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Energy and Circular Economy: Nexus beyond Concepts

Author

Listed:
  • Florinda F. Martins

    (Instituto Superior de Engenharia do Porto—ISEP, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal)

  • Hélio Castro

    (Instituto Superior de Engenharia do Porto—ISEP, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal
    Institute for Systems and Computer Engineering, Technology and Science—INESC TEC, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal)

  • Miroslava Smitková

    (Institute of Power and Applied Electrical Engineering, FEI—Slovak University of Technology, Ilkovičova 3, 841 04 Bratislava, Slovakia)

  • Carlos Felgueiras

    (Instituto Superior de Engenharia do Porto—ISEP, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal
    CIETI—Center for Innovation in Engineering and Industrial Technology, School of Engineering (ISEP), Polytechnic of Porto (P.Porto), Rua Dr. António Bernardino de Almeida 431, 4249-015 Porto, Portugal)

  • Nídia Caetano

    (Instituto Superior de Engenharia do Porto—ISEP, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal
    LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
    ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal)

Abstract

Energy and materials are increasingly important in industrialized countries, and they impact the economy, sustainability, and people’s future. The purpose of this work was to study the relationship between energy and the circular economy using methods such as Pearson’s correlation and a principal component analysis. Thus, 12 strong correlations were found, with 5 of them between the following relevant variables from two different subjects: the correlations of the raw material consumption, the domestic material consumption, and the material import dependency with the final energy consumption in transport (0.81, 0.92, and 0.81); the correlation of the circular material use rate with the final energy consumption in households (0.70); and the correlation of the material import dependency with the final energy consumption in industry (0.89). The time series forecast was only conclusive for the waste generated, showing that it will increase in the next 10 years.

Suggested Citation

  • Florinda F. Martins & Hélio Castro & Miroslava Smitková & Carlos Felgueiras & Nídia Caetano, 2024. "Energy and Circular Economy: Nexus beyond Concepts," Sustainability, MDPI, vol. 16(5), pages 1-19, February.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:5:p:1728-:d:1342080
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    References listed on IDEAS

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