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Cost-effective strategy for heat exchanger network retrofit

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  • Akpomiemie, Mary O.
  • Smith, Robin

Abstract

Cost-effective retrofit of heat exchanger networks (HENs) remains a significant challenge. This paper explores different methods for achieving cost-effective retrofit. The first part of this article presents a novel methodology for the application of heat transfer enhancement in HEN retrofit with a fixed network structure considering pressure drop constraints. Heat transfer enhancement is a low-cost option. However, heat transfer enhancement on its own without changes to the network structure provides a limited scope for energy reduction. The second part of this paper presents a new pinch retrofit method that identifies network structural changes sequentially to meet the retrofit target. However, the high capital cost associated with installing new heat exchangers, relocating existing exchangers, and augmenting the heat transfer area of existing heat exchangers most often leads to uneconomic retrofits. Low-cost retrofit requires few modifications. Therefore, the third part of this paper combines the new pinch retrofit method with the use of heat transfer enhancement to provide low-cost retrofit by combining the merits of both approaches. A case study highlights the benefits of the new approach.

Suggested Citation

  • Akpomiemie, Mary O. & Smith, Robin, 2018. "Cost-effective strategy for heat exchanger network retrofit," Energy, Elsevier, vol. 146(C), pages 82-97.
  • Handle: RePEc:eee:energy:v:146:y:2018:i:c:p:82-97
    DOI: 10.1016/j.energy.2017.09.005
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    References listed on IDEAS

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    1. Pan, Ming & Jamaliniya, Sara & Smith, Robin & Bulatov, Igor & Gough, Martin & Higley, Tom & Droegemueller, Peter, 2013. "New insights to implement heat transfer intensification for shell and tube heat exchangers," Energy, Elsevier, vol. 57(C), pages 208-221.
    2. 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.
    3. Pan, Ming & Bulatov, Igor & Smith, Robin, 2016. "Improving heat recovery in retrofitting heat exchanger networks with heat transfer intensification, pressure drop constraint and fouling mitigation," Applied Energy, Elsevier, vol. 161(C), pages 611-626.
    4. 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.
    5. 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.
    6. 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:

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    3. 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).
    4. Pintarič, Zorka Novak & Varbanov, Petar Sabev & Klemeš, Jiří Jaromír & Kravanja, Zdravko, 2019. "Multi-objective multi-period synthesis of energy efficient processes under variable environmental taxes," Energy, Elsevier, vol. 189(C).
    5. Dizaji, Hamed Sadighi & Pourhedayat, Samira & Aldawi, Fayez & Moria, Hazim & Anqi, Ali E. & Jarad, Fahd, 2022. "Proposing an innovative and explicit economic criterion for all passive heat transfer enhancement techniques of heat exchangers," Energy, Elsevier, vol. 239(PC).
    6. 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).
    7. 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.
    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. 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.
    10. Boldyryev, Stanislav & Gil, Tatyana & Ilchenko, Mariia, 2022. "Environmental and economic assessment of the efficiency of heat exchanger network retrofit options based on the experience of society and energy price records," Energy, Elsevier, vol. 260(C).
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