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Retrofit of heat exchanger networks without topology modifications and additional heat transfer area

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  • Akpomiemie, Mary O.
  • Smith, Robin

Abstract

Numerous design methods for the retrofit of heat exchanger networks have been proposed over the years, with most depending greatly on topology modification and additional heat transfer area. However, topology modifications and the installation of additional heat transfer area can lead to uneconomic retrofit in many cases, largely as a result of the expense of civil engineering work and pipework modifications. Retrofit of a heat exchanger network can be achieved without the need for topology modifications and additional heat transfer area by the use of heat transfer enhancement. This paper presents a methodology for heat exchanger network retrofit around a fixed network and without the need for additional heat transfer area and topology modifications. Heat transfer enhancement techniques are used to improve the energy performance of an existing heat exchanger network. A dominance ratio is explored to identify the best location to apply enhancement. Sensitivity analysis is used in finding the sequence of the most effective heat exchangers to enhance in order to improve the performance of the network. Sensitivity analysis introduced to study network flexibility is adapted to study heat transfer enhancement. Heat exchanger networks are complex systems with interactions between various components. A change in one component can have an effect on other downstream heat exchangers. Therefore, the proposed methodology presents a way of eliminating the need for additional heat transfer area after enhancement, while ensuring the stream target temperatures are met. This is based on a key optimisation strategy which depends on a trade-off between utility consumption and the need for additional heat transfer area.

Suggested Citation

  • Akpomiemie, Mary O. & Smith, Robin, 2015. "Retrofit of heat exchanger networks without topology modifications and additional heat transfer area," Applied Energy, Elsevier, vol. 159(C), pages 381-390.
  • Handle: RePEc:eee:appene:v:159:y:2015:i:c:p:381-390
    DOI: 10.1016/j.apenergy.2015.09.017
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    References listed on IDEAS

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    1. Jiang, Ning & Shelley, Jacob David & Doyle, Steve & Smith, Robin, 2014. "Heat exchanger network retrofit with a fixed network structure," Applied Energy, Elsevier, vol. 127(C), pages 25-33.
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    Cited by:

    1. Florian Schlosser & Heinrich Wiebe & Timothy G. Walmsley & Martin J. Atkins & Michael R. W. Walmsley & Jens Hesselbach, 2020. "Heat Pump Bridge Analysis Using the Modified Energy Transfer Diagram," Energies, MDPI, vol. 14(1), pages 1-24, December.
    2. Li, Nianqi & Klemeš, Jiří Jaromír & Sunden, Bengt & Wu, Zan & Wang, Qiuwang & Zeng, Min, 2022. "Heat exchanger network synthesis considering detailed thermal-hydraulic performance: Methods and perspectives," Renewable and Sustainable Energy Reviews, Elsevier, vol. 168(C).
    3. Klemeš, Jiří Jaromír & Wang, Qiu-Wang & Varbanov, Petar Sabev & Zeng, Min & Chin, Hon Huin & Lal, Nathan Sanjay & Li, Nian-Qi & Wang, Bohong & Wang, Xue-Chao & Walmsley, Timothy Gordon, 2020. "Heat transfer enhancement, intensification and optimisation in heat exchanger network retrofit and operation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 120(C).
    4. Keivan Nemati-Amirkolaii & Hedi Romdhana & Marie-Laure Lameloise, 2019. "Pinch Methods for Efficient Use of Water in Food Industry: A Survey Review," Sustainability, MDPI, vol. 11(16), pages 1-26, August.
    5. Akpomiemie, Mary O. & Smith, Robin, 2016. "Retrofit of heat exchanger networks with heat transfer enhancement based on an area ratio approach," Applied Energy, Elsevier, vol. 165(C), pages 22-35.
    6. Akpomiemie, Mary O. & Smith, Robin, 2018. "Cost-effective strategy for heat exchanger network retrofit," Energy, Elsevier, vol. 146(C), pages 82-97.
    7. Klemeš, Jiří Jaromír & Varbanov, Petar Sabev & Walmsley, Timothy G. & Jia, Xuexiu, 2018. "New directions in the implementation of Pinch Methodology (PM)," Renewable and Sustainable Energy Reviews, Elsevier, vol. 98(C), pages 439-468.

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