysis of a system hybridizing dye-sensitized solar cell with thermally regenerative electrochemical devices," Energy, Elsevier, vol. 260(C).
    5. Yingyan Lin & Ronghui Xiao & Liwei Chen & Houcheng Zhang, 2023. "Performance Potential of a Concentrated Photovoltaic-Electrochemical Hybrid System," Energies, MDPI, vol. 17(1), pages 1-21, December.
    6. Al-Nimr, Moh'd A. & Dawahdeh, Ahmad I. & Ali, Hussain A., 2022. "Power generation by integrating a thermally regenerative electrochemical cycle (TREC) with a solar pond and underground heat exchanger," Renewable Energy, Elsevier, vol. 189(C), pages 663-675.
    7. Lin, Jian & Wu, Nianyuan & Li, Li & Xie, Meina & Xie, Shan & Wang, Xiaonan & Brandon, Nigel & Sun, Yifei & Chen, Jincan & Zhao, Yingru, 2022. "Performance and parameter optimization of a capacitive salinity/heat engine for harvesting salinity difference energy and low grade heat," Renewable Energy, Elsevier, vol. 183(C), pages 283-293.
    8. Long, Rui & Lai, Xiaotian & Liu, Zhichun & Liu, Wei, 2019. "Pressure retarded osmosis: Operating in a compromise between power density and energy efficiency," Energy, Elsevier, vol. 172(C), pages 592-598.
    9. Fathabadi, Hassan, 2019. "Solar energy harvesting in buildings using a proposed novel electrochemical device as an alternative to PV modules," Renewable Energy, Elsevier, vol. 133(C), pages 118-125.
    10. Dawahdeh, Ahmad I. & Al-Nimr, Moh'd.A., 2023. "A novel energy harvesting and battery thermal management in hybrid vehicles using a thermally regenerative electrochemical device," Energy, Elsevier, vol. 270(C).
    11. Chen, Ruihua & Zhao, Ruikai & Deng, Shuai & Zhao, Li & Xu, Weicong, 2021. "A cycle research methodology for thermo-chemical engines: From ideal cycle to case study," Energy, Elsevier, vol. 228(C).
    12. Tang, Xin & Li, Guiqiang & Zhao, Xudong & Shi, Kai & Lao, Li, 2022. "Simulation analysis and experimental validation of enhanced photovoltaic thermal module by harnessing heat," Applied Energy, Elsevier, vol. 309(C).
    13. Tang, Xin & Li, Guiqiang & Zhao, Xudong, 2021. "Effect of air gap on a novel hybrid photovoltaic/thermal and thermally regenerative electrochemical cycle system," Applied Energy, Elsevier, vol. 293(C).
    14. Long, Rui & Li, Baode & Liu, Zhichun & Liu, Wei, 2018. "Performance analysis of reverse electrodialysis stacks: Channel geometry and flow rate optimization," Energy, Elsevier, vol. 158(C), pages 427-436.
    15. Chen, Ruihua & Deng, Shuai & Xu, Weicong & Zhao, Li, 2020. "A graphic analysis method of electrochemical systems for low-grade heat harvesting from a perspective of thermodynamic cycles," Energy, Elsevier, vol. 191(C).

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