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Water and Energy Efficiency Improvement of Steel Wire Manufacturing by Circuit Modelling and Optimisation

Author

Listed:
  • Muriel Iten

    (Instituto de Soldadura e Qualidade, 4415-491 Grijó, Portugal)

  • Miguel Oliveira

    (Departamento de Engenharia Química, Instituto Superior Técnico, 1049-001 Lisboa, Portugal)

  • Diogo Costa

    (Departamento de Engenharia Mecânica, Faculdade de Engenharia da Universidade do Porto, 4200-465 Porto, Portugal)

  • Jochen Michels

    (Dechema Research Institute, 60486 Frankfurt am Main, Germany)

Abstract

Industrial water circuits (IWC) are frequently neglected as they are auxiliary circuits of industrial processes, leading to a missing awareness of their energy- and water-saving potential. Industrial sectors such as steel, chemicals, paper and food processing are notable in their water-related energy requirements. Improvement of energy efficiency in industrial processes saves resources and reduces manufacturing costs. The paper presents a cooling IWC of a steel wire processing plant in which steel billets are transformed into wire. The circuit was built in object-oriented language in OpenModelica and validated with real plant data. Several improvement measures have been identified and an optimisation methodology has been proposed. A techno-economic analysis has been carried out to estimate the energy savings and payback time for the proposed improvement measures. The suggested measures allow energy savings up to 29% in less than 3 years’ payback time and water consumption savings of approximately 7.5%.

Suggested Citation

  • Muriel Iten & Miguel Oliveira & Diogo Costa & Jochen Michels, 2019. "Water and Energy Efficiency Improvement of Steel Wire Manufacturing by Circuit Modelling and Optimisation," Energies, MDPI, vol. 12(2), pages 1-20, January.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:2:p:223-:d:196952
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    Cited by:

    1. Miguel Castro Oliveira & Muriel Iten & Henrique A. Matos, 2022. "Review on Water and Energy Integration in Process Industry: Water-Heat Nexus," Sustainability, MDPI, vol. 14(13), pages 1-24, June.

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