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Optimization of Heat Exchanger Network via Pinch Analysis in Heat Pump-Assisted Textile Industry Wastewater Heat Recovery System

Author

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  • Yurim Kim

    (Green Materials and Processes R&D Group, Korea Institute of Industrial Technology, Ulsan 44413, Korea
    Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Korea)

  • Jonghun Lim

    (Green Materials and Processes R&D Group, Korea Institute of Industrial Technology, Ulsan 44413, Korea
    Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Korea)

  • Jae Yun Shim

    (ICT Textile and Apparel R&BD Group, Korea Institute of Industrial Technology, Ansan 15588, Korea)

  • Seokil Hong

    (ICT Textile and Apparel R&BD Group, Korea Institute of Industrial Technology, Ansan 15588, Korea)

  • Heedong Lee

    (ICT Textile and Apparel R&BD Group, Korea Institute of Industrial Technology, Ansan 15588, Korea)

  • Hyungtae Cho

    (Green Materials and Processes R&D Group, Korea Institute of Industrial Technology, Ulsan 44413, Korea)

Abstract

Reactive dyeing is primarily used in the textile industry to achieve a high level of productivity for high-quality products. This method requires heating a large amount of freshwater for dyeing and cooling for the biological treatment of discharged wastewater. If the heat of the wastewater discharged from the textile industry is recovered, energy used for heating freshwater and cooling wastewater can be significantly reduced. However, the energy efficiency of this industry remains low, owing to the limited use of waste heat. Hence, this study suggested a cost-optimal heat exchanger network (HEN) in a heat pump-assisted textile industry wastewater heat recovery system with maximizing energy efficiency simultaneously. A novel two-step approach was suggested to develop the optimal HEN in heat pump-assisted textile industry wastewater heat recovery system. In the first step, the system was designed to integrate the heat exchanger and heat pump to recover waste heat effectively. In the second step, the HEN in the newly developed system was retrofitted using super-targeted pinch analysis to minimize cost and maximize energy efficiency simultaneously. As a result, the proposed wastewater heat recovery system reduced the total annualized cost by up to 43.07% as compared to the conventional textile industry lacking a wastewater heat recovery system. These findings may facilitate economic and environmental improvements in the textile industry.

Suggested Citation

  • Yurim Kim & Jonghun Lim & Jae Yun Shim & Seokil Hong & Heedong Lee & Hyungtae Cho, 2022. "Optimization of Heat Exchanger Network via Pinch Analysis in Heat Pump-Assisted Textile Industry Wastewater Heat Recovery System," Energies, MDPI, vol. 15(9), pages 1-16, April.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:9:p:3090-:d:800365
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    References listed on IDEAS

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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. 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.
    3. Kandilli, Canan & Koclu, Aytac, 2011. "Assessment of the optimum operation conditions of a plate heat exchanger for waste heat recovery in textile industry," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(9), pages 4424-4431.
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    Cited by:

    1. 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.
    2. Juyeong Seo & Haneul Mun & Jae Yun Shim & Seok Il Hong & Hee Dong Lee & Inkyu Lee, 2022. "Advanced Design of Integrated Heat Recovery and Supply System Using Heated Water Storage for Textile Dyeing Process," Energies, MDPI, vol. 15(19), pages 1-16, October.
    3. Stanislav Boldyryev & Mariia Ilchenko & Goran Krajačić, 2024. "Improving the Economic Efficiency of Heat Pump Integration into Distillation Columns of Process Plants Applying Different Pressures of Evaporators and Condensers," Energies, MDPI, vol. 17(4), pages 1-33, February.

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