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Application of an exhaust heat recovery system for domestic hot water

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  • Liu, Lanbin
  • Fu, Lin
  • Jiang, Yi

Abstract

Typically, a great deal of heat is wasted in the drainage systems of large-scale public shower facilities, such as those in schools, barracks, and natatoriums. This paper enhances a heat pump system used in public shower facilities for exhaust heat recovery. The system consists of three sections for exhaust heat recovery: solar energy collection system, drainage collection system, and heat pump system. In the system, the energy from the solar energy collection system is used for the initial heating the shower's tap water. Afterwards, the drainage collection system collects the used shower water. Finally, the electric heat pump recycles the exhaust heat from the collected water to heat the shower's tap water. The operational practice of the system was presented. The drainage temperature and equipment capacity was optimized based on a practical example. The advantages of this heat pump system compared to gas-fired (oil-fired, coal-fired, electric) boilers are lower energy consumption, less pollution, and lower operating costs. Therefore, the system is superior in energy conservation and has a promising application prospect.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:energy:v:35:y:2010:i:3:p:1476-1481
    DOI: 10.1016/j.energy.2009.12.004
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    Cited by:

    1. Zhang, Chuan & Zhou, Li & Chhabra, Pulkit & Garud, Sushant S. & Aditya, Kevin & Romagnoli, Alessandro & Comodi, Gabriele & Dal Magro, Fabio & Meneghetti, Antonella & Kraft, Markus, 2016. "A novel methodology for the design of waste heat recovery network in eco-industrial park using techno-economic analysis and multi-objective optimization," Applied Energy, Elsevier, vol. 184(C), pages 88-102.
    2. 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.
    3. Pomianowski, M.Z. & Johra, H. & Marszal-Pomianowska, A. & Zhang, C., 2020. "Sustainable and energy-efficient domestic hot water systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 128(C).
    4. Bertrand, Alexandre & Aggoune, Riad & Maréchal, François, 2017. "In-building waste water heat recovery: An urban-scale method for the characterisation of water streams and the assessment of energy savings and costs," Applied Energy, Elsevier, vol. 192(C), pages 110-125.
    5. 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.
    6. Liu, F. & Tait, S. & Schellart, A. & Mayfield, M. & Boxall, J., 2020. "Reducing carbon emissions by integrating urban water systems and renewable energy sources at a community scale," Renewable and Sustainable Energy Reviews, Elsevier, vol. 123(C).
    7. Abdur Rehman Mazhar & Shuli Liu & Ashish Shukla, 2018. "A Key Review of Non-Industrial Greywater Heat Harnessing," Energies, MDPI, vol. 11(2), pages 1-34, February.
    8. Farzin Golzar & David Nilsson & Viktoria Martin, 2020. "Forecasting Wastewater Temperature Based on Artificial Neural Network (ANN) Technique and Monte Carlo Sensitivity Analysis," Sustainability, MDPI, vol. 12(16), pages 1-17, August.
    9. Dudkiewicz, Edyta & Fidorów-Kaprawy, Natalia, 2017. "The energy analysis of a hybrid hot tap water preparation system based on renewable and waste sources," Energy, Elsevier, vol. 127(C), pages 198-208.
    10. Zhang, Dongwei & Gao, Zhao & Fang, Chenglei & Shen, Chao & Li, Hang & Qin, Xiang, 2022. "Simulation and analysis of hot water system with comprehensive utilization of solar energy and wastewater heat," Energy, Elsevier, vol. 253(C).
    11. Sabina Kordana-Obuch & Mariusz Starzec & Michał Wojtoń & Daniel Słyś, 2023. "Greywater as a Future Sustainable Energy and Water Source: Bibliometric Mapping of Current Knowledge and Strategies," Energies, MDPI, vol. 16(2), pages 1-34, January.
    12. Zhang, Lipeng & Xia, Jianjun & Thorsen, Jan Eric & Gudmundsson, Oddgeir & Li, Hongwei & Svendsen, Svend, 2016. "Technical, economic and environmental investigation of using district heating to prepare domestic hot water in Chinese multi-storey buildings," Energy, Elsevier, vol. 116(P1), pages 281-292.
    13. Sabina Kordana-Obuch & Michał Wojtoń & Mariusz Starzec & Beata Piotrowska, 2023. "Opportunities and Challenges for Research on Heat Recovery from Wastewater: Bibliometric and Strategic Analyses," Energies, MDPI, vol. 16(17), pages 1-36, September.
    14. Ximo Masip & Emilio Navarro-Peris & José M. Corberán, 2020. "Influence of the Thermal Energy Storage Strategy on the Performance of a Booster Heat Pump for Domestic Hot Water Production System Based on the Use of Low Temperature Heat Source," Energies, MDPI, vol. 13(24), pages 1-24, December.
    15. Elgendy, E. & Schmidt, J. & Khalil, A. & Fatouh, M., 2010. "Performance of a gas engine heat pump (GEHP) using R410A for heating and cooling applications," Energy, Elsevier, vol. 35(12), pages 4941-4948.
    16. Xiang Gou & Yang Fu & Imran Ali Shah & Yamei Li & Guoyou Xu & Yue Yang & Enyu Wang & Liansheng Liu & Jinxiang Wu, 2016. "Research on a Household Dual Heat Source Heat Pump Water Heater with Preheater Based on ASPEN PLUS," Energies, MDPI, vol. 9(12), pages 1-16, December.
    17. Liu, Lanbin & Fu, Lin & Zhang, Shigang, 2014. "The design and analysis of two exhaust heat recovery systems for public shower facilities," Applied Energy, Elsevier, vol. 132(C), pages 267-275.
    18. Xiang Gou & Shian Liu & Yang Fu & Qiyan Zhang & Saima Iram & Yingfan Liu, 2018. "Experimental Study on the Performance of a Household Dual-Source Heat Pump Water Heater," Energies, MDPI, vol. 11(10), pages 1-18, October.
    19. Dong, Jiankai & Zhang, Zhuo & Yao, Yang & Jiang, Yiqiang & Lei, Bo, 2015. "Experimental performance evaluation of a novel heat pump water heater assisted with shower drain water," Applied Energy, Elsevier, vol. 154(C), pages 842-850.
    20. 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.
    21. Morales-Ruiz, S. & Rigola, J. & Oliet, C. & Oliva, A., 2016. "Analysis and design of a drain water heat recovery storage unit based on PCM plates," Applied Energy, Elsevier, vol. 179(C), pages 1006-1019.
    22. Ramadan, Mohamad & Murr, Rabih & Khaled, Mahmoud & Olabi, Abdul Ghani, 2018. "Mixed numerical - Experimental approach to enhance the heat pump performance by drain water heat recovery," Energy, Elsevier, vol. 149(C), pages 1010-1021.
    23. Hervás-Blasco, Estefanía & Navarro-Peris, Emilio & Corberán, José Miguel, 2019. "Optimal design and operation of a central domestic hot water heat pump system for a group of dwellings employing low temperature waste heat as a source," Energy, Elsevier, vol. 188(C).
    24. Piotr Ziembicki & Joachim Kozioł & Jan Bernasiński & Ireneusz Nowogoński, 2019. "Innovative System for Heat Recovery and Combustion Gas Cleaning," Energies, MDPI, vol. 12(22), pages 1-13, November.

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