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Flexible and stable heat energy recovery from municipal wastewater treatment plants using a fixed-inverter hybrid heat pump system

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  • Chae, Kyu-Jung
  • Ren, Xianghao

Abstract

Among many options to improve energy self-sufficiency in sewage treatment plants, heat extraction using a heat pump holds great promise, since wastewater contains considerable amounts of thermal energy. The actual heat energy demand at municipal wastewater treatment plants (WWTPs) varies widely with time; however, the heat pumps typically installed in WWTPs are of the on/off controlled fixed-speed type, thus mostly run intermittently at severe part-load conditions with poor efficiency. To solve this mismatch, a specially designed, fixed-inverter hybrid heat pump system incorporating a fixed-speed compressor and an inverter-driven, variable-speed compressor was developed and tested in a real WWTP. In this hybrid configuration, to improve load response and energy efficiency, the base-heat load was covered by the fixed-speed compressor consuming relatively less energy than the variable-speed type at nominal power, and the remaining varying load was handled by the inverter compressor which exhibits a high load-match function while consuming relatively greater energy. The heat pump system developed reliably extracted heat from the treated effluent as a heat source for heating and cooling purposes throughout the year, and actively responded to the load changes with a high measured coefficient of performance (COP) of 4.06 for heating and 3.64 for cooling. Moreover, this hybrid operation yielded a performance up to 15.04% better on part loads than the single inverter operation, suggesting its effectiveness for improving annual energy saving when applied to highly load-fluctuating real WWTPs. To improve the overall efficiency of the heat recovery system, although the heat pump is the largest energy-consuming component, taking up 56.0–68.5% of the total energy, new efforts to develop a novel design are also needed to make the heat exchanger more energy-efficient.

