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Practical Energy Retrofit of Heat Exchanger Network Not Containing Utility Path

Author

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  • Zdeněk Jegla

    (Institute of Process Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2, 616 69 Brno, Czech Republic)

  • Vít Freisleben

    (Institute of Process Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2, 616 69 Brno, Czech Republic)

Abstract

The paper presents a method developed for the energy retrofit of specific Heat Exchanger Networks not containing Utility Paths. This useful and highly practically oriented method involves a systematic approach to obtaining the most efficient minimal modification topology of a Heat Exchanger Network, which brings the greatest benefits in terms of energy savings of the modified process. In principle, it is focused on finding the most suitable location for a new heat exchanger insertion to create the most efficient Utility Path. The next step of the developed retrofit method is the detailed design of the newly integrated heat exchanger using commercial software in combination with several heuristic rules regarding the cost-free investment and maintenance cost minimization of a new heat exchanger and considering heat transfer enhancement within the available exchanger type, space, and fluids pressure drop constraints. The detail design stage of the method also includes observation and reassessment of the performance and operational parameters of the existing heat exchangers. Then, the developed method is applied to the case of the Heat Exchanger Network retrofit in the process of the hydrogenation of oil.

Suggested Citation

  • Zdeněk Jegla & Vít Freisleben, 2020. "Practical Energy Retrofit of Heat Exchanger Network Not Containing Utility Path," Energies, MDPI, vol. 13(11), pages 1-16, May.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:11:p:2711-:d:364256
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    References listed on IDEAS

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    1. Akpomiemie, Mary O. & Smith, Robin, 2018. "Cost-effective strategy for heat exchanger network retrofit," Energy, Elsevier, vol. 146(C), pages 82-97.
    2. Gadalla, Mamdouh A., 2015. "A new graphical method for Pinch Analysis applications: Heat exchanger network retrofit and energy integration," Energy, Elsevier, vol. 81(C), pages 159-174.
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    Cited by:

    1. Sofie Marton & Elin Svensson & Simon Harvey, 2020. "Operability and Technical Implementation Issues Related to Heat Integration Measures—Interview Study at an Oil Refinery in Sweden," Energies, MDPI, vol. 13(13), pages 1-23, July.
    2. Vojtěch Turek & Bohuslav Kilkovský & Ján Daxner & Dominika Babička Fialová & Zdeněk Jegla, 2024. "Industrial Waste Heat Utilization in the European Union—An Engineering-Centric Review," Energies, MDPI, vol. 17(9), pages 1-27, April.
    3. Leopold Prendl & René Hofmann, 2021. "Case Study of Multi-Period MILP HENS with Heat Pump and Storage Options for the Application in Energy Intensive Industries," Energies, MDPI, vol. 14(20), pages 1-21, October.

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