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Simultaneous diagnosis and retrofit of heat exchanger network via individual process stream mapping

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  • Lai, Yee Qing
  • Manan, Zainuddin Abdul
  • Wan Alwi, Sharifah Rafidah

Abstract

Medium and large scale industries typically consume large amounts of energy, and are under pressure to increase energy efficiency and reduce energy wastages. Conventional insight-based heat exchanger network (HEN) retrofit methods typically combine graphical visualisation and algebraic tools to manage different retrofit stages. These stages often involve repetitive calculations of approach temperature, enthalpy balance and heat transfer area to assess the HEN feasibility and cost-effectiveness. This paper extends the individual stream temperature versus enthalpy plot (STEP) methodology that was introduced for HEN synthesis, to HEN retrofit. The STEP retrofit method proposed in this work enables users to simultaneously diagnose and retrofit existing HEN by using only the STEP diagram that maintains the characteristics of individual process streams. Users can graphically perform individual stream mapping without having to calculate stream enthalpies or to check for minimum temperature approach (ΔTmin) violation during retrofit. Application of the new STEP retrofit method on an industrial case study demonstrates its advantages in terms of user interactiveness, simplicity of use, flexibility to customise the methodology to achieve retrofit goals of plant owners, and the least amount of efforts needed to achieve comparable results as those of established retrofit methods.

Suggested Citation

  • Lai, Yee Qing & Manan, Zainuddin Abdul & Wan Alwi, Sharifah Rafidah, 2018. "Simultaneous diagnosis and retrofit of heat exchanger network via individual process stream mapping," Energy, Elsevier, vol. 155(C), pages 1113-1128.
  • Handle: RePEc:eee:energy:v:155:y:2018:i:c:p:1113-1128
    DOI: 10.1016/j.energy.2018.05.021
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    References listed on IDEAS

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    1. Kamel, Dina A. & Gadalla, Mamdouh A. & Abdelaziz, Omar Y. & Labib, Mennat A. & Ashour, Fatma H., 2017. "Temperature driving force (TDF) curves for heat exchanger network retrofit – A case study and implications," Energy, Elsevier, vol. 123(C), pages 283-295.
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    Citations

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    Cited by:

    1. Christian Langner & Elin Svensson & Simon Harvey, 2020. "A Framework for Flexible and Cost-Efficient Retrofit Measures of Heat Exchanger Networks," Energies, MDPI, vol. 13(6), pages 1-24, March.
    2. Lai, Yee Qing & Wan Alwi, Sharifah Rafidah & Manan, Zainuddin Abdul, 2019. "Customised retrofit of heat exchanger network combining area distribution and targeted investment," Energy, Elsevier, vol. 179(C), pages 1054-1066.
    3. 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.
    4. Wang, Bohong & Klemeš, Jiří Jaromír & Varbanov, Petar Sabev & Chin, Hon Huin & Wang, Qiu-Wang & Zeng, Min, 2020. "Heat exchanger network retrofit by a shifted retrofit thermodynamic grid diagram-based model and a two-stage approach," Energy, Elsevier, vol. 198(C).
    5. 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).
    6. Teng, Sin Yong & Orosz, Ákos & How, Bing Shen & Jansen, Jeroen J. & Friedler, Ferenc, 2023. "Retrofit heat exchanger network optimization via graph-theoretical approach: Pinch-bounded N-best solutions allows positional swapping," Energy, Elsevier, vol. 283(C).
    7. Chin, Hon Huin & Wang, Bohong & Varbanov, Petar Sabev & Klemeš, Jiří Jaromír & Zeng, Min & Wang, Qiu-Wang, 2020. "Long-term investment and maintenance planning for heat exchanger network retrofit," Applied Energy, Elsevier, vol. 279(C).
    8. Lal, Nathan S. & Atkins, Martin J. & Walmsley, Timothy G. & Walmsley, Michael R.W. & Neale, James R., 2019. "Insightful heat exchanger network retrofit design using Monte Carlo simulation," Energy, Elsevier, vol. 181(C), pages 1129-1141.
    9. Zhang, Di & Lv, Donghui & Yin, Changfang & Liu, Guilian, 2020. "Combined pinch and mathematical programming method for coupling integration of reactor and threshold heat exchanger network," Energy, Elsevier, vol. 205(C).
    10. Er, Hong An & Wan Alwi, Sharifah Rafidah & Manan, Zainuddin Abdul & Klemeš, Jiří Jaromír, 2022. "Simultaneous retrofit of direct and indirect Heat Exchanger Storage Network (HESN) via individual batch process stream mapping," Energy, Elsevier, vol. 261(PA).
    11. Lai, Yee Qing & Wan Alwi, Sharifah Rafidah & Manan, Zainuddin Abdul, 2020. "Graphical customisation of process and utility changes for heat exchanger network retrofit using individual stream temperature versus enthalpy plot," Energy, Elsevier, vol. 203(C).
    12. 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.
    13. Wang, Bohong & Klemeš, Jiří Jaromír & Li, Nianqi & Zeng, Min & Varbanov, Petar Sabev & Liang, Yongtu, 2021. "Heat exchanger network retrofit with heat exchanger and material type selection: A review and a novel method," Renewable and Sustainable Energy Reviews, Elsevier, vol. 138(C).

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