Suggested Citation

  • Chae, Kyu-Jung & Ren, Xianghao, 2016. "Flexible and stable heat energy recovery from municipal wastewater treatment plants using a fixed-inverter hybrid heat pump system," Applied Energy, Elsevier, vol. 179(C), pages 565-574.
    • Handle: RePEc:eee:appene:v:179:y:2016:i:c:p:565-574
    DOI: 10.1016/j.apenergy.2016.07.021
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    1. Pulat, E. & Etemoglu, A.B. & Can, M., 2009. "Waste-heat recovery potential in Turkish textile industry: Case study for city of Bursa," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(3), pages 663-672, April.
    2. Qi, Zishu & Gao, Qing & Liu, Yan & Yan, Y.Y. & Spitler, Jeffrey D., 2014. "Status and development of hybrid energy systems from hybrid ground source heat pump in China and other countries," Renewable and Sustainable Energy Reviews, Elsevier, vol. 29(C), pages 37-51.
    3. Shen, Chao & Jiang, Yiqiang & Yao, Yang & Wang, Xinlei, 2012. "An experimental comparison of two heat exchangers used in wastewater source heat pump: A novel dry-expansion shell-and-tube evaporator versus a conventional immersed evaporator," Energy, Elsevier, vol. 47(1), pages 600-608.
    4. Blarke, Morten B., 2012. "Towards an intermittency-friendly energy system: Comparing electric boilers and heat pumps in distributed cogeneration," Applied Energy, Elsevier, vol. 91(1), pages 349-365.
    5. Park, Ki-Jung & Jung, Dongsoo, 2009. "Performance of heat pumps charged with R170/R290 mixture," Applied Energy, Elsevier, vol. 86(12), pages 2598-2603, December.
    6. 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.
    7. Chao, Shen & Yiqiang, Jiang & Yang, Yao & Shiming, Deng, 2012. "Experimental performance evaluation of a novel dry-expansion evaporator with defouling function in a wastewater source heat pump," Applied Energy, Elsevier, vol. 95(C), pages 202-209.
    8. Elías-Maxil, J.A. & van der Hoek, Jan Peter & Hofman, Jan & Rietveld, Luuk, 2014. "Energy in the urban water cycle: Actions to reduce the total expenditure of fossil fuels with emphasis on heat reclamation from urban water," Renewable and Sustainable Energy Reviews, Elsevier, vol. 30(C), pages 808-820.
    9. Liu, Lanbin & Fu, Lin & Jiang, Yi, 2010. "Application of an exhaust heat recovery system for domestic hot water," Energy, Elsevier, vol. 35(3), pages 1476-1481.
    10. Self, Stuart J. & Reddy, Bale V. & Rosen, Marc A., 2013. "Geothermal heat pump systems: Status review and comparison with other heating options," Applied Energy, Elsevier, vol. 101(C), pages 341-348.
    11. Zhang, Xingxing & Shen, Jingchun & Xu, Peng & Zhao, Xudong & Xu, Ying, 2014. "Socio-economic performance of a novel solar photovoltaic/loop-heat-pipe heat pump water heating system in three different climatic regions," Applied Energy, Elsevier, vol. 135(C), pages 20-34.
    12. Hawlader, M. N. A. & Chou, S. K. & Jahangeer, K. A. & Rahman, S. M. A. & Lau K. W., Eugene, 2003. "Solar-assisted heat-pump dryer and water heater," Applied Energy, Elsevier, vol. 74(1-2), pages 185-193, January.
    13. Brückner, Sarah & Liu, Selina & Miró, Laia & Radspieler, Michael & Cabeza, Luisa F. & Lävemann, Eberhard, 2015. "Industrial waste heat recovery technologies: An economic analysis of heat transformation technologies," Applied Energy, Elsevier, vol. 151(C), pages 157-167.
    14. Hepbasli, Arif & Kalinci, Yildiz, 2009. "A review of heat pump water heating systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(6-7), pages 1211-1229, August.
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    1. Nigel Twi-Yeboah & Dacosta Osei & William H. Dontoh & George Adu Asamoah & Janet Baffoe & Michael K. Danquah, 2024. "Enhancing Energy Efficiency and Resource Recovery in Wastewater Treatment Plants," Energies, MDPI, vol. 17(13), pages 1-23, June.
    2. Ziyang Guo & Yongjun Sun & Shu-Yuan Pan & Pen-Chi Chiang, 2019. "Integration of Green Energy and Advanced Energy-Efficient Technologies for Municipal Wastewater Treatment Plants," IJERPH, MDPI, vol. 16(7), pages 1-29, April.
    3. Liu, Runxi & Huang, Runyao & Shen, Ziheng & Wang, Hongtao & Xu, Jin, 2021. "Optimizing the recovery pathway of a net-zero energy wastewater treatment model by balancing energy recovery and eco-efficiency," Applied Energy, Elsevier, vol. 298(C).
    4. Guo, Xiaochao & Ma, Zhixian & Ma, Liangdong & Zhang, Jili, 2019. "Experimental study on the performance of a novel in–house heat pump water heater with freezing latent heat evaporator and assisted by domestic drain water," Applied Energy, Elsevier, vol. 235(C), pages 442-450.
    5. Gu, Yifan & Li, Yue & Li, Xuyao & Luo, Pengzhou & Wang, Hongtao & Robinson, Zoe P. & Wang, Xin & Wu, Jiang & Li, Fengting, 2017. "The feasibility and challenges of energy self-sufficient wastewater treatment plants," Applied Energy, Elsevier, vol. 204(C), pages 1463-1475.
    6. Mariusz Szreder & Marek Miara, 2020. "Impact of Compressor Drive System Efficiency on Air Source Heat Pump Performance for Heating Hot Water," Sustainability, MDPI, vol. 12(24), pages 1-17, December.
    7. Tomasz Łokietek & Wojciech Tuchowski & Dorota Leciej-Pirczewska & Anna Głowacka, 2022. "Heat Recovery from a Wastewater Treatment Process—Case Study," Energies, MDPI, vol. 16(1), pages 1-15, December.
    8. Zhao, Chuandang & Xu, Jiuping & Wang, Fengjuan & Xie, Guo & Tan, Cheng, 2024. "Economic–environmental trade-offs based support policy towards optimal planning of wastewater heat recovery," Applied Energy, Elsevier, vol. 364(C).
    9. Golzar, Farzin & Silveira, Semida, 2021. "Impact of wastewater heat recovery in buildings on the performance of centralized energy recovery – A case study of Stockholm," Applied Energy, Elsevier, vol. 297(C).

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